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Power‐operated spherical gun turrets are mounted at the nose and tail ends of an aeroplane fuselage 12. The turret shown in the figure is formed of a spherical frame covered with bulletproof glass and enclosing the gun and gunner. During elevation and depression the gun barrel sweeps through a longitudinal slot 15 giving a large are of fire extending upwardly and downwardly.
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© MCB UP Limited
1936
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