The Mikulin AM-38 was a 1940s Sovietaircraftpiston engine. It was a further development of the Mikulin AM-35 design.[1] The AM-38 was used on the Il-2 Shturmovik and Il-10 ground attack aircraft. The AM-38 was installed experimentally in a MiG-3 and tested during August 1941. A slight performance improvement was seen at low-altitude but the engine experienced overheating problems due to the cooling and oil systems remaining unchanged from the AM-35A.[2]
The AM-38 was a low-altitude engine for ground attack aircraft that evolved from the earlier AM-35A. Compared to the AM-35A it had a reduced compression ratio, strengthened crankshaft, a single-speed geared centrifugal supercharger optimized for low-altitude performance, revised cooling system and revised oil system. The AM-38 was developed by the design bureau of Factory No. 24 now called the Salyut factory in Moscow. The first examples were produced in October 1939 and passed its Factory tests in November 1939. The AM-38 was placed in production at the start of 1941 despite not passing its State tests until July 1941. The majority of engines were produced at Factory No. 24 which was evacuated to Kuybyshev at the end of 1941. In June 1942 production also began at Factory No. 45 which used the former workshops of Factory No. 24 in Moscow. The AM-38 was the most produced Mikulin engine with 43,191 built by the time it was phased out of production in 1946.[3]
Variants
AM-38F: A version with higher RPM for takeoff and a 10-minute forsazh (war emergency power) mode. It also had an oil centrifuge, strengthened camshafts, strengthened cylinder block, strengthened inlet valves and cylinder heads made from a new alloy. The diameter of the GCS impeller was also reduced and its compression ration was lowered to accommodate lower quality fuel. Series production began in at Factory No. 24 in October 1942 and Factory No. 45 in 1943. The engine did not pass State test until May 1943.
GAM-38F: A proposed marine version of the AM-38F.[3]
^Gordon, Yefim (1998). Soviet combat aircraft of the Second World War. Khazanov, Dmitriĭ. Leicester: Midland Pub. p. 74. ISBN1857800834. OCLC 40494691.
mikulin, 1940s, soviet, aircraft, piston, engine, further, development, mikulin, design, used, shturmovik, ground, attack, aircraft, installed, experimentally, tested, during, august, 1941, slight, performance, improvement, seen, altitude, engine, experienced,. The Mikulin AM 38 was a 1940s Soviet aircraft piston engine It was a further development of the Mikulin AM 35 design 1 The AM 38 was used on the Il 2 Shturmovik and Il 10 ground attack aircraft The AM 38 was installed experimentally in a MiG 3 and tested during August 1941 A slight performance improvement was seen at low altitude but the engine experienced overheating problems due to the cooling and oil systems remaining unchanged from the AM 35A 2 AM 38Preserved Mikulin AM 38F engineType Liquid cooled V 12 piston engineNational origin USSRManufacturer MikulinFirst run 1941Major applications Ilyushin Il 2Number built 43 191Developed from Mikulin AM 35Developed into Mikulin AM 42 Contents 1 Description 2 Variants 3 Specifications AM 38F 3 1 General characteristics 3 2 Components 3 3 Performance 4 Applications 5 See also 6 References 6 1 Notes 6 2 BibliographyDescription EditThe AM 38 was a low altitude engine for ground attack aircraft that evolved from the earlier AM 35A Compared to the AM 35A it had a reduced compression ratio strengthened crankshaft a single speed geared centrifugal supercharger optimized for low altitude performance revised cooling system and revised oil system The AM 38 was developed by the design bureau of Factory No 24 now called the Salyut factory in Moscow The first examples were produced in October 1939 and passed its Factory tests in November 1939 The AM 38 was placed in production at the start of 1941 despite not passing its State tests until July 1941 The majority of engines were produced at Factory No 24 which was evacuated to Kuybyshev at the end of 1941 In June 1942 production also began at Factory No 45 which used the former workshops of Factory No 24 in Moscow The AM 38 was the most produced Mikulin engine with 43 191 built by the time it was phased out of production in 1946 3 Variants EditAM 38F A version with higher RPM for takeoff and a 10 minute forsazh war emergency power mode It also had an oil centrifuge strengthened camshafts strengthened cylinder block strengthened inlet valves and cylinder heads made from a new alloy The diameter of the GCS impeller was also reduced and its compression ration was lowered to accommodate lower quality fuel Series production began in at Factory No 24 in October 1942 and Factory No 45 in 1943 The engine did not pass State test until May 1943 GAM 38F A proposed marine version of the AM 38F 3 Specifications AM 38F EditData from Kotelnikov 4 General characteristics Type 12 cylinder 60 V aircraft piston engine Bore 160 mm 6 30 in Stroke 190 mm 7 48 in 196 7 mm 7 74 in for cylinders with articulated connecting rods Displacement 46 66 L 2 847 cu in Dry weight 880 kg 1 940 lb Components Supercharger Single speed geared centrifugal supercharger Cooling system Liquid cooledPerformance Power output 1 270 kW 1 700 hp at 2 350 rpm Specific power 27 2 kW L 0 60 hp in Compression ratio 6 0 1 Power to weight ratio 1 53 kW kg 0 93 hp lb Applications EditIlyushin Il 2 Ilyushin Il 10See also EditRelated development Mikulin AM 35 Mikulin AM 42Related lists List of aircraft enginesReferences Edit Wikimedia Commons has media related to Mikulin AM 38 Notes Edit Gunston 1989 p 104 Gordon Yefim 1998 Soviet combat aircraft of the Second World War Khazanov Dmitriĭ Leicester Midland Pub p 74 ISBN 1857800834 OCLC 40494691 a b Kotelnikov 2005 p 111 Kotelnikov 2005 p 111 Bibliography Edit Gunston Bill World Encyclopedia of Aero Engines Cambridge England Patrick Stephens Limited 1989 ISBN 1 85260 163 9 Kotelnikov Vladimir Russian Piston Aero Engines Marlborough Wiltshire The Crowood Press Ltd 2005 ISBN 1 86126 702 9 Retrieved from https en wikipedia org w index php title Mikulin AM 38 amp oldid 1018261315, wikipedia, wiki, book, books, library,
