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Pioneering can be used for constructing small items such as camp gadgets up to larger structures such as bridges and towers. These may be recreational, decorative, or functional. [1] [2] Pioneering is used to teach practical skills, teamwork and problem solving. It is widely used in Scouting and Girl Guiding. Many Scout and Guide groups train ...
The Onager was a Roman torsion powered siege engine. It is commonly depicted as a catapult with a bowl, bucket, or sling at the end of its throwing arm. Trebuchet: 4th Century BC China: Similar to the catapult, but uses a swinging arm to launch projectiles. It is usually considered to be stronger than the catapult. [4] Oxybeles: 375 BC Greece
The West Spring Gun was a bomb-throwing catapult used by British, Canadian and Australian forces during World War I. It was designed to throw a hand grenade in a high trajectory into enemy trenches .
The Vought OS2U Kingfisher is an American catapult-launched observation floatplane. It was a compact mid-wing monoplane, with a large central float and small stabilizing floats. Performance was modest because of its low-powered engine. The OS2U could also operate on fixed, wheeled, taildragger landing gear.
A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two tubes or strips made from either a natural rubber or synthetic elastic material. These are 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 ...
The British War Office issues instructions specifying the aircraft and armament Royal Flying Corps squadrons are to have ready for defense of the United Kingdom against German airships. One aircraft is to be kept ready for immediate takeoff at all times, with the Martinsyde Scout preferred over other aircraft. The instruction also lists a ...
The Roman onager, a catapult powered by rope torsion, was sometimes referred to as a stone-thrower. Archimedes reportedly designed a steam-powered gun to shoot spherical projectiles using the same principle of gas pressure as a gunpowder cannon. Leonardo da Vinci drew a design for a steam gun that he named "Architronito", citing Archimedes. [2]
Pioneering Spirit performed her first commercial lift, removal of Repsol's 13,500-tonne (14,900-short-ton) Yme mobile offshore production unit (MOPU) on 22 August 2016. [33] Located in the Yme field in the Norwegian sector of the North Sea , approximately 100 km (54 nautical miles) west of Stavanger , the MOPU was a jack-up type platform ...