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Disposition of Fighter Armament

Disposition of Fighter Armament WHEN the fixed, forwardfiring guns of a fighter aircraft are installed in such a position that the recoil forces have an effective moment about the Centre of Gravity, then the aircraft will develop a pitching motion as a direct result of the discharge of the guns. The projectiles in any given burst will then be dispersed across, instead of concentrated on, the target. A theoretical expression for this dispersion of projectiles is developed, and hypothetical data, corresponding approximately to a modern, singleengine, singleseat fighter, is used to derive typical values of the dispersion at two ranges. These values are then considered in conjunction with the two main forms of attack, and it is deduced that the discharge of more than two rounds per gun is valueless since the dispersion of projectiles then exceeds the radius of the target. Other disadvantages attendant on the winginstallation of guns are also noted and the conclusion is reached that, by mounting the armament in a battery in the nose, lengthy bursts of accurate, concentrated fire at long range are possible. Finally, the use of telescopic sights is envisaged if the potentialities of such a phenomenal increase in the operational efficiency of fighter aircraft are to be fully exploited. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Disposition of Fighter Armament

Aircraft Engineering and Aerospace Technology , Volume 15 (4): 4 – Apr 1, 1943

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb031004
Publisher site
See Article on Publisher Site

Abstract

WHEN the fixed, forwardfiring guns of a fighter aircraft are installed in such a position that the recoil forces have an effective moment about the Centre of Gravity, then the aircraft will develop a pitching motion as a direct result of the discharge of the guns. The projectiles in any given burst will then be dispersed across, instead of concentrated on, the target. A theoretical expression for this dispersion of projectiles is developed, and hypothetical data, corresponding approximately to a modern, singleengine, singleseat fighter, is used to derive typical values of the dispersion at two ranges. These values are then considered in conjunction with the two main forms of attack, and it is deduced that the discharge of more than two rounds per gun is valueless since the dispersion of projectiles then exceeds the radius of the target. Other disadvantages attendant on the winginstallation of guns are also noted and the conclusion is reached that, by mounting the armament in a battery in the nose, lengthy bursts of accurate, concentrated fire at long range are possible. Finally, the use of telescopic sights is envisaged if the potentialities of such a phenomenal increase in the operational efficiency of fighter aircraft are to be fully exploited.

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Apr 1, 1943

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