Accession Number:

ADA089980

Title:

Spin Jet Damping of Rocket-Assisted Projectiles

Descriptive Note:

Final rept.

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Murphy, Charles H.

Report Date:

1980-08-01

Pagination or Media Count:

23.0

Abstract:

A theory is developed to predict the spin-up of a rocket-assisted projectile during burning. The percentage change in spin is show to be proportional to the percentage change in the spin moment of inertia. Observed 2 increments in spin are about half the predicted maximum increment.

Descriptors:

• *PROJECTILE TRAJECTORIES
• *ROCKET ASSISTED PROJECTILES
• AEROBALLISTICS
• ANGULAR MOMENTUM
• BOATTAIL AFTERBODIES
• DAMPING
• EXHAUST GASES
• MOMENT OF INERTIA
• PITCH(MOTION)
• ROCKETS
• SPINNING(MOTION)
• THRUST
• YAWSONDES

Subject Categories:

• Ammunition and Explosives
• Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE