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The root-mean-square (RMS) range spread is then about 400 ps. To determine the distance to the reflector to 1 mm precision, or 7 ps, by averaging, the measurement needs at least (400/7) 2 ≈ 3000 photons. This explains why a much larger system is needed to improve the existing measurements—the pre-APOLLO 2 cm RMS range precision required ...
The R-4D is a fuel-film cooled engine. Some of the fuel is injected longitudinally down the combustion chamber, where it forms a cooling film.
The 7 mm version first appeared around 1980, with the .25 caliber appearing in 1987. The larger calibers provide more downrange energy, and resist wind deflection better than the original .22 caliber (5.56mm) bullet, and the moderate case capacity of the .223 Remington works well in the short pistol barrels.
A Sea Rogue remote weapon system fitted with a 12.7 mm machine gun mounted on a Valour class frigate of the South African Navy.. The Reutech Rogue remote weapon system is a remotely controlled turret system for weapons ranging from 7.62 mm general purpose machine guns up to 20 mm cannons or a 40mm automatic grenade launcher.
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Remington introduced the 7mm Short Action Ultra Magnum (SAUM) cartridge in 2002 to compete with the 7mm Winchester Short Magnum cartridge. It was designed specifically for the Remington Model Seven Magnum rifle, and intended primarily for long-range hunting use.
Penn State University is playing its first game in the College Football Playoff in just a few days and is facing a shakeup in the quarterback room thanks to the sport’s wide-open transfer rules.