A fighter-bomber is a fighter aircraft that has been modified, or used primarily, as a light bomber or attack aircraft . It differs from bomber and attack aircraft primarily in its origins, as a fighter that has been adapted into other roles, whereas bombers and attack aircraft are developed specifically for bombing and attack roles.
117-556: The Dassault MD.452 Mystère is a 1950s French fighter-bomber . It was a straightforward development of the successful Dassault Ouragan After the success of the Ouragan , Dassault was working on a more advanced machine which would take to the air in early 1951 as the MD.452 Mystère I . The first prototype Mystère I was essentially an Ouragan with a 30-degree swept wing and modified tail surfaces. Two further prototypes followed, powered by
234-592: A Boeing B-17 Flying Fortress or 10 five-inch (127 mm) High Velocity Aircraft Rockets . The first pilots to fly the Thunderbolt from England were Americans who had been flying Spitfires in the RAF before the U.S. joined the war. They were not impressed initially; the Thunderbolt lost out to the more nimble Spitfire so consistently in mock dogfights that these encounters were eventually banned. But by November 25, 1943 Thunderbolts had found their true niche, attacking
351-443: A gas turbine engine offered. Thus was born the idea to mate a turbine engine to a traditional propeller. Because gas turbines optimally spin at high speed, a turboprop features a gearbox to lower the speed of the shaft so that the propeller tips don't reach supersonic speeds. Often the turbines that drive the propeller are separate from the rest of the rotating components so that they can rotate at their own best speed (referred to as
468-544: A Luftwaffe airfield at Saint-Omer near Calais, France. On October 13, 1944, a Thunderbolt from 9th Air Force damaged the German Torpedoboot Ausland 38 (formerly the Italian 750 ton torpedo boat Spada) so badly near Trieste with gunfire alone that the ship was scuttled. The Vought F4U Corsair was built around the same Pratt & Whitney R-2800 Double Wasp engine as the Thunderbolt, but for
585-616: A Red Cross flag painted on at least one funnel. The previous day the Captain of the Cap Arcona refused to take any more inmates on board. On return to shore in longboats they were gunned down by Hitler Jugend , SS Guards and German Marines . Of an estimated 14,500 victims in the area two days earlier only 1,450 survived. The Hawker Tempest was a development of the Typhoon using the thin wing with an aerofoil developed by NACA and
702-685: A Soviet boycott of the United Nations , a vote was carried without Soviet veto, to intervene in support of the South. Most readily available were U.S. and British Commonwealth forces occupying Japan and the Pacific fleets. The first arrivals were fighter-bombers, which helped to repulse the Northern attack on the vital port of Pusan , the last small territory held by the South. Some strategists felt that air and battleship strikes alone could halt
819-618: A better efficiency. A hybrid system as emergency back-up and for added power in take-off is offered for sale by Axter Aerospace, Madrid, Spain. Small multicopter UAVs are almost always powered by electric motors. Reaction engines generate the thrust to propel an aircraft by ejecting the exhaust gases at high velocity from the engine, the resultant reaction of forces driving the aircraft forwards. The most common reaction propulsion engines flown are turbojets, turbofans and rockets. Other types such as pulsejets , ramjets , scramjets and pulse detonation engines have also flown. In jet engines
936-419: A combustion section where fuel is added and ignited, one or more turbines that extract power from the expanding exhaust gases to drive the compressor, and an exhaust nozzle that accelerates the exhaust gases out the back of the engine to create thrust. When turbojets were introduced, the top speed of fighter aircraft equipped with them was at least 100 miles per hour faster than competing piston-driven aircraft. In
1053-564: A common crankshaft. The vast majority of V engines are water-cooled. The V design provides a higher power-to-weight ratio than an inline engine, while still providing a small frontal area. Perhaps the most famous example of this design is the legendary Rolls-Royce Merlin engine, a 27-litre (1649 in ) 60° V12 engine used in, among others, the Spitfires that played a major role in the Battle of Britain . A horizontally opposed engine, also called
1170-490: A cooling system into the air duct of a hydrogen jet engine permits greater fuel injection at high speed and obviates the need for the duct to be made of refractory or actively cooled materials. This greatly improves the thrust/weight ratio of the engine at high speed. It is thought that this design of engine could permit sufficient performance for antipodal flight at Mach 5, or even permit a single stage to orbit vehicle to be practical. The hybrid air-breathing SABRE rocket engine
1287-595: A crew of three, and its payload was just 1,200 lb (540 kg) of bombs. The Blenheim suffered disastrous losses over France in 1939 when it encountered Messerschmitt Bf 109s , and light bombers were quickly withdrawn. In contrast, the Vought F4U Corsair fighter —which entered service in December 1942—had in common with its eventual U.S. Navy stablemate, the Grumman F6F Hellcat and
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#17327839437161404-440: A cylinder on the other side. Opposed, air-cooled four- and six-cylinder piston engines are by far the most common engines used in small general aviation aircraft requiring up to 400 horsepower (300 kW) per engine. Aircraft that require more than 400 horsepower (300 kW) per engine tend to be powered by turbine engines . An H configuration engine is essentially a pair of horizontally opposed engines placed together, with
1521-633: A dive bomber almost as fast as the Mustang itself. By April 1943 USAAF Apaches were in Morocco supporting Operation Torch , and they continued bombing trains and gun emplacements northwards through Italy. When Soviet-backed North Korea attacked South Korea on June 25, 1950, their forces quickly routed the South Korean army which lacked tanks, anti-tank and heavy artillery. Its Air Force had 22 planes, none of which were fighters, or jets. During
1638-405: A few have been rocket powered and in recent years many small UAVs have used electric motors . In commercial aviation the major Western manufacturers of turbofan engines are Pratt & Whitney (a subsidiary of Raytheon Technologies ), General Electric , Rolls-Royce , and CFM International (a joint venture of Safran Aircraft Engines and General Electric). Russian manufacturers include
