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113-618: Although the B5N was substantially faster and more capable than its Allied counterparts, the American Douglas TBD Devastator monoplane (the U.S. Navy's first all-metal, carrier-borne monoplane of any type with retracting gear), and the British Fairey Swordfish and Fairey Albacore torpedo biplanes, it was nearing obsolescence by 1941. Nevertheless, the B5N operated throughout the whole war, due to

226-413: A Type A midget submarine for transport to the waters off Oahu. The five I-boats left Kure Naval District on November 25, 1941. On December 6, they came to within 10 nmi (19 km; 12 mi) of the mouth of Pearl Harbor and launched their midget subs at about 01:00 local time on December 7. At 03:42 Hawaiian time, the minesweeper Condor spotted a midget submarine periscope southwest of

339-414: A " wheels-up " landing. A crew of three was normally carried beneath a large "greenhouse" canopy almost half the length of the aircraft. The pilot sat in front; a rear gunner/radio operator took the rearmost position, while the bombardier occupied the middle seat. During a bombing run, the bombardier lay prone, sliding into position under the pilot to sight through a window in the bottom of the fuselage, using

452-594: A Japanese task force (the Striking Force ) of six aircraft carriers – Akagi , Kaga , Sōryū , Hiryū , Shōkaku , and Zuikaku  – departed Hittokapu Bay on Etorofu (now Iterup) Island in the Kuril Islands , en route to a position northwest of Hawaii, intending to launch its 408 aircraft to attack Pearl Harbor: 360 for the two attack waves and 48 on defensive combat air patrol (CAP), including nine fighters from

565-618: A consequence, Japan needed access to strategically important resources (e.g. iron, oil) that could not be extracted at sufficient levels in the home islands. Although Japan had begun to take a hostile stance against the United States after the rejection of the Racial Equality Proposal , the relationship between the two countries was cordial enough that they remained trading partners. Tensions did not seriously grow until Japan's invasion of Manchuria in 1931 . Over

678-626: A coordinated attack on enemy carriers with Aichi D3A dive bombers. Ideally, dive bombers would help to suppress the ship's anti-aircraft fire , which improved the chances of success for the slow-flying torpedo bombers. During the Battle of the Eastern Solomons , the IJN tried to minimize losses to torpedo bombers and initially sent only the dive bombers to attack and cripple US carriers for the subsequent torpedo strike, this proved unsuccessful, as

791-413: A death trap for its crews: slow and hardly maneuverable, with poor armor for the era; its speed on a glide-bombing approach was a mere 200 mph (320 km/h), making it easy prey for fighters and defensive guns alike. The aerial torpedo could not even be released at speeds above 115 mph (185 km/h). Torpedo delivery requires a long, straight-line attack run, making the aircraft vulnerable, and

904-406: A development of the prototype's 800 hp (600 kW) Pratt & Whitney XR-1830-60/R-1830-1 . Other changes from the 1935 prototype included a revised engine cowling and a raised cockpit canopy to improve visibility. The XTBD had a flat canopy that was replaced on production models by a higher, domed canopy with a rollover bar. Other than requests by test pilots to improve pilot visibility,

1017-681: A hit during the Battle of Midway. The Avengers' only successes in 1942 would be against the light carrier Ryūjō and the battleship Hiei . In the initial part of the Pacific War, the poor performance of US torpedo bombers was due to the vulnerability of that type in general against fire from anti-aircraft artillery and defending fighters, plus the inexperience of American pilots and lack of coordinated fighter cover, as well as serious defects in US torpedoes which were not discovered and corrected until

1130-484: A land-based bomber . It carried a crew of three: pilot , navigator/bombardier/observer, and radio-operator/gunner. As with other IJN multi-seat aircraft, an individual bomber was commanded by the senior ranking crew member aboard, which could be the observer rather than the pilot. The initial model B5N1 first saw action in the Second Sino-Japanese War in 1938. The updated B5N2 played a major role in

1243-411: A newly assigned officer at the thinly manned Intercept Center, presumed it was the scheduled arrival of six B-17 bombers from California. The Japanese planes were approaching from a direction very close (only a few degrees difference) to the bombers, and while the operators had never seen a formation as large on radar, they neglected to tell Tyler of its size. Tyler, for security reasons, could not tell

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1356-469: A number of "firsts" for the US Navy. It was the first American carrier-based monoplane to be widely used, the first all-metal naval aircraft, the first with a completely enclosed cockpit, the first with power-actuated (hydraulically) folding wings . A semi-retractable landing gear was fitted, with the wheels protruding 10 in (250 mm) below the wings to potentially limit damage to the aircraft in

1469-539: A peace compromise. Striking the Pacific Fleet at anchor in Pearl Harbor had two distinct disadvantages: the targeted ships would be in very shallow water, so it would be relatively easy to salvage and possibly repair them, and most of the crews would survive the attack since many would be on shore leave or would be rescued from the harbor. A further important disadvantage was the absence of all three of

1582-536: A radio message from a midget submarine at 00:41 on December 8 claiming to have damaged one or more large warships inside Pearl Harbor. In 1992, 2000, and 2001 Hawaii Undersea Research Laboratory 's submersibles found the wreck of the fifth midget submarine lying in three parts outside Pearl Harbor. The wreck was in the debris field where much surplus American equipment had been dumped after the war, including vehicles and landing craft. Both of its torpedoes were missing. This correlates with reports of two torpedoes fired at

