Technical instructional film for bomb aimers, focusing on the basic principles of dropping bombs.
Reel one: Elementary theory of aiming. The bombing angle - Explanation of the principles involved in dropping bombs from aircraft (height, forward speed, direction). Effect of air resistance – effect on the trajectory of the bomb. Trail angle – ballistic quality of the bomb affects the trail angle. Terminal velocity explained. Adjusting bombsight to compensate for differing trajectory of bombs. The effect of wind.
Reel two: Compensating for the effect of wind and drift on calculating the bomb release point. Crosswind effect on track. Care of the course setting bombsight – ensuring the bombsight is handled and stored with utmost care.