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The RPD feeds ammunition from the left side using a metallic, open-link, non-disintegrating belt typically holding 100 rounds of 7.62x39 ammunition. Unlike many other belt -fed automatic weapons, where the rounds must be pulled out the rear of the belt and then pushed forward into the chamber, the RPD uses a simpler "push through" design where ...
[1] [2] He designed a belt-fed light machine gun, the RPD, chambered for the 7.62×39mm intermediate cartridge. [2] Vasily Degtyaryov was awarded the Stalin Prize in 1941, 1942, 1944, and 1949 (posthumously). [1] He died on January 16th of 1949 and was later buried in a cemetery in Kovrov. [1]
It is a belt-fed, open bolt, fully automatic light machine gun with a rotating bolt and a long-stroke gas piston. [1] The RPL-20 uses a non-disintegrating linked belt similar to the RPD. Alternative designs experimented with a dual-feed option (i.e., capable of both magazine- and belt-feed), considered to be an improvement over the RPK-74.
Many modern ammunition belts use disintegrating links. Disintegrating links retain a single round and are articulated with the round ahead of it in the belt. When the round ahead is stripped from the belt and fed into the feed system or chamber, the link holding it is ejected and the link holding the following round is disarticulated.
The Stoner 63/63A is chambered for the now-standard 5.56×45mm intermediate rifle cartridge. When in the belt-fed role, the weapon would feed from a disintegrating metallic linked belt marked "S-63 BRW" which is a scaled-down version of the U.S. M13 link developed for the M60 GPMG. The Stoner 63/63A will not work reliably with the later M27 ...
The M16 has belt-fed light machine gun versions made by several manufactures, [315] [316] [317] including the Ares Defense Shrike 5.56. There are prototype belt-fed AK-47 variants such as PU-21, IP-2 [318] [319] and RPL-20. [320] The M16's lower receiver may also be mated with the AR-57 and .50 caliber bolt-action upper receivers. [321] [322]
The M13 link replaced the older M1 links designed for .30-06 Springfield ammunition, which bound cartridges to each other at the neck, used on the older M1917 Browning machine gun and M1919 Browning machine gun family, though some conversions of the M1919 to the M13 were done, such as on the U.S. Navy Mark 21 Mod 0 machine gun, which saw service in the Vietnam War.
Rack Phase Difference (RPD) is a difference in the elevation between rack teeth of the chords of any single leg of a jackup rig with open truss-type legs. This type of jackup vessel operates with a rack and pinion drive system, as opposed to the pin-hole system found on jackups rigs with tubular legs. The legs are mostly triangular though some ...