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Type and usage-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
-1000x1000.jpg "WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151")
Original, complete, RARE WWII German Luftwaffe LSK 17A Fl. 47326 box for MG 151.
The MG 151 (MG 151/15) was a 15 mm autocannon produced by Waffenfabrik Mauser starting in 1940. It was in 1941 developed into the 20 mm MG 151/20 cannon which was widely used on many types of German Luftwaffe fighters, fighter bombers, night fighters, ground attack and even bombers as part of or as their main armament during World War II. The 20 mm MG 151/20 was also fitted on the Italian World War II fighter aircraft of the "Serie 5", the most effective Italian fighters of WWII.
The 15 mm MG 151 was found to have lackluster performance as the main gun on Messerschmitt Bf 109 early F-2, and was soon replaced by the 20 mm version to become the standard cannon for the Bf 109F-4 series onwards until it was superseded by the 30 mm MK 108 cannon.
To create the MG 151/20 round, Mauser simply necked out the MG 151/15's case (i.e. enlarged the opening of the case where the shell fits in) to fit a 20 mm shell—which, incidentally, was the same shell used in the MG FF cannon—and shortened the length of the case so that the total length of the complete round was the same for both calibres. These measures simplified conversion of the cannon between calibres, so that it was possible to convert the 15 mm to the 20 mm MG 151/20 simply by changing the barrel and making other small modifications. However, this simple modification-based approach was not without its drawbacks. The relatively short case of the 20 mm round, coupled with the larger and heavier 20 mm projectile cost some muzzle velocity (950 m/s for the 15 mm round vs. 800 m/s for the 20 mm round—a 16% drop). However, in comparison to the earlier MG FF cannon, the MG 151 had a higher muzzle velocity which gave it a more predictable trajectory and higher impact velocity/longer range.
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