KSP-76

The KSP-76 was a soviet assault car that began development in 1943. It mounted a 76 mm divisional gun M1942 (ZiS-3) gun on a wheeled chassis in an attempt to provide support for scout and airborne units. The light chassis proved unable to withstand repeated firings of the gun and the project never got beyond the prototype stage.

Description

The KSP-76 had a crew of three. It consisted of a commander/gunner, gunner/loader, and driver. The hull was divided into three parts. The gun was mounted at the front, the fighting compartment was located at the middle, and the engine was found in the rear. The fuel tank, which had a capacity of 140 liters, was placed to the left of the engine. Fifty four rounds of 76.2mm ammunition were provided.

References

KSP

KSP may refer to:

FN MAG

The FN MAG is a Belgian 7.62 mm general-purpose machine gun, designed in the early 1950s at Fabrique Nationale (FN) by Ernest Vervier. It has been used by more than 80 countries, and it has been made under licence in several countries, including Argentina, Egypt, India and the United Kingdom.

The weapon's name is an abbreviation for Mitrailleuse d'Appui Général, meaning general-purpose machine gun (GPMG). The MAG is available in three primary versions: the standard, infantry Model 60-20 machine gun, the Model 60-40 coaxial machine gun for armoured fighting vehicles and the Model 60-30 aircraft variant.

Design details

The MAG Model 60-20 is an automatic, air-cooled, gas-operated machine gun, firing belt-fed 7.62×51mm NATO from an open bolt.

Operating mechanism

The MAG uses ignited powder gases vented through a port in the barrel to propel a gas piston rod connected to the locking assembly (it uses a long-stroke piston system). The barrel breech is locked with a vertically tilting, downward locking lever mechanism that is connected to the bolt carrier through an articulated joint. The locking shoulder and camming surfaces that guide the locking lever are located at the base of the receiver. The MAG uses a series of proven design concepts from other successful firearms, for example the locking mechanism is modeled on that of the Browning M1918 (BAR) automatic rifle, and the feed and trigger mechanisms are from the WWII-era MG42 universal machine gun.

FN Minimi

The Minimi (short for French: Mini Mitrailleuse; "mini machine gun") is a Belgian 5.56mm light machine gun developed by Fabrique Nationale (FN) in Herstal by Ernest Vervier. First introduced in 1974, it is now in service in more than 75 countries. The weapon is currently manufactured at the FN facility in Herstal and their US subsidiary FN Manufacturing LLC.

The Minimi is a machine gun firing from an open bolt. It is an air-cooled weapon, capable of fully automatic fire only. It can be belt fed or fired from a magazine.

The Minimi is configured in several variants: the Standard model as a platoon or squad support weapon, the Para version for paratroopers and the Vehicle model as secondary armament for fighting vehicles.

Design details

Operating mechanism

The Minimi uses a gas-actuated long-stroke piston system. The barrel is locked with a rotary bolt, equipped with two massive locking lugs, forced into battery by a helical camming guide in the bolt carrier. Upon firing, the piston is forced to the rear by expanding propellant gases bled through a port in the barrel near the muzzle end. The piston rod acts against the bolt carrier, which begins its rearward motion guided on two rails welded to the receiver walls, while the bolt itself remains locked. This sequence provides a slight delay that ensures chamber pressure has dropped to a safe level by the time a cam in the bolt carrier rotates and unlocks the bolt, increasing extraction reliability as the empty cartridge casing has had the time to cool down and contract, exerting less friction against the chamber walls.