1755-618: A fighter bomber, where one tried skip-bombing a 1,000 lb (450 kg) bomb through the door of Field Marshal Günther von Kluge 's OB West HQ. A Lightning squadron also killed Admiral Isoroku Yamamoto over Bougainville in the Pacific acting on an Ultra intercept. The Republic P-47 Thunderbolt was a larger, evolutionary development of the P-43/P-44 fighter undertaken after the United States Army Air Forces observed Messerschmitt Bf 109s performing in
1872-805: A flag stuck into a shingle beach. Both WW1 fighter bombers were used with novice and experienced pilots. The best results were achieved with a vertical dive into the wind using the Aldis Sight to align the aircraft. But they were not considered good enough to justify the expected casualty rate. When war broke out in Europe, Western Allied Air Forces employed light twin-engined bombers in the tactical role for low-level attacks. These were found to be extremely vulnerable both to ground fire and to single-engine fighters. The German and Japanese Air Forces had chosen dive bombers which were similarly vulnerable. The Ilyushin Il-2
1989-408: A flat or boxer engine, has two banks of cylinders on opposite sides of a centrally located crankcase. The engine is either air-cooled or liquid-cooled, but air-cooled versions predominate. Opposed engines are mounted with the crankshaft horizontal in airplanes , but may be mounted with the crankshaft vertical in helicopters . Due to the cylinder layout, reciprocating forces tend to cancel, resulting in
2106-572: A fraction of the cost of traditional engines. Such conversions first took place in the early 1970s; and as of 10 December 2006 the National Transportation Safety Board has only seven reports of incidents involving aircraft with Mazda engines, and none of these is of a failure due to design or manufacturing flaws. The most common combustion cycle for aero engines is the four-stroke with spark ignition. Two-stroke spark ignition has also been used for small engines, while
2223-407: A free-turbine engine). A turboprop is very efficient when operated within the realm of cruise speeds it was designed for, which is typically 200 to 400 mph (320 to 640 km/h). Turboshaft engines are used primarily for helicopters and auxiliary power units . A turboshaft engine is similar to a turboprop in principle, but in a turboprop the propeller is supported by the engine and the engine
2340-456: A handful of types are still in production. The last airliner that used turbojets was the Concorde , whose Mach 2 airspeed permitted the engine to be highly efficient. A turbofan engine is much the same as a turbojet, but with an enlarged fan at the front that provides thrust in much the same way as a ducted propeller , resulting in improved fuel efficiency . Though the fan creates thrust like
2457-470: A larger airframe than the nimble Hurricane. At the prototype stage, there were problems with the new engines and stability of the aircraft itself, which led the Minister of Aircraft Production , Lord Beaverbrook to decree that production must focus on Spitfires and Hurricanes. The Typhoon disappointed as a fighter, especially at altitude but found its true niche as a fighter bomber from September 1942. It
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#17327839437162574-741: A last-ditch attempt to destroy Allied planes on the ground in support of the Battle of the Bulge . Allied fighter aircraft and fighter-bomber losses were downplayed, at the time. Seventeen airfields were targeted, of which seven lost many aircraft. The surprise was complete as the few Ultra intercepts had not been understood. At the worst hit, the Canadian base at Eindhoven , 26 Typhoons and 6 Spitfires were destroyed and another 30 Typhoons damaged. In total, 305 aircraft, mostly fighters, and fighter-bombers were destroyed and another 190 damaged. The Luftwaffe lost 143 pilots killed, 71 captured and 20 wounded, making
2691-485: A later version could carry eight rockets or 4,000 lb (1,800 kg) of bombs. The massive, powerful 18-cylinder Double Wasp engine weighed almost a ton—half as much again as the V12 Rolls-Royce Merlin and twice as much as the 9-cylinder Bristol Mercury that powered some heavy fighters . Increased engine power meant that many existing fighter designs could carry useful bomb loads, and adapt to
2808-537: A more powerful version of the Napier Sabre engine, giving a top speed of 432 miles per hour (695 km/h). At a low level, it was faster than any other Allied or German aircraft, but slower than the Spitfire above 22,000 ft (6,700 m). Fitted with four 20mm cannon it was a formidable fighter, respected even by Messerschmitt Me 262 jet fighter pilots as their most dangerous opponent. At its debut over
2925-569: A peak pressure of 30 MPa (300 bar). Although engine weight increases by 30%, aircraft fuel consumption is reduced by 15%. Sponsored by the European Commission under Framework 7 project LEMCOTEC , Bauhaus Luftfahrt, MTU Aero Engines and GKN Aerospace presented the concept in 2015, raising the overall engine pressure ratio to over 100 for a 15.2% fuel burn reduction compared to 2025 engines. On multi-engine aircraft, engine positions are numbered from left to right from
3042-478: A piston-engine with two 10 piston banks without a high-pressure turbine, increasing efficiency with non-stationary isochoric - isobaric combustion for higher peak pressures and temperatures. The 11,200 lb (49.7 kN) engine could power a 50-seat regional jet . Its cruise TSFC would be 11.5 g/kN/s (0.406 lb/lbf/hr) for an overall engine efficiency of 48.2%, for a burner temperature of 1,700 K (1,430 °C), an overall pressure ratio of 38 and
3159-424: A propeller, the surrounding duct frees it from many of the restrictions that limit propeller performance. This operation is a more efficient way to provide thrust than simply using the jet nozzle alone, and turbofans are more efficient than propellers in the transsonic range of aircraft speeds and can operate in the supersonic realm. A turbofan typically has extra turbine stages to turn the fan. Turbofans were among
3276-425: A search for replacement fuels for general aviation aircraft a priority for pilots’ organizations. Turbine engines and aircraft diesel engines burn various grades of jet fuel . Jet fuel is a relatively less volatile petroleum derivative based on kerosene , but certified to strict aviation standards, with additional additives. Model aircraft typically use nitro engines (also known as "glow engines" due to
