21. Once the projectile has travelled, the rocket motor starts and accelerates it to. 22. Packed inside were small, black brickettes the detective identified as rocket motor fuel. 23. Grain cracks did not affect combustion, like it does with solid rocket motors . 24. Bristol Aero Engines produced a range of rocket motors and ramjets for missile propulsion. 25. This means they can be manhandled safely, and maintained with the rocket motor installed. 26. In both these versions, power was provided by rocket motors on the rotor tips. 27. For a more complete discussion of the letter codes, see Model rocket motor classification. 28. After launch, the solid fuel rocket motor fired and SUBROC rose to the surface. 29. In a reverse hybrid rocket motor , the oxidizer is solid. 30. The SRBs were the most powerful rocket motors ever flown.
