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Department store 50 mm Tasco Specialty Refractor on modified mount (lower left) and a 114mm Sky-Watcher reflector. Tasco's telescopes have a reputation as entry-level equipment. [ 2 ] [ 3 ] It is one of several companies advertising their products based on claims of high magnification, far beyond any attainable usable magnification . [ 2 ]
During World War II, Unertl manufactured the USMC 8x sniper scope mounted on 1903 sniper rifles. [2] [3] In the 1980's, the company became legendary in the sniper community for its 10x USMC Sniper scope designed by John Unertl Jr and mounted on the USMC M40A1 and M40A3 in 7.62mm. A 50 caliber version was used on the USMC SASR.
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Blue force tracking (BFT) systems consist of a computer, used to display location information, a satellite terminal and satellite antenna, used to transmit location and other military data, a Global Positioning System receiver (to determine its own position), command-and-control software (to send and receive orders, and many other battlefield support functions), and mapping software, usually ...
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
Some modern fire-and-forget missiles like the Vympel R-77 and the AMRAAM use a combined approach, by using radar in the normal case, but switching to an antiradiation mode if the jamming is too powerful to allow them to find and track the target normally. This mode, called "home-on-jam", actually makes the missile's job easier, as the jammer ...
There have been a number of modes used historically, but four are in common use today: mode 1, mode 2, mode 3/A, and mode C. Mode 1 is used to sort military targets during phases of a mission. Mode 2 is used to identify military aircraft missions. Mode 3/A is used to identify each aircraft in the radar's coverage area.
The Ballistic Missile Early Warning System (BMEWS) was a radar system built by the United States (with the cooperation of Canada and Denmark on whose territory some of the radars were sited) during the Cold War to give early warning of a Soviet intercontinental ballistic missile (ICBM) nuclear strike, to allow time for US bombers to get off the ground and land-based US ICBMs to be launched, to ...