A high pressure power source for receipt on board a missile. The power source is passive until after the missile has been fired. The power source is in the form of a high pressure gas which is received in a combustion chamber of a pressure bottle. The energy from the gas is converted to electrical, pneumatic or hydraulic power as required on the missile thereby eliminating the need of electrical batteries on board the missile.
A projectile for being propelled along a trajectory by propellant gases inside a launcher tube, the projectile including a casing, first pressure means for first pressurizing the casing without exploding the casing during firing of the projectile, and second pressure means for second pressurizing and exploding the casing, wherein the first pressure means includes part of propellant gases inside a launcher tube used to propel the projectile, or alternatively, gases generated by the first pressure means.