3393-463: A single row of cylinders, as used in automotive language, but in aviation terms, the phrase "inline engine" also covers V-type and opposed engines (as described below), and is not limited to engines with a single row of cylinders. This is typically to differentiate them from radial engines . A straight engine typically has an even number of cylinders, but there are instances of three- and five-cylinder engines. The greatest advantage of an inline engine
3510-404: A smooth running engine. Opposed-type engines have high power-to-weight ratios because they have a comparatively small, lightweight crankcase. In addition, the compact cylinder arrangement reduces the engine's frontal area and allows a streamlined installation that minimizes aerodynamic drag. These engines always have an even number of cylinders, since a cylinder on one side of the crankcase "opposes"
3627-488: A specific prescribed role. Engine power grew dramatically during the early period of the war, roughly doubling between 1939 and 1943. The Bristol Blenheim , a typical light bomber of the opening stages of the war, was originally designed in 1934 as a fast civil transport to meet a challenge by Lord Rothermere , owner of the Daily Mail . It had two Bristol Mercury XV radial engines of 920 hp (690 kW) each,
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3744-523: A stable aircraft like the Typhoon. But soft targets were simpler. When the 51st Highland Division moved to block German panzers reaching Antwerp in the Battle of the Bulge Tommy Macpherson saw a half-track full of SS soldiers. All were uninjured, powerful men over 6 ft (180 cm) tall. All were dead, killed by the air blast from a Typhoon rocket. The Bristol Beaufighter was a long-range twin-engine heavy fighter derived from
3861-547: A target tug role, where it could match the speed of the German bombers whilst towing a drone. In 1934, the British Air Ministry called for a carrier aircraft that could combine the roles of the dive bomber and fighter, to save limited space on small carriers. The Blackburn Skua was not expected to encounter land-based fighters but was to intercept long-range bombers attacking the fleet and also to sink ships. As
3978-644: A two-seater, it could not fight the Messerschmitt Bf 109 on equal terms. But the second seat carried a radio operator with a homing device that could find the carrier even when it had moved, in foul North Sea weather. It achieved one of the first kills of the war, when three from HMS Ark Royal downed a German Dornier Do 18 flying boat over the North Sea. On April 10, 1940, 16 Skuas operating from RNAS Hatston in Orkney under Commander William Lucy sank
4095-421: A very fast radial engine fighter over France. First thought to be captured French Curtiss 75 Mohawks , they turned out to be Focke-Wulf Fw 190s , slightly faster and more heavily armed than the current Spitfire V. Kurt Tank had designed the aircraft when the Spitfire and Bf 109 were the fastest fighters flying; he called them racehorses, fast but fragile. As a former World War I cavalryman, Tank chose to design
4212-443: A warhorse. With a BMW 801 radial engine , wide-set undercarriage, and two 20mm cannons as well as machine guns it became a better fighter-bomber than either of the pure fighters. By mid-1942, the first of these "Jagdbombers" (literally "fighter" or "hunter" bomber, known for short as "Jabos") was operating over Kent . On October 31, 60 Fw 190s bombed Canterbury with only one aircraft lost, killing 32 civilians and injuring 116, in
4329-529: Is a heavily armoured two-seat single-engine ground-attack aircraft. It first flew a month later although few had reached the Soviet Air Force in time for Operation Barbarossa . Naval forces chose both torpedo and dive bombers. None of these could be considered as fighter bombers as they could not combat fighters. During the Battle of Britain , the Luftwaffe conducted fighter-bomber attacks on
4446-533: Is a pre-cooled engine under development. At the April 2018 ILA Berlin Air Show , Munich -based research institute de:Bauhaus Luftfahrt presented a high-efficiency composite cycle engine for 2050, combining a geared turbofan with a piston engine core. The 2.87 m diameter, 16-blade fan gives a 33.7 ultra-high bypass ratio , driven by a geared low-pressure turbine but the high-pressure compressor drive comes from
4563-449: Is a twin-spool engine, allowing only two different speeds for the turbines. Pulsejets are mechanically simple devices that—in a repeating cycle—draw air through a no-return valve at the front of the engine into a combustion chamber and ignite it. The combustion forces the exhaust gases out the back of the engine. It produces power as a series of pulses rather than as a steady output, hence the name. The only application of this type of engine
4680-490: Is above and behind. In the Cessna 337 Skymaster , a push-pull twin-engine airplane, engine No. 1 is the one at the front of the fuselage, while engine No. 2 is aft of the cabin. Aircraft reciprocating (piston) engines are typically designed to run on aviation gasoline . Avgas has a higher octane rating than automotive gasoline to allow higher compression ratios , power output, and efficiency at higher altitudes. Currently
4797-453: Is bolted to the airframe : in a turboshaft, the engine does not provide any direct physical support to the helicopter's rotors. The rotor is connected to a transmission which is bolted to the airframe, and the turboshaft engine drives the transmission. The distinction is seen by some as slim, as in some cases aircraft companies make both turboprop and turboshaft engines based on the same design. A number of electrically powered aircraft, such as
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4914-720: Is more common because it is difficult to get enough air-flow to cool the rear cylinders directly. Inline engines were common in early aircraft; one was used in the Wright Flyer , the aircraft that made the first controlled powered flight. However, the inherent disadvantages of the design soon became apparent, and the inline design was abandoned, becoming a rarity in modern aviation. For other configurations of aviation inline engine, such as X-engines , U-engines , H-engines , etc., see Inline engine (aeronautics) . Cylinders in this engine are arranged in two in-line banks, typically tilted 60–90 degrees apart from each other and driving
5031-430: Is of lesser concern, rocket engines can be useful because they produce very large amounts of thrust and weigh very little. A rocket turbine engine is a combination of two types of propulsion engines: a liquid-propellant rocket and a turbine jet engine. Its power-to-weight ratio is a little higher than a regular jet engine, and works at higher altitudes. For very high supersonic/low hypersonic flight speeds, inserting