1695-704: A result of the competition included the Brewster SBA , the Vought SB2U Vindicator , and the Northrop BT-1 , the last of which would evolve into the Douglas SBD Dauntless . The Great Lakes XB2G , Great Lakes XTBG , Grumman XSBF , Hall XPTBH and Vought XSB3U were also tendered to the specification but were not developed beyond prototype status. The XTBD Devastator flew for the first time on 15 April 1935 while marking

1808-519: A strike on the enemy carriers immediately after they were discovered, rather than spending time assembling a well-coordinated attack involving the different types of aircraft – fighters, bombers, torpedo planes – reasoning that attacking the Japanese would prevent a counterstrike against the US carriers. The TBDs from Hornet and Enterprise lost contact with their escort and started their attacks without fighter protection. The Devastator proved to be

1921-591: A torpedo bomber to replace the Yokosuka B4Y . Internally designated Type K by Nakajima, it successfully competed with the Mitsubishi B5M for a production contract. The first prototype flew in January 1937 and was ordered into production soon afterwards with the full designation Type 97 Carrier Attack Bomber (九七式艦上攻撃機) ( kyū-nana-shiki kanjō kōgeki-ki or kankō for short). Combat experience during

2034-420: A vigorous debate inside the government over how, and indeed whether, to notify Washington of Japan's intention to break off negotiations and start a war, including a December 7 entry in the war diary saying, "[O]ur deceptive diplomacy is steadily proceeding toward success." Of this, Iguchi said, "The diary shows that the army and navy did not want to give any proper declaration of war, or indeed prior notice even of

2147-437: Is sometimes described as a declaration of war. While it was viewed by a number of senior American government and military officials as a very strong indicator negotiations were likely to be terminated and that war might break out at any moment, it neither declared war nor severed diplomatic relations. A declaration of war was printed on the front page of Japan's newspapers in the evening edition of December 8 (late December 7 in

2260-483: The 1940 British air attack on the Italian fleet at Taranto intensively. Over the next several months, pilots were trained, equipment was adapted, and intelligence was collected. Despite these preparations, Emperor Hirohito did not approve the attack plan until November 5, after the third of four Imperial Conferences called to consider the matter. At first, he hesitated to engage in war but eventually authorized

2373-564: The Attack on Pearl Harbor . One of the B5N2s carried Mitsuo Fuchida , the commander of the attack, with one high-level bomber from the carrier Hiryū credited with sinking the American battleship Arizona . The B5N2 torpedo bombers also sank the battleships West Virginia , California , Oklahoma and Utah . Five torpedo bombers were shot down in the first wave. Apart from this raid,

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2486-506: The Gilbert and Marshall Islands in 1942. Defensive armament consisted of a .30 in (7.62 mm) Browning machine gun for the rear gunner. Fitted in the starboard side of the cowling was either a .30 in (7.62 mm) or .50 in (12.7 mm) M2 Browning machine gun . The powerplant was a 850 hp (630 kW) Pratt & Whitney R-1830-64 Twin Wasp radial engine ,

2599-601: The Kido Butai ), with the attack on Kaneohe. A total of 353 Japanese planes reached Oahu in two waves. Slow, vulnerable torpedo bombers led the first wave, exploiting the first moments of surprise to attack the most important ships present (the battleships), while dive bombers attacked American air bases across Oahu, starting with Hickam Field , the largest, and Wheeler Field , the main United States Army Air Forces fighter base. The 171 planes in

2712-642: The Nanking Massacre swung Western public opinion sharply against Japan. The United States unsuccessfully proposed a joint action with the United Kingdom to blockade Japan. In 1938, following an appeal by President Roosevelt, American companies stopped providing Japan with implements of war. In 1940, Japan invaded French Indochina , attempting to stymie the flow of supplies reaching China. The United States halted shipments of airplanes, parts, machine tools , and aviation gasoline to Japan, which

2825-582: The Norden bombsight . The normal TBD offensive armament consisted of either a 1,935 lb (878 kg) Bliss-Leavitt Mark 13 aerial torpedo or a 1,000 lb (450 kg) bomb carried semi-recessed in the fuselage. Alternatively, three 500 lb (230 kg) general-purpose bombs (one under each wing root and one inside the fuselage), or twelve 100 lb (45 kg) fragmentation bombs (six under each wing root), could be carried. This weapons load would often be used when attacking Japanese targets on

2938-602: The North American T-6 Texan trainers, which were modified to represent Japanese aircraft for the movie Tora! Tora! Tora! , and have been used in a number of movies and airshows since to depict the aircraft. One recovered B5N2 is at the Wings Museum in Balcombe, West Sussex, UK. This large portion was recovered from the Kuril Islands by a British private collector in 2003. A B5N was unveiled at

3051-749: The Pacific Aviation Museum in Honolulu, Hawaii on 18 April 2016. Data from Japanese Aircraft of the Pacific War General characteristics Performance Armament Aircraft of comparable role, configuration, and era Related lists Douglas TBD Devastator The Douglas TBD Devastator was an American torpedo bomber of the United States Navy . Ordered in 1934, it first flew in 1935 and entered service in 1937. At that point, it

3164-585: The Philippines , taking both actions in the hope of discouraging Japanese aggression in the Far East. Because the Japanese high command was mistakenly certain any attack on the United Kingdom's Southeast Asian colonies , including Singapore, would bring the United States into the war, a devastating preventive strike appeared to be the only way to prevent American naval interference. An invasion of

3277-413: The Philippines , which they felt were close to or within their sphere of influence . At the same time, Japanese strategic thinkers believed that Japan needed economic self-sufficiency in order to wage modern war. The experiences of World War I had taught the Japanese that modern wars would be protracted, require total mobilization and create vulnerabilities for trade embargoes and encirclement. As

