Launch Dynamics of APFSDS (Armor Piercing, Fin-Stabilized, Discarding Sabot) Ammunition

reportActive / Technical Report | Accession Number: ADA147374 | Open PDF

Abstract:

An experimental program to determine the magnitude and nature of the launch perturbations to the projectile angular motion during sabot discard is discussed. The data analysis isolates the sources and quantifies the severity of the launch perturbations. An explanation of how the discard dynamics may be related to the inbore motion of the round is presented. The results show that the discard disturbances cause a net increase of 41 in the level of first maximum yaw. For the different configurations tested changes in the inbore contribution to first maximum yaw indicate that the structural design of the front boreriding system is critical to the inbore behavior. A correlation is given between the angular rate to angle ratio at the muzzle and the severity of the discard interactions. Based on the correlation an alternate launch philosophy is necessary for APFSDS ammunition to assure on target accuracy. Author

Author(s):
Plostins, P.
Author Organization(s):
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
Descriptive Note:
Final rept.
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
BRL-TR-2595
Project Number(s):
1L162618AH80
Monitor Series:
ARBRL
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5_Command and Control; JCA_5.2_Understand; JCA_5.3_Planning; JCA_6.1.1_Wired Transmission; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_1_Force Support; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_1.2_Force Preparation; JCA_1.2.5_Lessons Learned; JCA_6.2_Enterprise Services
Modernization Areas:
Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*GUN BARRELS, *TERMINAL BALLISTICS, *FIN STABILIZED AMMUNITION, *SABOT PROJECTILES, *TUBE LAUNCHED, FLIGHT TESTING, PITCH(MOTION), YAW, EQUATIONS OF MOTION, PERFORMANCE(ENGINEERING), FIRING TESTS(ORDNANCE), DEFORMATION, ANGLE OF ATTACK, AERODYNAMIC CHARACTERISTICS, RADIOGRAPHY, INTERIOR BALLISTICS, ANTITANK AMMUNITION
Field(s)/Group(s):
Ammunition and Explosives, Ballistics
Keyword(s):
APFSDS(Armor Piercing Fin Stabilized Discarding Sabot), Penetrators, Striking velocity, PE62618A, ASH80
Report Date:
1984 Oct 01