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If a helicopter suffers a power failure a pilot can adjust the collective pitch to keep the rotor spinning, generating enough lift to touch down and skid in a relatively soft landing. [ 3 ] The collective pitch control in a Boeing CH-47 Chinook is called a thrust control , but serves the same purpose, except that it controls two rotor systems ...
The drum magazine, buttstock, pistol grip and forend with vertical grip are all made of an impact-resistant polymer. [ 8 ] [ 9 ] [ 10 ] The Mark 3/3A can fire both the American 5.56×45mm M193 cartridge (with 1:12 (305 mm) twist barrel fitted) or the heavier SS109/M855 cartridge (178 mm (1:7 in) twist rate barrel).
Gunsmiths may adjust the length of pull of custom-built firearms or older firearms by cutting off a portion of the buttstock or adding a recoil pad to the buttstock. [3] Some sources [ 1 ] [ 4 ] suggest a shooter's optimum length of pull will allow the butt of the firearm to exactly reach the inside of the elbow when the hand of that arm grips ...
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An adjustable spanner (UK and most other English-speaking countries), also called a shifting spanner (Australia and New Zealand) [1] or adjustable wrench (US and Canada), [a] is any of various styles of spanner (wrench) with a movable jaw, allowing it to be used with different sizes of fastener head (nut, bolt, etc.) rather than just one fastener size, as with a conventional fixed spanner.
A standard CZ 75 with a slightly shortened grip and 3.75-inch barrel. There is a version available chambered for the .40 S&W cartridge. CZ 75 D PČR Compact Very compact – similar to the P-01 in size, with an aluminum alloy frame also but lacks an M3 rail frame and features a smaller muzzle point and snag free sights. CZ 75 Semi-Compact
Reports of bog bodies surfaced during the early 18th century. [1] In 1965, the German scientist Alfred Dieck catalogued more than 1,850 bog bodies, but later scholarship revealed much of Dieck's work was erroneous. [2] Hundreds of bog bodies have been recovered and studied, [3] although it is believed that only around 45 remain intact today. [4]
A death grip is an extremely tight grip, such as that exerted by people in a panic for fear for their life. This was commonly thought to be a risk when rescuing drowning people—that they would cling to their rescuer with a death grip which would cause them both to perish.