propellant energy
61Gas-operated reloading — Gas operation is a system of operation used to provide energy to operate autoloading firearms. In gas operation, a portion of high pressure gas from the cartridge being fired is used to power a mechanism to extract the spent case and chamber a… …
62rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
63Airbag — An airbag is part of a vehicle s safety restraint system, a flexible envelope designed for rapid inflation in an automobile collision, to prevent vehicle occupants from striking hard interior objects such as steering wheels. It is considered a… …
64Spaceflight — For the magazine published by the British Interplanetary Society, see Spaceflight (magazine). For the 1985 PBS documentary series narrated by Martin Sheen, see Spaceflight (TV series). For the Sam Lazar album, see Space Flight (album). Part of a… …
65MBDA Meteor — Meteor Type Beyond Visual Range Air to Air Missile Se …
66Asteroid-impact avoidance — Planetary defense redirects here. For defending against alien invasion in fiction, see alien invasion. Artist s impression of a major impact event. The collision between Earth and an asteroid a few kilometres in diameter releases as much energy… …
67Shell (projectile) — This article is about the artillery projectile. For the small arms ammunition, see Shotgun shell. Some sectioned shells from the First World War. From left to right: 90 mm fragmentation shell, 120 mm pig iron incendiary shell, 77/14 model 75 mm… …
68Caseless ammunition — as a type of small arms ammunition eliminates the cartridge case that typically holds the primer, propellant, and projectile together as a unit. Caseless ammunition is an attempt to reduce the weight and cost of ammunition by dispensing with the… …
69spaceflight — /spays fluyt /, n. the flying of manned or unmanned spacecraft into or in outer space. Also, space flight. [1945 50; SPACE + FLIGHT1] * * * Introduction flight beyond Earth s atmosphere. This article deals with the basic concepts associated with …
70Muzzle velocity — For the computer video game, see Muzzle Velocity (computer game). Muzzle velocity is the speed a projectile has at the moment it leaves the muzzle of the gun[1]. Muzzle velocities range from approximately 400 ft/s (120 m/s) to… …
