The present study investigates the effects of in bore-yaw phenomenon on lateral throw-off and aerodynamic jump behavior for small caliber rotational symmetric (both in configuration and mass distribution) projectiles launched horizontally at supersonic firing speeds and various altitudes from high-subsonic air vehicles. The ammunition used is the caliber .50 API M8 bullet type firing from M2 machine automatic gun. The projectile is considered to be eccentrically engraved, tilted as it enters the rifling, and it is assumed that the tilt persists throughout its passage through the rifled barrel of the used weapon system. The modified linear 6-DOF flight simulation modeling is applied for the bullet free-flight trajectory predictions. The coupled epicyclic pitching and yawing motion analysis for the first 100 m of the examined trajectories are taken into account.
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September 2011
Research Papers
In-Bore Yaw Effects on Lateral Throw-off and Aerodynamic Jump Behavior for Small Caliber Projectiles Firing Sidewise From Air Vehicles
Dimitrios N. Gkritzapis,
Dimitrios N. Gkritzapis
Lecturer of Ballistics Captain of Hellenic Police
Department of Mathematical and Engineering Sciences, Hellenic Military Academy, Vari, Attiki, 16673, Greece; Laboratory of Firearms and Tool Marks Section,
Criminal Investigation Division, Hellenic Police
, Athens, Attiki, 10442, Greece
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Elias E. Panagiotopoulos
Elias E. Panagiotopoulos
Lecturer of Ballistics Lieutenant of Hellenic Police
Department of Mathematical and Engineering Sciences, Hellenic Military Academy, Vari, Attiki, 16673, Greece; Laboratory of Firearms and Tool Marks Section,
Criminal Investigation Division, Hellenic Police
, Athens, Attiki, 10442, Greece
Search for other works by this author on:
Dimitrios N. Gkritzapis
Lecturer of Ballistics Captain of Hellenic Police
Department of Mathematical and Engineering Sciences, Hellenic Military Academy, Vari, Attiki, 16673, Greece; Laboratory of Firearms and Tool Marks Section,
Criminal Investigation Division, Hellenic Police
, Athens, Attiki, 10442, Greece
Elias E. Panagiotopoulos
Lecturer of Ballistics Lieutenant of Hellenic Police
Department of Mathematical and Engineering Sciences, Hellenic Military Academy, Vari, Attiki, 16673, Greece; Laboratory of Firearms and Tool Marks Section,
Criminal Investigation Division, Hellenic Police
, Athens, Attiki, 10442, Greece
J. Appl. Mech. Sep 2011, 78(5): 051017 (7 pages)
Published Online: August 5, 2011
Article history
Received:
November 26, 2010
Revised:
May 24, 2011
Online:
August 5, 2011
Published:
August 5, 2011
Citation
Gkritzapis, D. N., and Panagiotopoulos, E. E. (August 5, 2011). "In-Bore Yaw Effects on Lateral Throw-off and Aerodynamic Jump Behavior for Small Caliber Projectiles Firing Sidewise From Air Vehicles." ASME. J. Appl. Mech. September 2011; 78(5): 051017. https://doi.org/10.1115/1.4004294
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