Accession Number : AD0866668

Title :   Aerodynamic Characteristics of the 152mm Ammunitions XM409E5, XM411E3, XM411E4 and XM657E2 at Small Yaw.

Descriptive Note : Memorandum rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Brandon, Fred J. ; MacAllister, Leonard C.

Report Date : FEB 1970

Pagination or Media Count : 44

Abstract : Exterior ballistic tests of four 152mm munitions were conducted to determine the aerodynamic properties of the projectiles. The XM409E5, XM411E3, XM411E4 and XM657E2 shells were fired from an XM81E12 launcher with a twist of one turn in 41.2 calibers. The static and dynamic aerodynamic properties of the shells determined at small yaw levels over a Mach number range of 0.6 to 1.9 are presented and discussed. (Author)

Descriptors :   (*PROJECTILES, AERODYNAMIC CHARACTERISTICS), EXTERIOR BALLISTICS, RANGES(FACILITIES), FIRING TESTS(ORDNANCE), DRAG, MOMENTS, FORCE(MECHANICS), MAGNUS EFFECT, DAMPING, STABILITY.

Subject Categories : Ammunition and Explosives
      Combat Vehicles
      Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE