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Breach: a gap in fortified or battle lines. Breakout: exploiting a breach in enemy lines so that a large force (division or above) passes through. Bridgehead and its varieties known as beachheads and airheads. Camouflet. Chalk: a group of paratroopers or other soldiers that deploy from a single aircraft.
A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants – particularly various types of ancient and medieval siege engines. [1] A catapult uses the sudden release of stored potential energy to propel its payload. Most convert tension or torsion energy that was more slowly ...
The catapult operator then pushes a button to fire the catapult. Once the catapult fires, the hold-back breaks free as the shuttle moves rapidly forward, dragging the aircraft by the launch bar. The aircraft accelerates from zero (relative to the carrier deck) to about 150 knots (280 km/h; 170 mph) in about 2 seconds.
Ejection seat. In aircraft, an ejection seat or ejector seat is a system designed to rescue the pilot or other crew of an aircraft (usually military) in an emergency. In most designs, the seat is propelled out of the aircraft by an explosive charge or rocket motor, carrying the pilot with it.
A shut-in is a person confined indoors, especially as a result of physical or mental disability. Agoraphobe. Recluse. Invalid, or patient. Hikikomori, a Japanese term for reclusive adolescents or adults who withdraw from social life.
Catapult effect. In electromagnetics, the catapult description of magnetic forces refers to when a current is passed through a loose wire in a magnetic field. The loose wire is then catapulted horizontally away from the magnetic field. This occurs due to the Lorentz force acting on the electric current in the wire due to the magnetic field.
Slingshot. A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two natural rubber strips or tubes attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the frame, while the other hand grasps the pocket and ...
Counterweight trebuchet used in a siege from the Jami' al-tawarikh, c. 1306-18 [1] [2] A trebuchet [nb 1] ( French: trébuchet) is a type of catapult [5] that uses a rotating arm with a sling attached to the tip to launch a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to ...