3390-567: The Second Sino-Japanese War revealed several weaknesses in the original B5N1 production model. These were mainly concerned with the lack of protection that the design offered its crew and its fuel tanks . Keen to maintain the high performance of the type, the Navy was reluctant to add weight in the form of armor, and instead looked to obtaining a faster version of the aircraft in the hopes of outrunning enemy fighters . The B5N2

3503-569: The Tripartite Pact with Japan, Germany and Italy each declared war on the United States, which responded with a declaration of war against Germany and Italy . While there were historical precedents for the unannounced military action by Japan, the lack of any formal warning, as required by the Hague Convention of 1907 , and the perception that the attack had been unprovoked, led then- President Franklin D. Roosevelt , in

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3616-611: The United States Asiatic Fleet , was given orders to that effect. The United States finally ceased oil exports to Japan in July 1941, following the seizure of French Indochina after the Fall of France , in part because of new American restrictions on domestic oil consumption. Because of this decision, Japan proceeded with plans to take the oil-rich Dutch East Indies . On August 17, Roosevelt warned Japan that America

3729-443: The light cruiser St. Louis at 10:04 at the entrance of Pearl Harbor, and a possible torpedo fired at destroyer Helm at 08:21. There is dispute over this official chain of events though. The "torpedo" that St. Louis saw was also reportedly a porpoising minesweeping float being towed by the destroyer Boggs . Some historians and naval architects theorise that a photo taken by a Japanese naval aviator of Battleship Row during

3842-518: The message —  1:00   p.m. on a Sunday, which was 7:30   a.m. in Hawaii ;—  and attempted to alert Pearl Harbor. But due to communication problems the warning was not delivered before the attack. The first attack wave of 183 airplanes, led by Commander Mitsuo Fuchida , was launched north of Oahu. Six airplanes failed to launch due to technical difficulties. The first wave included three groups of airplanes: As

3955-483: The 1940 Vinson-Walsh Act erased any chance of victory. Third, to deliver a blow to America's ability to mobilize its forces in the Pacific, battleships were chosen as the main targets, since they were the prestige ships of navies at the time. Finally, it was hoped that the attack would undermine American morale to such an extent that the American government would drop its demands contrary to Japanese interests and seek

4068-704: The American-held Philippines , Guam , and Wake Island and on the British Empire in Malaya , Singapore , and Hong Kong . From the Japanese point of view, it was seen as a preemptive strike "before the oil gauge ran empty." Preliminary planning for an attack on Pearl Harbor to protect the move into the "Southern Resource Area", the Japanese term for the Dutch East Indies and Southeast Asia generally, began early in 1941 under

4181-507: The Americans killed or wounded during the attack were legally non-combatants, given that there was no state of war when the attack occurred. Of the American fatalities, nearly half were due to the explosion of Arizona 's forward magazine after she was hit by a modified 16-inch (410 mm) shell. Author Craig Nelson wrote that the vast majority of the U.S. sailors killed at Pearl Harbor were junior enlisted personnel. "The officers of

4294-669: The Americans, and were not necessary. Fleet composition and preparedness information in Pearl Harbor were already known from the reports of the Japanese spy Takeo Yoshikawa . A report of the absence of the American fleet at Lahaina anchorage off Maui was received from the Tone ' s floatplane and the fleet submarine I-72 . Another four scout planes patrolled the area between the Japanese carrier force (the Kidō Butai ) and Niihau , to detect any counterattack. Fleet submarines I-16 , I-18 , I-20 , I-22 , and I-24 each embarked

4407-623: The Devastator's dismal performance was later attributed to the many well-documented defects in the US Mark 13 torpedo , the aircraft was withdrawn from frontline service after Midway, being replaced by the Grumman TBF Avenger . The Douglas XTBD-1 was ordered on 30 June 1934 after being one of the winners of a US Navy competition for new bombers to operate from its aircraft carriers. Other aircraft also ordered for production as

4520-550: The Devastator, most notably the disastrous attack by VT-8 , including its only survivor, Ensign George Gay , using his plane's seat cushion to conceal himself from the Japanese as he watched the SBDs bomb the IJN Carrier force. Aircraft of comparable role, configuration, and era Related lists Attack on Pearl Harbor Japanese victory 1941 1942 Second Sino-Japanese War The attack on Pearl Harbor

4633-557: The IJN carrier forces. The Navy immediately withdrew the 39 remaining TBDs from frontline units after the debacle at Midway. The surviving Devastators in VT-4 and VT-7 remained in service briefly in the Atlantic and in training squadrons until 1944. Many were relegated to training duties for pilots and mechanics or were destroyed following use as instructional airframes for firefighting training. By late 1944, no TBD Devastators were left in

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4746-651: The Marshall and Gilbert Islands, Wake and Marcus Islands , while TBDs from Yorktown and Lexington struck Japanese shipping off New Guinea on 10 March. In the Battle of the Coral Sea Devastators helped sink the Japanese aircraft carrier Shōhō on 7 May, but failed to hit another carrier, the Shōkaku , the next day. Faults were discovered with the Mark 13 torpedo at this point. Many were seen to hit

4859-471: The Navy all lived in houses and the junior people were the ones on the boats, so pretty much all of the people who died in the direct line of the attack were very junior people", Nelson said. "So everyone is about 17 or 18 whose story is told there." Among the notable civilian casualties were nine Honolulu Fire Department firefighters who responded to Hickam Field during the bombing in Honolulu, becoming