5148-513: Is that it allows the aircraft to be designed with a low frontal area to minimize drag. If the engine crankshaft is located above the cylinders, it is called an inverted inline engine: this allows the propeller to be mounted high up to increase ground clearance, enabling shorter landing gear. The disadvantages of an inline engine include a poor power-to-weight ratio , because the crankcase and crankshaft are long and thus heavy. An in-line engine may be either air-cooled or liquid-cooled, but liquid-cooling
5265-414: The Battle of Britain . It was a massive aircraft built around the powerful Pratt & Whitney R-2800 Double Wasp engine and weighed up to eight tons with ordnance. The P-47 was twice as heavy and had four times the fuselage size of a Spitfire. Armed with eight .50 in (12.7 mm) M2 Browning machine guns it could outshoot any enemy fighter, and as a fighter-bomber, it could carry half the bomb load of
5382-664: The Bristol Beaufort torpedo bomber but with the 1,600 hp (1,200 kW) Bristol Hercules radial engine to give it a top speed 50 mph (80 km/h) faster. By late 1942 the Beaufighter was also capable of carrying torpedoes or rockets. The main user was RAF Coastal Command although it was also used in the Royal Australian Air Force with some aircraft assembled in Australia and by
5499-638: The German cruiser Königsberg which was tied to a mole in Bergen harbour. The Germans recorded five hits or near misses and as the ship started to sink, electric power failed, dooming the ship. The German cruiser Köln had departed during the night. With the failing of the Hawker Henley and the gradual fading of the Hawker Hurricane 's performance compared to the latest German fighters, it
5616-615: The Gestapo HQ in Oslo was attacked by four de Havilland Mosquitoes , which had flown over the North Sea below 100 ft (30 m) by dead reckoning navigation from RAF Leuchars , Scotland, carrying four 500 lb (230 kg) bombs each. The next day the RAF unveiled its new fast bomber. On December 31, 1944, the same aircraft was used against the same target, this time from RAF Peterhead in Scotland, flying high and diving onto
5733-631: The Normandy Beaches on D-Day +2, Tempests shot down three German fighters, without loss. Tempests supported the ambitious attempt to capture the bridge at Arnhem in Operation Market Garden in mid-September 1944. David C. Fairbanks , an American who joined the Royal Canadian Air Force was the top Tempest ace with 12 victories including an Arado Ar 234 jet bomber. General Henry H. Arnold , Chief of
5850-873: The North American F-100 Super Sabre and the McDonnell Douglas F-4 Phantom II , each of which was widely used during the Vietnam War . An example of a modern purpose-designed fighter bomber is the Sukhoi Su-34 . Aircraft engine An aircraft engine , often referred to as an aero engine , is the power component of an aircraft propulsion system . Aircraft using power components are referred to as powered flight . Most aircraft engines are either piston engines or gas turbines , although
5967-696: The North American F-86 Sabre was rushed to Korea to combat the MiG-15s. There is much debate as to which was the better fighter. Recent research suggests a 13-10 advantage to the Sabre against Russian pilots, but the US pilots were mostly WWII veterans whilst the Russians were often “volunteers” with only a few hours aloft. The Australians converted from Mustangs to Gloster Meteor fighter-bombers,
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#17327839437166084-527: The QinetiQ Zephyr , have been designed since the 1960s. Some are used as military drones . In France in late 2007, a conventional light aircraft powered by an 18 kW electric motor using lithium polymer batteries was flown, covering more than 50 kilometers (31 mi), the first electric airplane to receive a certificate of airworthiness . On 18 May 2020, the Pipistrel E-811 was
6201-580: The Rolls-Royce Tay 250 centrifugal-flow turbojet , an improved version of the Rolls-Royce Nene , built under licence by Hispano-Suiza , and rated at 28.0 kN (6,300 lbf) thrust. These three Mystère I prototypes led to two Mystère IIA prototypes, powered by the Tay and armed with four 20 mm (0.787 in) Hispano cannon ; and then four Mystère IIB prototypes, which traded
6318-590: The Royal Australian Air Force soon also flew across from Japan. Vought F4U Corsairs and Hawker Sea Furys from U.S., British and Australian carriers in the Yellow Sea and later from Korean airfields, also attacked the Pusan perimeter. The Sea Fury, a development of the Hawker Tempest had a Bristol Centaurus engine of 2,480 hp (1,850 kW) giving a 485 mph (781 km/h) top speed, one of
6435-684: The Rutan Quickie . The single-rotor engine was put into a Chevvron motor glider and into the Schleicher ASH motor-gliders. After the demise of MidWest, all rights were sold to Diamond of Austria, who have since developed a MkII version of the engine. As a cost-effective alternative to certified aircraft engines some Wankel engines, removed from automobiles and converted to aviation use, have been fitted in homebuilt experimental aircraft . Mazda units with outputs ranging from 100 horsepower (75 kW) to 300 horsepower (220 kW) can be
6552-567: The U.S. Navy . Difficulties with carrier landings meant that the first aircraft were used by the United States Marine Corps from Henderson Field, Guadalcanal from February 12, 1943. In its first combat action, the following day over Kahili airfield two Corsairs and eight other aircraft were lost when attacked by 50 Mitsubishi A6M Zeros . This became known as the St Valentine's Day massacre. Despite this initiation
6669-627: The USAAF . Over 30 Beaufighters flying from RAF Dallachy in Scotland from Australian, British, Canadian, and New Zealand squadrons attacked the German destroyer Z33 sheltering in Førde Fjord Norway. They were escorted by only 10 to 12 North American P-51 Mustangs . German destroyers escorted convoys of Swedish iron ore, which in winter were forced to creep along the Atlantic Coast by night, hiding deep inside fjords by day. Z33
6786-484: The United Engine Corporation , Aviadvigatel and Klimov . Aeroengine Corporation of China was formed in 2016 with the merger of several smaller companies. The largest manufacturer of turboprop engines for general aviation is Pratt & Whitney. General Electric announced in 2015 entrance into the market. In this section, for clarity, the term "inline engine" refers only to engines with
