FG 42
The FG 42 is a selective-fire 7.92×57mm Mauser automatic rifle produced in Nazi Germany during World War II. The weapon was developed specifically for the use of the Fallschirmjäger airborne infantry in 1942 and was used in very limited numbers until the end of the war.
It combined the characteristics and firepower of a light machine gun in a lightweight form slightly shorter than the standard-issue Karabiner 98k bolt-action infantry rifle. Considered one of the most advanced weapon designs of World War II, the FG 42 influenced post-war small arms development, and many features of its design, such as general shape, stock style, gas-rotating bolt operation and sheet metal and plastic construction were copied by the US Army when it developed the M60 machine gun.
History
At the time of the Battle of Crete, German Fallschirmjäger were equipped with the same assortment of small arms as the Heer, carrying only 9×19mm Parabellum chambered pistols and hand grenades on them during parachute jumps, with 9×19mm Parabellum submachine guns, 7.92×57mm Mauser chambered rifles, and crew-served weapons stored separately in containers that were dropped from the wing of the exit craft. The German RZ parachute harness, with one single riser and two straps attached to the body, making the paratrooper land on his hands and knees in a forward roll, did not allow heavier equipment such as rifles and machine guns to be safely carried during airborne jumps. At Crete, long-range rifle and machine gun fire from dug-in Commonwealth defenders inflicted heavy casualties on the outgunned German paratroopers in the early stages of battle as they attempted to retrieve their support weapons from containers scattered all over the battlefield. These combat experiences demonstrated the need for a rifle that could be carried by the paratrooper during a drop.The classifications of the development and production Ausführungen are as follows:
- Type A - First design
- Type B - Revised model prototype
- Type C - "LC-6" prototype
- Type D - First Fallschirmjägergewehr; acceptance trials
- Type E - First production Fallschirmjägergewehr
- Type F - First stamped receiver Fallschirmjägergewehr
- Type G - Final production model Fallschirmjägergewehr
Development
The RLM attempted to initiate a formal weapons development program through the Heereswaffenamt —responsible for German small arms development—but conflicting priorities and friction with the Army led to an independent development by the Luftwaffe. Plans were laid out to form a central authority for the new program at the Luftwaffe's Erprobungstelle coastal testing station at Tarnewitz. The engineers on staff had acquired considerable expertise developing lightweight automatic weapons, having successfully converted the MG 15 aircraft machine gun to a ground configuration. However, due to the high casualties sustained by the paratroopers during Operation Mercury, Hitler changed his mind about the usefulness of airborne assaults and the plans were terminated. Nevertheless, Luftwaffe ''Reichsmarschall Hermann Göring privately ordered the continuation of the project.
The RLM went directly to German industry with its plans—the so-called LC-6 specification issued 14 December 1941 mentioned amongst others that the weapon should not exceed in length, should not be significantly heavier than the Karabiner 98k bolt action standard service rifle, should be able to fire single shots from a closed bolt, provide fully automatic fire from an open bolt, feed from detachable 10- or 20-round magazines and be able to mount a bayonet and use rifle grenades. Louis Stange converted some FG 42 into 7.92×33mm Kurz, which was an intermediate cartridge promoted by the Heer, the Luftwaffe'' favored the long-range potential of the 7.92×57mm Mauser full-power rifle cartridge and this chambering was one of the main design prerequisites.
Prototypes
Six manufacturers were solicited for prototype designs: Gustloff-Werke, Mauser, Johannes Großfuß Metall- und Lackierwarenfabrik, C.G. Hänel, Rheinmetall-Borsig and Heinrich Krieghoff Waffenfabrik. Several contracts were awarded but only a few prototypes are known to have been submitted. Mauser offered a version of the MG 81 while Krieghoff presented a rising-block prototype, which too was quickly dropped. A design credited to Rheinmetall-Borsig's Louis Stange of Sömmerda who had previously worked on the MG 34 proved satisfactory and underwent military trials conducted by the GL/C E-6 test station at Tarnewitz in mid-1942. This early prototype, known under the factory designation Gerät 450 or Ausführung "A", was intended to be a pure sheet metal design, using pressed steel in the construction of the receiver, buttstock and corrugated handguard. The proposed system of operation was modeled on that used in World War I Lewis light machine gun, with a gas-operated turning bolt action geared to a spiral recoil spring. The type "A" was never produced beyond model form, but the basic design layout was retained for further development.With the basic characteristics of the LC-6 accepted, a series of modifications followed. The revised Ausführung "B" replaced the sheet metal handguard with a resin-impregnated fiber type that provided protection against heat and a better grip when wet.
These tests exposed several shortcomings, addressed by Stange in April 1942 with the LC-6/II prototype. The prototype was then submitted to a series of endurance tests led by the HWA and further modified to increase functional reliability and durability, resulting in the final LC-6/III prototype variant that was ultimately accepted into production as the FG 42. Fifty rifles were fabricated by Rheinmetall-Borsig for evaluation purposes by the end of 1942.
A pre-series batch of 50 rifles was produced in early 1943 and 6 examples were sent to GL/C E-6 for additional testing. Almost identical to the LC-6/III, these guns differ from later models by using a smooth sheet metal buttstock and an experimental muzzle brake. The weapons experienced serious malfunctions: one rifle suffered a catastrophic failure after firing only 2,100 rounds, a soldier was injured when attempting to fire a rifle grenade and the pressed metal buttstock would deform after launching a small number of rifle grenades.
Production
Several other improvements were made before being authorized for large-scale production. The original Rheinmetall design used chrome-nickel steel heavily in many essential components, a strategic alloy in short supply. When the Luftwaffe was finally given permission to produce 3,000 rifles for combat trials, the material specifications were changed to accommodate the use of manganese steel as a substitute. The Heinrich Krieghoff company of Suhl was contracted to manufacture the FG 42 in limited quantity as Rheinmetall did not have the capacity to bring the FG 42 into serial production.The weapon system underwent continuous development. Its expedited development, remedial changes to the original design and ever-changing Luftwaffe requirements resulted in a myriad of variants. Post-war literature typically identifies three versions, however the Germans did not give them separate designations; the Modell I, and Modell II were never officially referenced and period documents simply refer to the weapon as the 'Fallschirmjägergewehr 42' or "FG 42", and the reference was always made to the latest production model.