4972-556: The Pacific Fleet from interfering with the Japanese conquest of the Dutch East Indies and Malaya and enabling Japan to conquer Southeast Asia without interference. The leaders of the Imperial Japanese Navy (IJN) ascribed to Alfred Thayer Mahan 's " decisive battle " doctrine, especially that of destroying the maximum number of battleships. Second, it was hoped to buy time for Japan to consolidate its position and increase its naval strength before shipbuilding authorized by

5085-459: The Pacific Fleet's aircraft carriers ( Enterprise , Lexington , and Saratoga ). Despite these concerns, Yamamoto decided to press ahead. Japanese confidence in their ability to win a short war meant that other targets in the harbor, especially the navy yard, oil tank farms and submarine base, were left unscathed, since by their thinking the war would be over before the influence of these facilities would be felt. On November 26, 1941,

5198-580: The Pearl Harbor entrance buoy and alerted the destroyer Ward . The midget may have entered Pearl Harbor. However, Ward sank another midget submarine at 06:37 in the first American shots in the Pacific Theater. A midget submarine on the north side of Ford Island missed the seaplane tender Curtiss with her first torpedo and missed the attacking destroyer Monaghan with her other one before being sunk by Monaghan at 08:43. A third midget submarine, Ha-19 , grounded twice, once outside

5311-589: The Pearl Harbor strike despite dissent from certain advisors. Final authorization was not given by the emperor until December 1, after a majority of Japanese leaders advised him the Hull note would "destroy the fruits of the China incident, endanger Manchukuo and undermine Japanese control of Korea". Before the attack, he became more involved in military matters, even joining the Conference of Military Councillors, which

5424-520: The Philippines was also considered necessary by Japanese war planners. The American War Plan Orange had envisioned defending the Philippines with an elite force of 40,000 men; this option was never implemented due to opposition from Douglas MacArthur , who felt he would need a force ten times that size. By 1941, American planners expected to have to abandon the Philippines at the outbreak of war. Late that year, Admiral Thomas C. Hart , commander of

5537-580: The US Navy inventory. The original prototype finished its career at NAS Norman , Oklahoma ; the last TBD in the US Navy was used by the Commander of Fleet Air Activities-West Coast. When his TBD was scrapped in November 1944, there were no more. None survived the war and there are none known to exist on dry land today. In fairness to the Devastator, the newer TBF Avengers were similarly ineffective in 1942, losing five out of six aircraft without scoring

5650-538: The US entered World War II . Attrition had by then reduced their numbers to just over 100 aircraft. When the US Navy assigned popular names to its aircraft in late 1941, the TBD became the Devastator , although its nickname "torpecker" was still commonly used. In the early days of the Pacific war, the TBD acquitted itself well during February and March 1942, with TBDs from Enterprise and Yorktown attacking targets in

5763-533: The United States end its sanctions against Japan , cease aiding China in the Second Sino-Japanese War , and allow Japan to access the resources of the Dutch East Indies . Anticipating a negative response, Japan sent out its naval attack groups in November 1941 just prior to receiving the Hull note —which states the United States desire that Japan withdraw from China and French Indochina . Japan intended

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5876-603: The United States), but not delivered to the American government until the day after the attack. For decades, conventional wisdom held that Japan attacked without first formally breaking diplomatic relations only because of accidents and bumbling that delayed the delivery of a document hinting at war to Washington. In 1999, however, Takeo Iguchi, a professor of law and international relations at International Christian University in Tokyo, discovered documents that pointed to

5989-531: The United States, United Kingdom, and Netherlands supplied one million U.S. gallons (3.8 million liters) of aviation fuel, lifted their sanctions against Japan, and ceased aid to China. The American counter-proposal of November 26 (November 27 in Japan), the Hull note , required Japan to completely evacuate China without conditions and conclude non-aggression pacts with Pacific powers. On November 26 in Japan,

6102-514: The aircraft carriers and return to combat. Fighters were to assume CAP duties where needed, especially over American airfields. Before the attack commenced, the Imperial Japanese Navy launched reconnaissance floatplanes from heavy cruisers Chikuma and Tone , to scout Oahu and Lahaina Roads, Maui, respectively, with orders to report on American fleet composition and location. Reconnaissance aircraft flights risked alerting

6215-766: The attack as a preventive action. Its aim was to prevent the United States Pacific Fleet from interfering with its planned military actions in Southeast Asia against overseas territories of the United Kingdom , the Netherlands , and the United States. Over the course of seven hours, Japan conducted coordinated attacks on the U.S.-held Philippines , Guam , and Wake Island ; and on the British Empire in Malaya , Singapore , and Hong Kong . The attack on Pearl Harbor started at 7:48   a.m. Hawaiian time (6:18   p.m. GMT). The base

6328-407: The attack on Pearl Harbor that was declassified in the 1990s and publicized in the 2000s to the public, shows the fifth midget submarine firing a torpedo at West Virginia and another at Oklahoma . These torpedoes were twice the size of the aerial torpedoes so it was possible that both torpedoes heavily contributed to the sinkings of both ships and especially helped to capsize Oklahoma as Oklahoma

6441-410: The attack. Ammunition lockers were locked, aircraft parked wingtip to wingtip in the open to prevent sabotage, guns unmanned (none of the Navy's 5"/38s , only a quarter of its machine guns, and only four of 31 Army batteries got in action). Despite this low alert status , many American military personnel responded effectively during the attack. Ensign Joseph Taussig Jr. , aboard Nevada , commanded

6554-682: The auspices of Admiral Isoroku Yamamoto , then commanding Japan's Combined Fleet . He won assent to formal planning and training for an attack from the Imperial Japanese Navy General Staff only after much contention with Naval Headquarters, including a threat to resign his command. Full-scale planning was underway by early spring 1941, primarily by Rear Admiral Ryūnosuke Kusaka , with assistance from Commander Minoru Genda and Yamamoto's Deputy Chief of Staff, Captain Kameto Kuroshima. The planners studied

