The 3.7 cm Flak M42 was the marine version of the 3.7-centimetre (1.5 in) Flak 36/37 and used by the Kriegsmarine on surface ships and as the M42U on Type VII and Type IX U-boats. The 3.7 cm Flak M42U used several types of mounts and entered service in autumn 1943.[2]
The 3.7 cm Flak M42 was a longer caliber version of the Wehrmacht's 3.7 cm Flak 36, 69 caliber as opposed to 57 caliber. It replaced the older 3.7 cm SK C/30 that had been designed in 1930. The gun was loaded with a five-round ammunition clip, giving it a rate of fire of 250 rounds per minute, unlike the SK C/30 which was single-shot with a rate of 30 rounds per minute. The M42 was also about 134 kg (295 lb) lighter than the SK C/30 and had gun shields.[1][3]
LM 42U Mount
The LM 42U mount was developed specifically for the 3.7 cm Flak M42U. It was manned by a 3-man crew, with a fourth man operating as the loader.[4]
DLM 42U Mount
The twin mount was based on the LM 42U design, in which the 3.7 cm Flak M42U guns were mounted side by side.[5]
LM 43U Mount
The LM 43U mount was the final design of mount used on U-boats. It was a further improvement on the LM 42U. The LM 43U was only known to be installed on these U-boats (U-249, U-826, U-977, U-1023, U-1171, U-1305 and U-1306).[5]
Campbell, John (1985). Naval Weapons of World War II. Annapolis, Maryland: Naval Institute Press. ISBN0-87021-459-4.
DiGiulian, Tony (30 November 2016). "Germany 3.7 cm/69 (1.5") Flak M42". NavWeaps. Retrieved 23 September 2017.
DiGiulian, Tony (30 April 2017). "Germany 3.7 cm/83 SK C/30". NavWeaps. Retrieved 23 September 2017.
Skwiot, Miroslaw (2011). German Naval Guns 1939–1945. Annapolis, Maryland: Naval Institute Press. ISBN978-1-59114-311-6.
Williams, Tony G. (2000). Rapid Fire: The Development of Automatic Cannon, Heavy Machine Guns and Their Ammunition for Armies, Navies and Air Forces. Shrewsbury, UK: Airlife Publishing. ISBN1-84037-122-6.
Further reading
Williams, Anthony G. (2022). Autocannon: A History of Automatic Cannon and Ammunition. Ramsbury, UK: The Crowood Press. ISBN978-1-78500-920-4.
External links
May 15, 2023
flak, marine, version, centimetre, flak, used, kriegsmarine, surface, ships, m42u, type, type, boats, used, several, types, mounts, entered, service, autumn, 1943, flak, single, mount, typeanti, aircraft, gunplace, originnazi, germanyservice, historyin, servic. The 3 7 cm Flak M42 was the marine version of the 3 7 centimetre 1 5 in Flak 36 37 and used by the Kriegsmarine on surface ships and as the M42U on Type VII and Type IX U boats The 3 7 cm Flak M42U used several types of mounts and entered service in autumn 1943 2 3 7 cm 69 Flak M42 1 A single 3 7 cm Flak M42U gun on the LM 42U mount TypeAnti aircraft gunPlace of originNazi GermanyService historyIn service1943 1945Used byKriegsmarineWarsWorld War IIProduction historyDesigned1942ManufacturerRheinmetal BorsigProduced1943 1945Specifications 3 7 cm Flak M42 Mass109 kg 240 lb Barrel length2 56 cm 1 01 in bore 69 calibers Crew3 4Shell37 249RShell weight635 700 g 1 400 1 543 lb Caliber37 mm 1 5 in ActionRecoil operatedBreechsliding breech blockElevation 10 to 90 Traverse360 Rate of fire250 rounds per minute cyclic Muzzle velocity815 865 m s 2 670 2 840 ft s Effective firing range4 800 m 5 200 yd at 85 elevation 6 400 m 7 000 yd at 45 elevationFeed system5 round clips Contents 1 3 7 cm Flak M42 1 1 LM 42U Mount 1 2 DLM 42U Mount 1 3 LM 43U Mount 2 Gallery 3 References 4 Bibliography 5 Further reading 6 External links3 7 cm Flak M42 EditThe 3 7 cm Flak M42 was a longer caliber version of the Wehrmacht s 3 7 cm Flak 36 69 caliber as opposed to 57 caliber It replaced the older 3 7 cm SK C 30 that had been designed in 1930 The gun was loaded with a five round ammunition clip giving it a rate of fire of 250 rounds per minute unlike the SK C 30 which was single shot with a rate of 30 rounds per minute The M42 was also about 134 kg 295 lb lighter than the SK C 30 and had gun shields 1 3 LM 42U Mount Edit The LM 42U mount was developed specifically for the 3 7 cm Flak M42U It was manned by a 3 man crew with a fourth man operating as the loader 4 DLM 42U Mount Edit The twin mount was based on the LM 42U design in which the 3 7 cm Flak M42U guns were mounted side by side 5 LM 43U Mount Edit The LM 43U mount was the final design of mount used on U boats It was a further improvement on the LM 42U The LM 43U was only known to be installed on these U boats U 249 U 826 U 977 U 1023 U 1171 U 1305 and U 1306 5 Gallery Edit 3 7 cm Flak M42U used on U boats A single 3 7 cm Flak M42U gun on the LM 42U mount A single 3 7 cm Flak M42U gun on the LM 43U mount Twin 3 7 cm Flak M42U guns on the DLM 42U mount References Edit a b DiGiulian 2016 Skwiot p 333 DiGiulian 2017 Skwiot p 340 a b Skwiot p 342Bibliography EditCampbell John 1985 Naval Weapons of World War II Annapolis Maryland Naval Institute Press ISBN 0 87021 459 4 DiGiulian Tony 30 November 2016 Germany 3 7 cm 69 1 5 Flak M42 NavWeaps Retrieved 23 September 2017 DiGiulian Tony 30 April 2017 Germany 3 7 cm 83 SK C 30 NavWeaps Retrieved 23 September 2017 Skwiot Miroslaw 2011 German Naval Guns 1939 1945 Annapolis Maryland Naval Institute Press ISBN 978 1 59114 311 6 Williams Tony G 2000 Rapid Fire The Development of Automatic Cannon Heavy Machine Guns and Their Ammunition for Armies Navies and Air Forces Shrewsbury UK Airlife Publishing ISBN 1 84037 122 6 Further reading EditWilliams Anthony G 2022 Autocannon A History of Automatic Cannon and Ammunition Ramsbury UK The Crowood Press ISBN 978 1 78500 920 4 External links Edit Retrieved from https en wikipedia org w index php title 3 7 cm Flak M42 amp oldid 1120997244, wikipedia, wiki, book, books, library,
