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superroma
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Walther
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Дата
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27.12.2016 21:10:17
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Рубрики
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WWII; ВВС;
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Re: ? по...
>существовали ли какие-либо ограничители хода вооружения для верхней и подфюзеляжной турелей, чтобы верхний стрелок в горячке боя не вынес киль, а нижний винты? Если ограничителей не было, бывали ли подобные случаи?
https://ww2aircraft.net/forum/threads/were-the-tails-protected-against-their-own-rear-upper-gunners-gunfire.21432/#post-580100
Ответ инженера B-17 служившего в 99 BG
Roman....Yes ,there was a Fire Cut-off Cam on both the upper and lower ball turrets.
The upper turret fire cut-off cam prevented the top turret from firing when passing the tail vertical stabilizer and rudder.
If traversing from the right to left, the RIGHT gun would cut out, and then the LEFT gun would cut out,,,and then as the Right gun passed the limit of the fire cut-off cam, the RIGHT gun would start firing again...Ditto the left gun as soon as it also cleared the Vertical stabilizer and rudder.
The ball turret worked in a similar manner to prevent firing into the aircraft propellors. Again, if you were traversing from LEFT to Right, when the fire cut-off cam was encountered, the ball turret guns would stop firing, passing N1 Propellor and commence again after clearing No 4.
This would not work if the gun barrels were overheated due to prolonged firing, as the rounds woild "Cookoff" due to the overheated barrel (s).
For this reason, we were taught to only fire in bursts of 20 rounds or so. so as to not overheat the barrels.
IF for some reason, the rifling in the barrel was worn, due to prolonged firing without a break, the bullet accuracy was affected, with no telling where the bullets were going.
Jim
Была защита на верхней и нижней турелях. Верхняя не давала стрелять по хвосту. Нижняя - по пропеллерам вперед.
Защита не работала когда стволы перегревались (не очень понял почему), поэтому учили стрелять очередями не более 20.