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Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
Martin-Baker Mk.9 on display at the Solent Sky aviation museum The Martin-Baker Mk.9 is a British rocket-assisted ejection seat designed and built by Martin-Baker . Introduced in the late-1960s, the zero-zero capable Mk.9 has been installed in several European combat aircraft types and was also used in experimental aircraft.
Martin-Baker Mk.8 is the designation given to two distinct British ejection seat types designed and built by Martin-Baker.The original use applies to a seat developed for the cancelled BAC TSR-2 strike aircraft project of the 1960s, re-use of the designation applies to a lightweight version of the Martin-Baker Mk.10 seat for the Short Tucano and other similar military training aircraft.
BL 9.2 inch gun Mk IX–X (1899), a British 9.2 inch coastal defence cannon; Armstrong Whitworth 12-inch 40-calibre naval gun Mark IX (1901), a British naval gun that was later used on land in the BL 12 inch Railway Gun; 21in Mk IX torpedo, a British 21-inch torpedo; Bliss-Leavitt Mark 9 torpedo (1915), an American 21-inch torpedo
Reflector sights employ some form of "reflector" to allow the viewer to see the infinity image and the field of view at the same time, either by bouncing the image created by lens off a slanted glass plate, or by using a mostly clear curved glass reflector that images the reticle while the viewer looks through the reflector.
The 9.2-inch Mk XI gun introduced in 1908 increased the bore length to 50 calibres in an attempt to increase the velocity still further, but proved unsuccessful in service and was phased out by 1920. The Mk X was hence the final Mark of 9.2-inch guns in widespread British Commonwealth service. The BL 9.2 also affected the development of radar.
In 1946, a Mk VIII (MT818) was the first Vickers-built trainer built as a demonstrator, but in 1948, 10 Spitfire T Mk IXs, were exported to India. In 1951, a further six TR 9 trainers were converted from the standard Mk IX to train pilots for the Irish Air Corps (IAC) Seafire fleet. The Spitfires provided transition training that included ...
The Bliss-Leavitt Mark 9 torpedo was a Bliss-Leavitt torpedo developed and produced by the E. W. Bliss Company and the Naval Torpedo Station in Newport, Rhode Island in 1915. The Mark 9 was originally intended to be used on battleships. Before the Mark 9 could be issued, however, use of torpedoes on battleships was discontinued and Mark 9 ...