6903-514: The United States Army Air Forces , urged the adoption of the Mosquito by the U.S. but was overruled by those who felt that the as yet untried Lockheed P-38 Lightning also twin-engined, could fulfill the same role. Although Lightning got its name from the RAF, the British eventually rejected it. Too slow and cumbersome to match Bf 109s as an escort fighter over Germany, it did fly over Normandy as
7020-424: The gyroscopic effects of the heavy rotating engine produced handling problems in aircraft and the engines also consumed large amounts of oil since they used total loss lubrication, the oil being mixed with the fuel and ejected with the exhaust gases. Castor oil was used for lubrication, since it is not soluble in petrol, and the resultant fumes were nauseating to the pilots. Engine designers had always been aware of
7137-424: The oxygen necessary for fuel combustion comes from the air, while rockets carry an oxidizer (usually oxygen in some form) as part of the fuel load, permitting their use in space. A turbojet is a type of gas turbine engine that was originally developed for military fighters during World War II . A turbojet is the simplest of all aircraft gas turbines. It consists of a compressor to draw air in and compress it,
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#17327839437167254-528: The 1950s and 1960s, as new jet engines dramatically improved the power of even the smallest fighter designs. Many aircraft initially designed as fighters or interceptors found themselves in the fighter-bomber role at some point in their career. Notable among these is the Lockheed F-104 Starfighter , first designed as a high-performance day fighter and then adapted to the nuclear strike role for European use. Other U.S. examples include
7371-764: The Clerget 14F Diesel radial engine (1939) has the same power to weight ratio as a gasoline radial. Improvements in Diesel technology in automobiles (leading to much better power-weight ratios), the Diesel's much better fuel efficiency and the high relative taxation of AVGAS compared to Jet A1 in Europe have all seen a revival of interest in the use of diesels for aircraft. Thielert Aircraft Engines converted Mercedes Diesel automotive engines, certified them for aircraft use, and became an OEM provider to Diamond Aviation for their light twin. Financial problems have plagued Thielert, so Diamond's affiliate — Austro Engine — developed
7488-756: The Corsair soon proved to be an effective fighter bomber, mostly flown by the Marine Corps, but also by the United States Navy , Fleet Air Arm and Royal New Zealand Air Force in the Pacific theater. When the British Purchasing Commission invited James H. Kindelberger , President of North American Aviation , to assemble the Curtiss P-40 Warhawk in an underutilized plant, he promised a better fighter on
7605-545: The French and Belgian coasts, targeting mostly oil and gas works. Losses were heavy, often more than the numbers of enemy fighters destroyed. By May 1942 Hurricane IICs with 40-imperial-gallon (180 L) drop tanks were intruding at night over France. On the night of May 4–5, Czech pilot Karel Kuttelwascher flying from RAF Tangmere with No 1 Squadron shot down three Dornier Do 17s as they slowed to land at Saint-André-de-Bohon after raiding England. On September 25, 1942,
7722-595: The Germans, only 10 were found to be due to rocket-firing Typhoons. At Mortain, where the German counter-offensive Operation Lüttich came within 2 miles (3.2 km) of cutting through US forces to Avranches , Typhoons destroyed 9 of 46 tanks lost but were more effective against unarmoured vehicles and troops and cause the armoured vehicles to seek cover. General Dwight D. Eisenhower , the Supreme Allied Commander, said "The chief credit in smashing
7839-400: The Mosquito I am yellow and green with envy. (The British) have the geniuses and we have the nincompoops.” Initially used for high-level photo-reconnaissance, the Mosquito was adapted to precision bombing, night fighter, and fighter bomber roles. It was built in Canada and Australia as well as the UK. Fitted with a British Army Ordnance QF 6 pounder (57 mm) gun it could sink U-boats found on
7956-416: The United Kingdom from September to December 1940. A larger fighter-bomber campaign was conducted against the UK from March 1942 until June 1943. These operations were successful in tying down Allied resources at a relatively low cost to the Luftwaffe, but the British Government regarded the campaign as a nuisance given the small scale of the individual raids. In August 1941, RAF pilots reported encountering
8073-400: The Wankel engine has been used in motor gliders where the compactness, light weight, and smoothness are crucially important. The now-defunct Staverton-based firm MidWest designed and produced single- and twin-rotor aero engines, the MidWest AE series . These engines were developed from the motor in the Norton Classic motorcycle . The twin-rotor version was fitted into ARV Super2s and
8190-485: The afterburning Atar 101F , with an afterburning thrust of 37.3 kN (8,400 lbf). The French Air Force ordered 150 Mystère IICs, with the first production machine flying in June 1954, being delivered in October of that year. The production aircraft featured the twin 30 mm (1.181 in) DEFA cannon , an Atar 101D turbojet with 29.4 kN (6,600 lbf) thrust, increased tail sweep, and revised intake trunking and internal fuel tank arrangement. Top speed
8307-950: The better Dassault Mystère IV A was flying. The Mystère IIC was very much an interim type, though it did persist in the training role until 1963. There were no foreign buyers for the Mystère II. As noted, the Israelis wanted to buy 24 but changed their minds and bought Mystère IVAs instead. It appears that the Mystère II was never used in combat. Data from The Complete Book of Fighters Green, William; Gordon Swanborough (1997). The Complete Book of Fighters . London: Salamander Books Limited. p. 148. ISBN 1-85833-777-1 . and "Dassault MD.452 Mystere Single-Seat, Single-Engine Fighter / Fighter-Bomber Aircraft" . www.militaryfactory.com . Retrieved 16 June 2024 . General characteristics Performance Armament 2 x 30mm DEFA internal cannons Related development Aircraft of comparable role, configuration, and era Related lists The initial version of this article
8424-473: The building. In February 1941 the Mosquito with two Rolls-Royce Merlin engines and a streamlined wooden fuselage achieved 392 mph (631 km/h), 30 mph (48 km/h) faster than the current Spitfire. It was used on all kinds of missions, including silencing Hermann Göring 's Berlin Nazi anniversary broadcast on January 20, 1943, leading him to tell Erhard Milch, Air Inspector General that “when I see