6667-425: The carriers USS  Saratoga , Enterprise , Lexington , Wasp , Hornet , Yorktown and Ranger starting in 1937. Even prewar, TBD units were being shifted to training duties with at least one aircraft being converted to target tug duty. By 1940, the US Navy was aware that the TBD had become outclassed and a replacement, the Grumman TBF Avenger , was in the works, but it was not yet operational when

6780-555: The closest to a complete airframe. An expedition has been proposed to recover several TBDs from the wreck of the USS Lexington . Note that these aircraft exist in varying degrees of intactness due to circumstances of their loss and subsequent saltwater corrosion. For example, the pair at Jaluit, a shallow warm-water atoll, have reef creatures growing on their exteriors; several of those lost at Coral Sea have broken wings and fuselages due to avgas explosions and their free-fall to

6893-701: The commanding officer of one of the submarines, was captured. Japan declared war on the United States and the British Empire later that day (December 8 in Tokyo ), but the declarations were not delivered until the following day. The British government declared war on Japan immediately after learning that their territory had also been attacked, while the following day (December 8), the United States Congress declared war on Japan . On December 11, though they had no formal obligation to do so under

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7006-436: The day before the note's delivery, the Japanese task force left port for Pearl Harbor . The Japanese intended the attack as a preventive action to keep the United States Pacific Fleet from interfering with their planned military actions in Southeast Asia against overseas territories of the United Kingdom , the Netherlands , and the United States. Over the course of seven hours, there were coordinated Japanese attacks on

7119-551: The deadliest event ever recorded in Hawaii. It was also the deadliest foreign attack against the United States in its history until the September 11 attacks of 2001. Important base installations, such as the power station, dry dock , shipyard , maintenance, and fuel and torpedo storage facilities, as well as the submarine piers and headquarters building (also home of the intelligence section ) were not attacked. Japanese losses were light: 29 aircraft and five midget submarines were lost, and 129 servicemen killed. Kazuo Sakamaki ,

7232-410: The deep sea floor. On 4 March 2018, Paul G. Allen 's R/V Petrel team discovered the wreck of the USS Lexington at 3,000 meters (about two miles) below the surface, resting on the floor of the Coral Sea more than 500 miles off the eastern coast of Australia. Near the wreck were the remains of seven Devastators, as well as an F4F-3 Wildcat. An attempt by A and T Recovery to recover at least four of

7345-405: The delayed development of its successor, the B6N . In the early part of the Pacific War , when flown by well-trained IJN aircrews and as part of well-coordinated attacks, the B5N achieved particular successes at the battles of Pearl Harbor , Coral Sea , Midway , and Santa Cruz Islands . The B5N was designed by a team led by Katsuji Nakamura in response to a 1935 specification by the Navy for

7458-529: The enemy ships and force the Japanese carriers to take sharp evasive maneuvers. By obliging the Japanese to keep their flight decks clear and to continually cycle and reinforce their combat air patrols , they prevented any Japanese counter-attacks against the American carriers, just as Spruance had anticipated. These windows of opportunity were exploited by the late-arriving Douglas SBD Dauntless dive bombers led by Lieutenant Commander C. Wade McClusky and Max Leslie , which dive-bombed and fatally damaged three of

7571-425: The fall of 1943. It took growing American air superiority, improved attack coordination, and more experienced pilots, before the Avengers were able to successfully accomplish their roles in subsequent battles against Japanese surface forces. No TBD’s survive in museums or private collections, nor are there any currently under restoration. However, below are eleven underwater aircraft that are known to exist and are

7684-532: The first target; instead, they expected the Philippines to be attacked first. This presumption was due to the threat that the air bases throughout the country and the naval base at Manila posed to sea lanes, as well as to the shipment of supplies to Japan from territory to the south. They also incorrectly believed that Japan was not capable of mounting more than one major naval operation at a time. The Japanese attack had several major aims. First, it intended to destroy important American fleet units, thereby preventing

7797-449: The first wave approached Oahu, it was detected by United States Army SCR-270 radar positioned at Opana Point near the island's northern tip. This post had been in training mode for months, but was not yet operational. The operators, Privates George Elliot Jr. and Joseph Lockard , reported a target to Private Joseph P. McDonald , a private stationed at Fort Shafter 's Intercept Center near Pearl Harbor. Lieutenant Kermit A. Tyler ,

7910-476: The first wave. The first wave was to be the primary attack, while the second wave was to attack carriers as its first objective and cruisers as its second, with battleships as the third target. The first wave carried most of the weapons designed to attack capital ships, mainly specially adapted Type 91 aerial torpedoes which were designed with an anti-roll mechanism and a rudder extension that let them operate in shallow water. The aircrews were ordered to select

8023-418: The four Japanese carriers about one hour after the first TBD torpedo attacks had developed. While the Devastators faced the stiff defenses of the carriers and their fighters, their attacks served to distract the Japanese attention from the Dauntless dive bombers' strikes, resulting in relatively lighter resistance from the IJN carriers' defensive fighter patrols, and more effective American attacks that crippled

8136-653: The greatest successes of the B5N2 were the key roles it played in sinking the United States Navy aircraft carrier Lexington at the Battle of the Coral Sea and the aircraft carrier Hornet at the Battle of the Santa Cruz Islands , and the disabling of the aircraft carrier Yorktown at the Battle of Midway , later sunk by the Japanese submarine  I-168 . B5N2 torpedo bombers normally performed

