Downloaded from https://www.everyspec.com LIST OF SYMBOLS-(continued) = tangentiai shrinK ft stress T = torsional st-ess; direct shear stress tangential thermal stress = allowable shear stress iU, - tangential stress produced by radial 6 = mass moment of inertia of projectilc deflection = thrust factor - allowable tensile stress - critical speed; ratio, recoil momentum to - yield strength of material projectile momentum ', 2 •,, Q t x1