(under subclass 200.1) Apparatus having two or more separately contained propellants or two or more solid propellant charges having the same or distinct burning characteristics arranged so that one of said propellants may be partially or completely consumed prior to another during the operation of the reaction apparatus.
(1) Note. A solid propellant rocket having an igniter which inherently produces some thrust during ignition, is not included under this definition. See subclass 256 for devices used to ignite solid propellant charges.
(2) Note. Under this definition a plurality of solid propellant charges having the same burning characteristics would include an arrangement of individually formed masses of propellant either in physical contact with each other or separated from one another.
(3) Note. See (1) Note subclass 205 for the meaning of "propellant".
SEE OR SEARCH THIS CLASS, SUBCLASS:
225, for a plurality of reaction motors which are interrelated and which may be operated sequentially.
245+, for reaction motors changeable to operate by one principle of operation from another.