8541-500: The compression-ignition diesel engine is seldom used. Starting in the 1930s attempts were made to produce a practical aircraft diesel engine . In general, Diesel engines are more reliable and much better suited to running for long periods of time at medium power settings. The lightweight alloys of the 1930s were not up to the task of handling the much higher compression ratios of diesel engines, so they generally had poor power-to-weight ratios and were uncommon for that reason, although
8658-593: The cylinders arranged evenly around the crankshaft, although some early engines, sometimes called semi-radials or fan configuration engines, had an uneven arrangement. The best known engine of this type is the Anzani engine, which was fitted to the Bleriot XI used for the first flight across the English Channel in 1909. This arrangement had the drawback of needing a heavy counterbalance for the crankshaft, but
8775-486: The cylinders in a circle around the crankcase, as in a radial engine, (see above), but the crankshaft is fixed to the airframe and the propeller is fixed to the engine case, so that the crankcase and cylinders rotate. The advantage of this arrangement is that a satisfactory flow of cooling air is maintained even at low airspeeds, retaining the weight advantage and simplicity of a conventional air-cooled engine without one of their major drawbacks. The first practical rotary engine
8892-488: The enemy's spearhead, however, must go to the rocket-firing Typhoon aircraft of the Second Tactical Air Force . The result of the strafing was that the enemy attack was effectively brought to a halt, and a threat was turned into a great victory". The disparity between claims and actual destruction at about 25-1 owed much to the difficulty of hitting a fast-moving tank with an unguided rocket, even from
9009-581: The engine core is the bypass ratio. Low-bypass engines are preferred for military applications such as fighters due to high thrust-to-weight ratio, while high-bypass engines are preferred for civil use for good fuel efficiency and low noise. High-bypass turbofans are usually most efficient when the aircraft is traveling at 500 to 550 miles per hour (800 to 890 kilometres per hour), the cruise speed of most large airliners. Low-bypass turbofans can reach supersonic speeds, though normally only when fitted with afterburners . The term advanced technology engine refers to
9126-438: The engine works by having a coiled pipe in the combustion chamber that superheats the fuel (propane) before being injected into the air-fuel inlet. In the combustion chamber, the fuel/air mixture ignites and burns, creating thrust as it leaves through the exhaust pipe. Induction and compression of the fuel/air mixture is done both by the pressure of propane as it is injected, along with the sound waves created by combustion acting on
9243-415: The engine's heat-radiating surfaces to the air and tends to cancel reciprocating forces, radials tend to cool evenly and run smoothly. The lower cylinders, which are under the crankcase, may collect oil when the engine has been stopped for an extended period. If this oil is not cleared from the cylinders prior to starting the engine, serious damage due to hydrostatic lock may occur. Most radial engines have
9360-489: The fastest piston-engined aircraft ever built. Initially, United Nations air forces using piston-engined fighter-bombers and straight wing jet fighters easily drove the North Koreans out of the sky and so disrupted logistics and hence the attack on Pusan. All changed when the Soviet Air Force intervened with swept-wing Mikoyan-Gurevich MiG-15s flown by Russian pilots on November 1. The planes had Korean markings and
9477-577: The fighter-bomber role, especially where longer ranges were needed for naval strikes. Examples include the Lockheed P-38 Lightning , the Bristol Beaufighter (developed from a torpedo bomber ), and de Havilland Mosquito (developed from an unarmed fast bomber). The Beaufighter MkV had a Boulton-Paul turret with four 0.303 in (7.7 mm) machine guns mounted aft of the cockpit but only two were built. Bristol's Blenheim
9594-580: The fighter-bomber role. Notable examples include the Focke-Wulf Fw 190 , Hawker Typhoon and Republic P-47 Thunderbolt . Various bombing tactics and techniques could also be used: some designs were intended for high-level bombing , others for the low-level semi-horizontal bombing, or even for low-level steep dive bombing as exemplified by the Blackburn Skua and North American A-36 Apache . Larger twin-engined aircraft were also used in
9711-457: The first Allied jet fighter of WWII but no match for a MiG-15. It was pressed into combat but after four were lost when the squadron was bounced by 40 Mig-15s, reverted to ground attack, carrying 16 60 lb (27 kg) rockets. Although Meteors shot down 6 MiG-15s, 30 were lost, but mainly to ground fire. Both Corsairs and Sea Furies also shot down MiG-15s, but were vulnerable to the faster jet. Fighter-bombers became increasingly important in
9828-606: The first electric aircraft engine to be awarded a type certificate by EASA for use in general aviation . The E-811 powers the Pipistrel Velis Electro . Limited experiments with solar electric propulsion have been performed, notably the manned Solar Challenger and Solar Impulse and the unmanned NASA Pathfinder aircraft. Many big companies, such as Siemens, are developing high performance electric engines for aircraft use, also, SAE shows new developments in elements as pure Copper core electric motors with
9945-399: The first engines to use multiple spools —concentric shafts that are free to rotate at their own speed—to let the engine react more quickly to changing power requirements. Turbofans are coarsely split into low-bypass and high-bypass categories. Bypass air flows through the fan, but around the jet core, not mixing with fuel and burning. The ratio of this air to the amount of air flowing through
10062-526: The four 20 mm (0.787 in) cannon for two 30 mm (1.181 in) DEFA revolver-type cannon. A Mystère IIA was the first French aircraft to break Mach 1 in controlled flight (in a dive), on 28 October 1951. The eleven preproduction machines that followed were designated Mystère IIC , nine of which were fitted with the SNECMA Atar 101 C axial-flow turbojet, rated at 24.5 kN (5,500 lbf) thrust, while two were experimentally fitted with
10179-497: The intake stacks. It was intended as a power plant for personal helicopters and compact aircraft such as Microlights. A few aircraft have used rocket engines for main thrust or attitude control, notably the Bell X-1 and North American X-15 . Rocket engines are not used for most aircraft as the energy and propellant efficiency is very poor, but have been employed for short bursts of speed and takeoff. Where fuel/propellant efficiency
