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The first mention of radar in the UK was a 1930 suggestion made by W. A. S. Butement and P. E. Pollard of the Army War Office's Signals Experimental Establishment (SEE). [1] [2] They proposed building a radar system for detecting ships to be used with shore batteries, and went so far as to build a low-power breadboard prototype using pulses at 50 cm wavelength (600 MHz).
A view through a Tasco ProPoint red dot sight. The mid- to late 1970s saw the introduction of what are usually referred to as red dot sights, a type that gives the user a simple bright red dot as an aiming point. [27] The typical configuration for this sight is a compact curved mirror reflector design with a red light-emitting diode (LED) at ...
Two Ford Mondeo sedans, a Mk II (grey, left) and a Mk III (blue, right) The word mark, followed by number, is a method of designating a version of a product. It is often abbreviated as Mk or M. This use of the word possibly originates from the use of physical marks made to measure height or progress.
It had a simple block breech with percussion gear, and was mounted on a non-recoiling frame consisting of a hydraulic buffer, trunnion block, and rear guide tube. Hand grips were mounted on the guide tube. [2] The gun had a large muzzle brake to reduce recoil. [1] Vickers manufactured the gun at its plant in Crayford, England.
MKII or Mortal Kombat II, a video game; Gundam Mk-II, a robot of the fictional Gundam series; Mark II (robot), a giant robot built by MegaBots Inc. Mark II, a 1986 New Zealand film; Mark II line-up of rock band Deep Purple, the most celebrated line-up in the band's life span, with Ian Gillan, Ritchie Blackmore, Jon Lord, Roger Glover and Ian Paice
II design was essentially a rationalized and cleaned up Mk. I, differing little in terms of the electronics, but considerably in terms of layout, wiring and construction. Among the changes was the separation of the receiver electronics from the display so either could be fixed by swapping them out separately, and using a selection of standard ...
The pilot/gunner had to look into the narrow field folded prismatic telescopic sight at the top of the device, a drawback corrected in the later Mark II. After tests with two experimental gyro gunsights which had begun in 1939, the first production gyro gunsight was the British Mark I Gyro Sight, developed at Farnborough in 1941.
Mk 2 grenade, a hand grenade used by the United States military starting in World War II; Marte Mk2, a radar-guided helicopter and ship-launched short/medium-range anti-ship missile weapon system developed by Oto Melara and used by the Italian Navy