Description: The research of the works parameters influence of ramjet on distance and precisions of jet-projectiles is conducted. The influence of temperature of reactive charge on a single thrust impulse and burn time ramjet is investigated. Determination order of amendments on distance taking into accont the charge of temperature of reactive charge is examined. The mathematical model of aircrafts motion on a hard fuel allowing to get the laws of charge on a single impulse of thrust and burn time engine from temperature of reactive charge is offered.
Keywords: jet-projectiles, ramjet, distance and precisions of fire, temperature powder charge, single thrust impulse, degressive burning factor