10296-640: The invasion. USAF North American F-82 Twin Mustangs had the range to reach the front line from Japanese bases. The last piston-engined aircraft, produced in the U.S., it looked like two Mustangs, with two pilots in separate fuselages, bolted together. Initially intended to escort bombers over Japan from remote Pacific island bases, hence its long-range, it missed WWII and first saw action in Korea. Plain North American P-51 Mustangs of
10413-751: The jets of its main British and US opponents, which used the older Rolls-Royce Derwent design. Only the Navy Grumman F9F Panther used a version of the Nene and could match the MiG-15, accounting for seven during November. Daylight heavy bomber raids over North Korea ceased and the Lockheed F-80 Shooting Star and its all-weather variant the Lockheed F-94 Starfire were focused on bombing missions whilst
10530-736: The largest raid since the Blitz . Flying at sea level, under the radar, these raids were hard to intercept. The Jabos reached the Eastern Front in time to bomb Russian positions in Stalingrad . By July 1943 Fw 190s were replacing the vulnerable Stukas over the Battle of Kursk : although winning the air war, they were unable to prevent subsequent Red Army advances. On New Year's Day 1945 in Operation Bodenplatte , over 1,000 aircraft (including more than 600 Fw 190s) launched
10647-430: The many limitations of the rotary engine so when the static style engines became more reliable and gave better specific weights and fuel consumption, the days of the rotary engine were numbered. The Wankel is a type of rotary engine. The Wankel engine is about one half the weight and size of a traditional four-stroke cycle piston engine of equal power output, and much lower in complexity. In an aircraft application,
10764-578: The massive, seven-ton USAAF Republic P-47 Thunderbolt —a single Pratt & Whitney R-2800 Double Wasp radial engine of 2,000 hp (1,500 kW) in a much smaller, simpler and less expensive single-seat aircraft, and was the first aircraft design to ever fly with the Double Wasp engine in May 1940. With less airframe and crew to lift, the Corsair's ordnance load was either four High Velocity Aircraft Rockets or 2,000 lb (910 kg) of bombs;
10881-433: The modern generation of jet engines. The principle is that a turbine engine will function more efficiently if the various sets of turbines can revolve at their individual optimum speeds, instead of at the same speed. The true advanced technology engine has a triple spool, meaning that instead of having a single drive shaft, there are three, in order that the three sets of blades may revolve at different speeds. An interim state
10998-463: The most common Avgas is 100LL. This refers to the octane rating (100 octane) and the lead content (LL = low lead, relative to the historic levels of lead in pre-regulation Avgas). Refineries blend Avgas with tetraethyllead (TEL) to achieve these high octane ratings, a practice that governments no longer permit for gasoline intended for road vehicles. The shrinking supply of TEL and the possibility of environmental legislation banning its use have made
11115-605: The most successful Allied aircraft of the First World War with 1,294 enemy aircraft downed, was losing its edge by 1918, especially over 12,000 ft (3,700 m). During the final German offensive in March 1918, it dropped 25 lb (11 kg) Cooper bombs on advancing columns: whilst puny by later standards, the four fragmentation bombs carried by a Camel could cause serious injuries to exposed troops. Pilot casualties were also high. The Royal Aircraft Factory S.E.5 .
11232-404: The new AE300 turbodiesel , also based on a Mercedes engine. Competing new Diesel engines may bring fuel efficiency and lead-free emissions to small aircraft, representing the biggest change in light aircraft engines in decades. While military fighters require very high speeds, many civil airplanes do not. Yet, civil aircraft designers wanted to benefit from the high power and low maintenance that
11349-553: The pilots had been taught a few Korean words, in a thin sham that the USSR was not fighting. The MiG-15 used captured German swept wing technology and tools and British jet engines, 25 of which had been a gift from Stafford Cripps the president of the Board of Trade and were quickly copied. Josef Stalin remarked “What fool will sell us his secrets?” The MiG's Rolls-Royce Nene had 5,000 lbf (2,300 kgf) thrust, twice as much as
11466-483: The point of view of the pilot looking forward, so for example on a four-engine aircraft such as the Boeing 747 , engine No. 1 is on the left side, farthest from the fuselage, while engine No. 3 is on the right side nearest to the fuselage. In the case of the twin-engine English Electric Lightning , which has two fuselage-mounted jet engines one above the other, engine No. 1 is below and to the front of engine No. 2, which
11583-485: The power-to-weight ratio is very important, making the Wankel engine a good choice. Because the engine is typically constructed with an aluminium housing and a steel rotor, and aluminium expands more than steel when heated, a Wankel engine does not seize when overheated, unlike a piston engine. This is an important safety factor for aeronautical use. Considerable development of these designs started after World War II , but at
11700-610: The same timing. The resulting North American P-51 Mustang powered by a Packard-built Rolls-Royce Merlin engine became the outstanding long-range fighter of the war. When Lend-lease funding for the RAF Mustangs was exhausted, Kindleberger tried to interest the USAAC but no funds were available for a fighter; instead, the Mustang was fitted with dive brakes and emerged as the North American A-36 Apache ,
11817-473: The surface. On April 9, 1945, three were sunk en route to Norway, and in the following month, Mosquitos sank two more. The Hawker Typhoon was being designed as a replacement for the Hurricane in March 1937 before production had even started. The reason was to take advantage of the new 2,000 hp (1,500 kW) engines then being planned, either the Napier Sabre or Rolls-Royce Vulture which required
11934-439: The time the aircraft industry favored the use of turbine engines. It was believed that turbojet or turboprop engines could power all aircraft, from the largest to smallest designs. The Wankel engine did not find many applications in aircraft, but was used by Mazda in a popular line of sports cars . The French company Citroën had developed Wankel powered RE-2 [ fr ] helicopter in 1970's. In modern times
