Description
The motor consists of a welded steel cylinder, to the head of which a threaded shell ring is attached by means of spring-locked pins which engage holes in the motor body, A venturi tube is welded in the after end of the motor body. The tubular cordite grain is castellated at the forward end and rests in the motor body, supported by a metal grid at the after end. The propellant is initiated by an electric igniter placed in the castellations at the forward end. The tail orifice is sealed by a cardboard, plastic, or metal closing disc, and a silica gel bag is included as a moisture-proofing measure.
Electric leads from the igniter pass through the central channel of the cordite grain to the four brass contacts on the tail. These contacts, 'two positive and two negative, are so arranged that proper contact is maintained with the knife edges on the projector, regardless of the angle at which the round is loaded.
The motor is generally painted white or green over-all, with identification markings stencilled on the outside. Proposed new nomenclature for the motors is as follows: Motor, Rocket, 2-in., No. 1 Mks I-III.
Functioning
No information about functioning.
See Also
Tail, Propelling, Rocket, 2 inch, Mk 6, Mk 7
Source(s)
OP 1665, British Explosive Ordnance (1946)