8249-539: The ground. Almost none were actually ready to take off to defend the base. Eight Army Air Forces pilots managed to get airborne during the attack, and six were credited with downing at least one Japanese aircraft during the attack: 1st Lieutenant Lewis M. Sanders and 2nd Lieutenants Philip M. Rasmussen , Kenneth M. Taylor , George S. Welch , Harry W. Brown , and Gordon H. Sterling Jr. Of 33 Consolidated PBY Catalinas in Hawaii, 30 were destroyed, while three on patrol at

8362-431: The harbor entrance and again on the east side of Oahu, where it was captured on December 8. Ensign Kazuo Sakamaki swam ashore and was captured by Hawaii National Guard Corporal David Akui , becoming the first Japanese prisoner of war . A fourth had been damaged by a depth charge attack and was abandoned by its crew before it could fire its torpedoes. It was found outside the harbor in 1960. Japanese forces received

8475-421: The highest-value targets (battleships and aircraft carriers ) or, if these were not present, any other high-value ships (cruisers and destroyers). First-wave dive bombers were to attack ground targets. Fighters were ordered to strafe and destroy as many parked aircraft as possible to ensure they did not intercept the bombers, especially in the first wave. When the fighters' fuel got low, they were to refuel aboard

8588-470: The latter perceived as an unfriendly act. The United States did not stop oil exports, however, partly because of the prevailing sentiment in Washington that given Japanese dependence on American oil, such an action was likely to be considered an extreme provocation. In mid-1940, President Franklin D. Roosevelt moved the Pacific Fleet from San Diego to Hawaii. He also ordered a military buildup in

8701-511: The meeting, warning that it was the only way to preserve the conciliatory Konoe government and peace in the Pacific. However, his recommendation was not acted upon. The Konoe government collapsed the following month when the Japanese military rejected a withdrawal of all troops from China. Japan's final proposal, delivered on November 20, offered to withdraw from southern Indochina and to refrain from attacks in Southeast Asia, so long as

8814-399: The message took too long for the Japanese ambassador to deliver it at 1:00   p.m. Washington time, as ordered, and consequently the message was not presented until more than one hour after the attack had begun —   but American code breakers had already deciphered and translated most of the message hours before it was scheduled to be delivered. The final part of the message

8927-530: The next decade, Japan expanded into China , leading to the Second Sino-Japanese War in 1937. Japan spent considerable effort trying to isolate China and endeavored to secure enough independent resources to attain victory on the mainland. The " Southern Operation " was designed to assist these efforts. Starting in December 1937, events such as the Japanese attack on USS Panay , the Allison incident , and

9040-666: The only fire department members on American soil to be attacked by a foreign power in history. Fireman Harry Tuck Lee Pang of Engine   6 was killed near the hangars by machine-gun fire from a Japanese plane. Captains Thomas Macy and John Carreira of Engine   4 and Engine   1, respectively, died while battling flames inside the hangar after a Japanese bomb crashed through the roof. An additional six firefighters were wounded by Japanese shrapnel. The wounded later received Purple Hearts (originally reserved for service members wounded by enemy action while partaking in armed conflicts) for their peacetime actions that day on June 13, 1944;

9153-546: The opening line of his speech to a Joint Session of Congress the following day, to famously label December 7, 1941, " a date which will live in infamy ". War between the Empire of Japan and the United States was seen as a possibility since the 1920s. Japan had been wary of American territorial and military expansion in the Pacific and Asia since the late 1890s, followed by the annexation of islands, such as Hawaii and

9266-484: The operators of the six B-17s that were due (even though it was widely known). As the first wave approached Oahu, they encountered and shot down several American aircraft. At least one of these radioed a somewhat incoherent warning. Other warnings from ships off the harbor entrance were still being processed or awaiting confirmation when the Japanese air assault began at 7:48   a.m. Hawaiian time (3:18   a.m. December 8 Japanese Standard Time , as kept by ships of

9379-495: The peace of the Pacific through cooperation with the American Government has finally been lost. The Japanese Government regrets to have to notify hereby the American Government that in view of the attitude of the American Government it cannot but consider that it is impossible to reach an agreement through further negotiations. United States naval intelligence officers were alarmed by the unusual timing for delivering

9492-565: The prototype easily passed its acceptance trials that ran from 24 April to 24 November 1935 at NAS (Naval Air Station) Anacostia and Norfolk bases. After successfully completing torpedo drop tests, the prototype was transferred to the Lexington for carrier certification. The extended service trials continued until 1937 with the first two production aircraft retained by the company exclusively for testing. The US Navy's Bureau of Aeronautics (BuAer) purchased 129 examples, and began to equip

9605-497: The racks and exchanging between the torpedo and bombs was not a trivial process and could take more than two hours to complete. Initially, most of the B5N bombers were painted in silver, which was the color used throughout the early stages of the Second Sino-Japanese War. The color eventually changed to dark green before the start of the Pacific War . The B5N was primarily employed as a carrier-based aircraft and occasionally as

9718-615: The second wave attacked the Army Air Forces' Bellows Field , near Kaneohe on the windward side of the island, and Ford Island. The only aerial opposition came from a handful of P-36 Hawks , P-40 Warhawks and some SBD Dauntless dive bombers from the carrier Enterprise . In the first-wave attack, about eight of the forty-nine 800‑kg (1760   lb) armor-piercing bombs dropped hit their intended battleship targets. At least two of those bombs broke up on impact, another detonated before penetrating an unarmored deck, and one

