Abstract
A variable-thrust solid-propellant rocket engine (SPRE) with local combustion boosting by a catalytic grating (heat knife) was designed and the basic principles of operation were substantiated. A judicious heat-knife design was chosen, which ensured acceptable steady-state and dynamic characteristics of theSPRE. The engine was studied experimentally. The realizability and satisfactory performance of the variable-thrustSPRE with a heat knife on a composite non-metallized propellant were confirmed.
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