99Analytic and Computational Ballistics
weighs 0.583 lbs. The propellant used was single perforated cordite. Assume the cordite
propellant has the following properties:
Adiabatic ame temperature T
0
= 2442 K
Specic heat ratio γ = 1.21
Co-volume b = 31.32 in.
3
/lbm
Density of solid propellant δ = 0.059 lbm/in.
3
Propellant burn rate β = 0.00024 (in./s)/(psi)
Web thickness D = 0.0197 in.
Propellant force λ = 318,000 ft lbf/lbm
a. Determine the central ballistic parameter for this gun/projectile combination.
b. Using the aforementioned data, determine the projectile base pressure, velocity,
and distance down the bore of the weapon for both peak pressure and charge
burnout.
c. Determine the muzzle velocity of the weapon and the pressure acting on the ...