9831-591: The ship's antiaircraft guns and was severely wounded but remained at his post. Lieutenant Commander F. J. Thomas commanded Nevada in the captain's absence and got her underway until the ship was grounded at 9:10   a.m. One of the destroyers, Aylwin , got underway with only four officers aboard, all ensigns, none with more than a year's sea duty; she operated at sea for 36 hours before her commanding officer managed to get back aboard. Captain Mervyn Bennion , commanding West Virginia , led his men until he

9944-586: The side of the Allies the day following the attack, on December 8, 1941. The Japanese military leadership referred to the attack as the Hawaii Operation and Operation AI , and as Operation Z during its planning. The Empire of Japan 's attack on Pearl Harbor was preceded by months of negotiations between the United States and Japan over the future of the Pacific . Japanese demands included that

10057-486: The slow speed of the aircraft made them easy targets for the Mitsubishi A6M Zeros . Only four TBDs made it back to Enterprise , none to Hornet and two to Yorktown , without scoring a torpedo hit. Nonetheless, their sacrifice was not completely in vain, as several TBDs managed to get within a few ship-lengths range of their targets before dropping their torpedoes, being close enough to be able to strafe

10170-500: The target yet failed to explode; there was also a tendency to run deeper than the set depth. It took over a year for the defects to be corrected. These problems were not fixed by the time of the Battle of Midway on 4 June 1942. At Midway, a total of 41 Devastators, the majority of the type still operational, were launched from Hornet , Enterprise and Yorktown to attack the Japanese fleet. The sorties were not well coordinated, in part because Rear Admiral Raymond A. Spruance ordered

10283-530: The termination of negotiations   ... and they clearly prevailed." In any event, even if the Japanese had decoded and delivered the 14-Part Message before the beginning of the attack, it would not have constituted either a formal break of diplomatic relations or a declaration of war. The final two paragraphs of the message read: Thus the earnest hope of the Japanese Government to adjust Japanese-American relations and to preserve and promote

10396-471: The three firefighters killed did not receive theirs until December 7, 1984, on the 43rd anniversary of the attack. This made the nine men the only non-military firefighters to receive such an award in American history. Already damaged by a torpedo and on fire amidships, Nevada attempted to exit the harbor. She was targeted by many Japanese bombers as she got under way and sustained more hits from 250 lb (113 kg) bombs, which started further fires. She

10509-494: The torpedo bombers did not launch until the battle was over. The B5N served as the basis for a follow-on design, the B6N , which eventually replaced it in front-line service. The B5N continued to fly in secondary roles, such as training , target towing , and anti-submarine warfare . Some of the aircraft used for this latter purpose were equipped with early radars and magnetic anomaly detectors . B5Ns were also used as bombers during

10622-466: The unsuccessful defense of the Philippines in October 1944, suffering severe losses. Later in the war, they were used for kamikaze attacks. None of the 1,150 production B5Ns survived World War II intact. Only two partially-recovered B5Ns are known to exist, neither of them airworthy. Replicas of the B5N2s were made using stretched fuselages from U.S. Canadian Car and Foundry "Harvard" - a variant of

10735-626: The wrecks, including the Devastator, is currently underway as of January 2023. On 19 September 2019, the USS Midway Museum acquired a 1:1 scale replica used in the World War II movie, Midway . The plane was donated from Lionsgate following the conclusion of filming and will become an exhibit on USS  Midway  (CV-41) 's hangar. Data from Devastator...The Not-so-Devastating TBD-1 General characteristics Performance Armament Dive Bomber (1941)

10848-449: Was a dud. Thirteen of the forty torpedoes hit battleships, while four hit other ships. Men aboard the ships awoke to the sounds of alarms, bombs exploding, and gunfire, prompting them to dress as they ran to General Quarters stations. (The famous message, "Air raid Pearl Harbor. This is not drill.", was sent from the headquarters of Patrol Wing Two, the first senior Hawaiian command to respond.) American servicemen were caught unprepared by

10961-619: Was a surprise military strike by the Imperial Japanese Navy Air Service on the American naval base at Pearl Harbor in Honolulu , Hawaii, the United States, just before 8:00   a.m. (local time) on Sunday, December 7, 1941. At the time, the United States was a neutral country in World War II . The attack on Hawaii and other U.S. territories led the United States to formally enter World War II on

11074-744: Was an American film directed by Michael Curtiz . It is notable for both its Technicolor photography of pre- World War II United States Navy aircraft featuring the TBD Devastator, and scenes on the aircraft carrier Enterprise as well as the NAS North Island in San Diego . The 2014 film Against the Sun depicts a real-life story of the survival of a Devastator's crew after it had to ditch due to running out of fuel. The crew survived 34 days adrift. The 2019 film Midway featured

11187-627: Was attacked by 353 Imperial Japanese aircraft (including fighters , level and dive bombers , and torpedo bombers ) in two waves, launched from six aircraft carriers . Of the eight United States Navy battleships present, all were damaged and four were sunk. All but USS  Arizona were later raised, and six were returned to service and went on to fight in the war. The Japanese also sank or damaged three cruisers , three destroyers , an anti-aircraft training ship, and one minelayer . More than 180 US aircraft were destroyed. A total of 2,393 Americans were killed and 1,178 others were wounded, making it

11300-596: Was considered unusual for him. Additionally, he actively sought more information about the war plans. According to an aide, he openly displayed happiness upon hearing about the success of the surprise attacks. By late 1941, many observers believed that hostilities between the United States and Japan were imminent. A Gallup poll just before the attack on Pearl Harbor found that 52% of Americans expected war with Japan, 27% did not, and 21% had no opinion. While American Pacific bases and facilities had been placed on alert on many occasions, officials doubted Pearl Harbor would be

