The Galloway Adriatic was a WW1 era inline-six aircraft engine. In British military service the engine was known as the 230 hp BHP , a designation it shared with a version of the same engine built by Siddeley-Deasy . Although the Galloway and Siddeley-Deasy versions followed a similar design, they had different dimensions and few interchangeable parts. Siddeley-Deasy developed their version of the 230 hp BHP as the Siddeley Puma .
14-434: Beardmore-Halford-Pullinger (BHP) were initially tasked with developing an aero-engine to compete with the latest German inline six-cylinder models. Although BHP's design was projected to produce 300 hp (224 kW) the engine's output came in below expectations. The original name given to engine was the 200 hp BHP. The engine's name was later changed to the 230 hp BHP to better reflect its actual output. Finally,
28-573: Is a British six-cylinder, water-cooled aero engine that first ran in 1916. It was built by Arrol-Johnston and Crossley Motors for William Beardmore and Company as a development of the Beardmore 120 hp , itself a licensed-built version of the Austro-Daimler 6 . The engine featured cast iron cylinders and mild steel concave pistons . Produced between March 1916 and December 1918, the design powered many World War I aircraft types. It
42-518: Is derived from surnames of three people: Beardmore started building aero-engines in 1913 when the group acquired the rights for licensed production of the Austro-Daimler 6 . Arrol-Johnson (a Beardmore subsidiary involved in automobile production) produced the Austro-Daimler 90 and 120 hp engines at their facility in Dumfries , Scotland . The 120 hp engine was further developed at
56-729: The Galloway Adriatic . The 230 hp engine was also licensed to Siddeley-Deasy , to be built at their Parkside works. In addition to building the Adriatic engines, Galloway also supplied components to Siddeley-Deasy . John Siddeley himself worked on the engine and, after making many changes, released the engine as the Siddeley Puma . The Puma was later developed into the ADC Nimbus . In British military service both Siddeley and Galloway built engines were known as
70-537: The 230 hp BHP although they had different dimensions and few interchangeable parts. Relatively few Galloway Adriatic engines were built. At the end of WW1, the RAF had 89 Galloway Adriatic engines in service versus 3,255 engines built by Siddeley-Deasy. All of the Adriatic engines were fitted to aircraft based in the United Kingdom. Related lists Beardmore 160 hp The Beardmore 160 hp
84-497: The Adriatic engines were fitted to aircraft based in the United Kingdom. Data from Engineering and Lumsden Related development Comparable engines Related lists Beardmore Halford Pullinger Beardmore-Halford-Pullinger ( BHP ) were a series of aircraft engines produced between 1916 and 1918. The engines were used on many First World War aircraft, including the Airco DH.4 and DH.9 . The name B.H.P
98-468: The Arrol-Johnson works with inputs from Frank Halford who was assigned to the firm as a liaison officer. Changes included the introduction of twin carburetors and dual ignition. The resulting engine was sold as the Beardmore 160 hp . Halford and Pullinger then designed a completely new engine to compete with the latest German inline six-cylinder models. A new company, Galloway Engineering Co. Ltd.
112-583: The cooling water jacket for groups of three cylinders. It is notable that the Siddeley Puma's cylinder heads and water jackets are made of aluminum. Each cylinder contained one large inlet valve and two smaller exhaust valves. This unusual three valve per cylinder design was common to both the Adriatic and Puma engines. The crankshaft was a hollow forging made of chrome-nickel steel supported by eight bearings. Seven were plain bearings made of babbitt alloy encased in steel shells. The other bearing
126-494: The engine's name was changed to the Galloway Adriatic. The Adriatic's cylinders were constructed in groups of three with each block being made from a single aluminum casting. The relatively large and intricate aluminum casting was challenging to produce which led to significant production delays. Three steel cylinder liners were screwed into a single iron casting which formed the head. A single steel stamping formed
140-544: The rights for licensed production of the Austro-Daimler 6 . During the time the Adriatic was in production, Arrol-Johnson was producing the Beardmore 160 hp . Both the Galloway Adriatic and the Beardmore 160 hp were partly designed by Frank Halford . In addition to the 94 Adriatic engines produced by Galloway, the firm also supplied components to Siddeley-Deasy . At the end of WW1, the RAF had 89 Adriatic engines in service versus 3,255 built by Siddeley-Deasy. All of
154-450: Was a double thrust rolling-element bearing which took all the axial load from the propeller. The camshaft was fitted in an aluminum housing running the entire length of the engine. Ignition system had 100% redundancy with two spark plugs per cylinder and two magnetos . Cylinder firing order was 1,5,3,6,2,4. Some Adriatic engines were fitted with experimental superchargers designed by Harry Ricardo . The Adriatic
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#1732794604129168-518: Was noted that the engine was not as reliable as its smaller capacity predecessor. A Beardmore 160 hp has been restored to airworthy condition by The Vintage Aviator Ltd , an aircraft restoration company based in Wellington , New Zealand . The engine was found complete and in a preserved condition in a farm shed in Uruguay , after a complete overhaul and ground test runs the engine powered
182-614: Was produced at Galloway’s Kirkcudbright facility near Dumfries in Scotland . Galloway Engineering were a subsidiary of William Beardmore and Company specifically setup to produce Beardmore Halford Pullinger (BHP) engines. Some parts for the engines were produced by Arrol-Johnston (another Beardmore subsidiary) in the town of Dumfries . The Adriatic was one of a series of upright water-cooled inline aircraft engines produced by Beardmore and its subsidiary companies. Production of these engines had started in 1913 when Beardmore acquired
196-466: Was set up in Kirkcudbright , near Dumfries, to continue development and production. Although BHP's design was projected to produce 300 hp (224 kW) the engine's output came in below expectations. The original name given to the engine was the 200 hp BHP. The engine's name was later changed to the 230 hp BHP to better reflect its actual output. Finally, the engine's name was changed to
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