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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Aeroplanes and Dirigibles of War by Frederick A. Talbot: position, and, if a spring-gun is employed to impart an initial
velocity to the missile, there is a greater probability of the
projectile striking the target provided it has been well-aimed.
But even then other conditions are likely to arise, such as
air-currents, which may swing the missile to one side of the
objective. Consequently adequate allowance has to be made for
windage, which is a very difficult factor to calculate from
aloft.
Bomb-dropping from an aeroplane is even more difficult. If for
instance the aeroplane is speeding along at 60 miles an hour, the
bomb when released will have a speed in the horizontal plane of
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