12051-414: The two crankshafts geared together. This type of engine has one or more rows of cylinders arranged around a centrally located crankcase . Each row generally has an odd number of cylinders to produce smooth operation. A radial engine has only one crank throw per row and a relatively small crankcase, resulting in a favorable power-to-weight ratio . Because the cylinder arrangement exposes a large amount of
12168-518: The worst one-day loss in its history; it never recovered. The Bristol Blenheim and Douglas A-20 Havoc (which the RAF called Boston) were used as night fighters during the Blitz , as they could carry the heavy early airborne radars. The Hawker Henley , a two-seat version of the Battle of Britain -winning Hawker Hurricane , was designed as a dive bomber. It might have proved to be a capable fighter-bomber but overheating of its Rolls-Royce Merlin engine in this installation led to its relegation to
12285-399: The years after the war, the drawbacks of the turbojet gradually became apparent. Below about Mach 2, turbojets are very fuel inefficient and create tremendous amounts of noise. Early designs also respond very slowly to power changes, a fact that killed many experienced pilots when they attempted the transition to jets. These drawbacks eventually led to the downfall of the pure turbojet, and only
12402-534: Was 1,030 km/h (560 kn; 640 mph) at low level. Details of external stores are unclear, but a reasonable assumption would be that they were similar to those of the Ouragan. The last Mystère IIC was delivered in 1957, by which time the type was already being relegated to advanced training duties. Aircraft design was moving very quickly in the 1950s and even as the Mystère IIC was becoming operational,
12519-534: Was based on a public domain article from Greg Goebel's Vectorsite . Fighter-bomber Although still used, the term fighter-bomber has less significance since the introduction of rockets and guided missiles into aerial warfare . Modern aircraft with similar duties are now typically called multirole combat aircraft or strike fighters . Prior to World War II , general limitations in available engine and aeronautical technology required that each proposed military aircraft have its design tailored to
12636-653: Was damaged and February 9, 1945, became known as Black Friday . Typhoons were involved in one of the worst tragedies at the end of the war when four squadrons attacked the luxury liners SS Deutschland and the SS Cap Arcona and two smaller ships SS Athen and SS Thielbek moored off Neustadt in Lübeck Bay The Cap Arcona had 4,500 concentration camp inmates and the Thielbek another 2,800 as well as SS Guards. The Deutschland had
12753-487: Was even pushed into service as a fighter during the Battle of Britain but it was not fast enough. Equipped with an early Airborne Interception (AI) radar set, however, it proved to be an effective night fighter. The first single-seat fighters to drop bombs were on the Western Front , when fighter patrols were issued with bombs and ordered to drop them at random if they met no German fighters. The Sopwith Camel ,
12870-547: Was fitted with racks to carry two 500 lb (230 kg) and then two 1,000 lb (450 kg) bombs. By September 1943 it was fitted with eight RP-3 rockets each with a 60 lb (27 kg) warhead, equivalent to the power of a naval destroyer's broadside. Claims of German tanks destroyed by rocket-armed Typhoons in Normandy after D-Day were exaggerated. In Operation Goodwood , the attempt by British and Canadian forces to surround Caen of 75 tanks recorded as lost by
12987-566: Was intended to have two machine guns jutting through the cockpit floor so as to spray trenches with bullets as it passed low overhead. But this did not work and it was fitted with four Cooper bombs, instead. It was ordered in very large numbers, but most were canceled after the Armistice . In February and April 1918 the Royal Flying Corps conducted bombing tests at Orfordness , Suffolk dropping dummy bombs at various dive angles at
13104-567: Was modified to carry four 20mm cannon and two 500 lb (230 kg) bombs; once bombs were jettisoned the aircraft could put up a reasonable fight. Inevitably the type became known in the RAF as the “Hurribomber”, reaching squadrons in June 1941. It was soon found that it was hardly possible to hit fast-moving Panzers in the Western Desert , with bombs and cannon fire-making little impact on their armour. Daylight bombing raids were made on
13221-415: Was moored close to the vertical cliffside of the fjords so Beaufighters had to attack singly with rockets without the normal tactic of having simultaneous attacks by other Beaufighters firing cannon at the numerous flak gunners. Twelve Focke-Wulf Fw 190s surprised the Mustangs and Norway's biggest ever air battle was soon raging. Nine Beaufighters and one Mustang were lost as were five Fw 190s. The destroyer
13338-572: Was the Gnome Omega designed by the Seguin brothers and first flown in 1909. Its relative reliability and good power to weight ratio changed aviation dramatically. Before the first World War most speed records were gained using Gnome-engined aircraft, and in the early years of the war rotary engines were dominant in aircraft types for which speed and agility were paramount. To increase power, engines with two rows of cylinders were built. However,
13455-426: Was the German unmanned V1 flying bomb of World War II . Though the same engines were also used experimentally for ersatz fighter aircraft, the extremely loud noise generated by the engines caused mechanical damage to the airframe that was sufficient to make the idea unworkable. The Gluhareff Pressure Jet (or tip jet) is a type of jet engine that, like a valveless pulsejet, has no moving parts. Having no moving parts,
13572-474: Was used in the same role. The Royal Flying Corps received the first purpose-built fighter-bomber just as the war was ending. It was not called a fighter bomber at the time, but a Trench Fighter as that was what it was designed to attack. The Sopwith Salamander was based on the Sopwith Snipe fighter but had armour plating in the nose to protect the pilot and fuel system from ground fire. Originally it
13689-487: Was used to avoid the spark plugs oiling up. In military aircraft designs, the large frontal area of the engine acted as an extra layer of armor for the pilot. Also air-cooled engines, without vulnerable radiators, are slightly less prone to battle damage, and on occasion would continue running even with one or more cylinders shot away. However, the large frontal area also resulted in an aircraft with an aerodynamically inefficient increased frontal area. Rotary engines have
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