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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 ...
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 ...
CATOBAR. CATOBAR ("Catapult Assisted Take-Off But Arrested Recovery" [1] or "Catapult Assisted Take-Off Barrier Arrested Recovery" [2]) is a system used for the launch and recovery of aircraft from the deck of an aircraft carrier. Under this technique, aircraft launch using a catapult - assisted take-off and land on the ship (the recovery phase ...
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.
The Electromagnetic Aircraft Launch System ( EMALS) is a type of electromagnetic catapult system developed by General Atomics for the United States Navy. The system launches carrier-based aircraft by means of a catapult employing a linear induction motor rather than the conventional steam piston. EMALS was first installed on the lead ship of ...
Five documentary filmmakers have been chosen to receive Catapult Film Fund’s annual research grant. Each recipient will receive $10,000 in direct support and six months of mentorship from ...
An aircraft catapult is a device used to allow aircraft to take off in a limited distance, typically from the deck of a vessel. They can also be installed on land-based runways, although this is rarely done. They are usually used on aircraft carriers as a form of assisted take off . In the form used on aircraft carriers the catapult consists of ...
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 ...