AA gunnery was a difficult business. The problem was of successfully aiming a shell to burst close to its target's future position, with various factors affecting the shells' predicted trajectory. This was called deflection gun-laying, 'off-set' angles for range and elevation were set on the gunsight and updated as their target moved. In this method when the sights were on the target, the barrel was pointed at the target's future position. Range and height of the target determined fuse length. The difficulties increased as aircraft performance improved. COUNT 5
QSN1 What was the problem with AA gunnery? ANS1 successfully aiming a shell to burst close to its target's future position QSN2 Different things could affect what with the shell? ANS2 predicted trajectory QSN3 What was updated on the gunsight as a target moved? ANS3 'off-set' angles for range and elevation QSN4 Where was the barrel pointed when the sights were on a target? ANS4 the target's future position QSN5 What two things figured the fuse length? ANS5 Range and height of the target