11413-407: Was cut down by fragments from a bomb which hit Tennessee , moored alongside. The second planned wave consisted of 171 planes: 54 B5Ns, 81 D3As, and 36 A6Ms, commanded by Lieutenant-Commander Shigekazu Shimazaki . Four planes failed to launch because of technical difficulties. This wave and its targets also comprised three groups of planes: The second wave was divided into three groups. One

11526-428: Was deliberately beached to avoid risking blocking the harbor entrance if she sank there. California was hit by two bombs and two torpedoes. The crew might have kept her afloat, but were ordered to abandon ship just as they were raising power for the pumps. Burning oil from Arizona and West Virginia was drifted down toward her and probably made the situation look worse than it was. The disarmed target ship Utah

11639-406: Was equipped with a Type 90 bombsight , which was a long vertical tube located in the front-left of the seat. There was also a Type 3 reflector compass for precise navigation that was mounted on the top of the cockpit frame. The radio-operator / gunner position was equipped with one of the standard-issue radio sets for navy three-seater aircraft (Type 96 Mk3 earlier and Type 2 Mk3 later) that

11752-547: Was given a much more powerful engine - Nakajima's own Sakae Model 11, 14-cylinder twin-row radial, as used in the initial models of the Mitsubishi A6M fighter – and various modifications were made to streamline it. Although its performance was only marginally better, and its weaknesses remained unremedied, this version replaced the B5N1 in production and service from 1939. The navigator / bombardier / observer position

11865-413: Was holed by a torpedo. The light cruiser Honolulu was damaged but remained in service. The repair vessel Vestal , moored alongside Arizona , was heavily damaged and beached. The seaplane tender Curtiss was also damaged. The destroyer Shaw was badly damaged when two bombs penetrated her forward magazine. Of the 402 American aircraft in Hawaii, 188 were destroyed and 159 damaged, 155 of them on

11978-453: Was holed twice by torpedoes. West Virginia was hit by seven torpedoes, the seventh tearing away her rudder. Oklahoma was hit by four torpedoes, the last two above her belt armor , which caused her to capsize. Maryland was hit by two of the converted 16" shells, but neither caused serious damage. Although the Japanese concentrated on battleships (the largest vessels present), they did not ignore other targets. The light cruiser Helena

12091-513: Was made by Japan, but this was not Admiral Yamamoto's intention. He originally stipulated that the attack should not commence until thirty minutes after Japan had informed the United States that peace negotiations were at an end. However, the attack began before the notice could be delivered. Tokyo transmitted the 5000-word notification (commonly called the "14-Part Message") in two blocks to the Japanese Embassy in Washington. Transcribing

12204-617: Was mounted in front of the radio-operator/gunner's seat and behind the navigator/bombardier/observer's seat. The radio-operator/gunner also operated one flexible 7.7 mm (.303 in) Type 92 machine gun at the rear end of the cockpit. One Type 91 torpedo could be mounted on the racks that were fixed eccentrically to the right at the bottom of the fuselage. Alternatively, racks could be replaced to carry either one 800 kg bomb (e.g., Type 99 No 80 armor-piercing bomb) or two 250 kg bombs (e.g., Type 98 No 25 land bomb) or six 60 kg bombs (e.g., Type 2 No 6 land bomb). Replacing

12317-797: Was prepared to take opposing steps if "neighboring countries" were attacked. Japan and the United States engaged in negotiations during 1941, attempting to improve relations. In the course of these negotiations, Japan offered to withdraw from most of China and Indochina after making peace with the Nationalist government. It also proposed to adopt an independent interpretation of the Tripartite Pact and to refrain from trade discrimination, provided all other nations reciprocated. Washington rejected these proposals. Japanese Prime Minister Konoe then offered to meet with Roosevelt, but Roosevelt insisted on reaching an agreement before any meeting. The American ambassador to Japan repeatedly urged Roosevelt to accept

12430-680: Was tasked to attack Kāneʻohe, the rest Pearl Harbor proper. The separate sections arrived at the attack point almost simultaneously from several directions. Ninety minutes after it began, the attack was over. 2,008 sailors were killed and 710 others wounded; 218 soldiers and airmen (who were part of the Army prior to the independent United States Air Force in 1947) were killed and 364 wounded; 109 Marines were killed and 69 wounded; and 68 civilians were killed and 35 wounded. In total, 2,403 Americans were killed, and 1,178 were wounded. Eighteen ships were sunk or run aground, including five battleships. All of

12543-482: Was the most advanced aircraft flying for the Navy; however, by the time of the US entry into World War 2 , the TBD was already outdated. The Devastator performed well early in the war, most notably in the Battle of the Coral Sea , but earned infamy for a catastrophic performance during the Battle of Midway in which 41 Devastators recorded zero torpedo hits with only six surviving to return to their carriers. Although much of

12656-506: Was the only battleship that day to suffer catastrophic damage to her belt armor at the waterline from a torpedo. Admiral Chester Nimitz, in a report to Congress, confirmed that one midget submarine's torpedo (possibly from the other midget submarine that fired torpedoes but failed to hit a target) which was fired but did not explode was recovered in Pearl Harbor and was much larger than the aerial torpedoes. Others dispute this theory. The attack took place before any formal declaration of war

12769-438: Was torpedoed, and the concussion from the blast capsized the neighboring minelayer Oglala . Two destroyers in dry dock , Cassin and Downes , were destroyed when bombs penetrated their fuel bunkers . The leaking fuel caught fire; flooding the dry dock in an effort to fight fire made the burning oil rise, and both were burned out. Cassin slipped from her keel blocks and rolled against Downes . The light cruiser Raleigh

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