Flight Testing for a 155mm Base Burn Projectile
Memorandum rept. Jun 1988-Dec 1989
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
Pagination or Media Count:
A modified 155mm M864 base burn projectile was used to obtain in- flight measurements of pressure and temperature in the base region of the projectile. The M864 uses the base burn concept of reducing base drag by injecting gas, generated by burning propellant, into the base area. One measurement of pressure and one of temperature was made in the chamber where the propellant is burned pressure was measured in two locations on the base of the projectile. Pressure was also measured near the nose of the projectile, and a yawsonde was used to measure projectile yaw. Data illustrates the increased base pressure that occurs while the propellant is burning, along with fluctuations in pressure due to projectile yawing motion. Projectiles Base bleed Base burning Base pressure.
- Ammunition and Explosives