MG 15 machine gun

MG 15 machine gun

Infobox Weapon
name= MG 15 machine gun


caption= MG 15 in left beam mounting inside a Ju 52, and above it storage brackets for 12 MG 15 magazines, with one magazine mounted.
origin=flagcountry|Nazi Germany
type= GPMG
is_ranged=yes
service=
used_by= Germany
wars= WW2
designer= Theodor Bergmann
design_date=1915
manufacturer= WW1 Bergmann, Third Reich Rheinmetall
unit_cost=
production_date=
number=
variants= Modular design
weight= 12.4 kg loaded with gunsight and cartridge bag
length= 1078 mm (without attachments)
part_length= 600 mm
cartridge=7.92x57mm Mauser
caliber=
action= Recoil
rate= 1,000 - 1,050 rpm
velocity= 755 m/s (2,476.4 ft/s)
range=
max_range=
feed= Sprung magazine
sights= Various types

The MG 15 was a 7.92 mm (0.31 in) machine gun designed specifically as a hand manipulated defensive gun for combat aircraft during the early 1930's. By 1941 it was replaced by other types and found new uses with ground troops.

History

Developed from the MG 30 which was designed by Rheinmetall using the locking system invented by Louis Stange in the mid to late 20's. Though it shares the MG15 designation with the earlier gun built by Bergmann, the MG15nA (neuer Art meaning new model having been modified from an earlier design) has nothing in common with the WWII gun except the model number. The WWI gun used a tipping lock system while the WWII aircraft gun uses a rotating bolt/lockring. The WWII MG15 was used in nearly all Luftwaffe aircraft with a flexible-mount defensive position.

It was a modular design with various attachments that could be quickly attached or removed. Operation was easy and the bolt remained in the cocked position after expending the 75 round double drum (also called a "saddle drum") magazine, negating the need to re-cock once a fresh magazine was installed.

The MG15 fires from an open bolt meaning that the bolt stays back when the gun is ready to fire. Pulling the trigger releases the bolt and allows it to go forward, stripping a round from the magazine. The bolt continues pushing the round into the chamber and locks up when the lockring rotates and locks the bolt and barrel extension together. At this point the trip lever releases the firing pin and the gun fires. Recoil pushes the barrel,lock and bolt backwards until the lockring hits a cam that rotates it unlocking the bolt and barrel. Inertia carries the bolt backwards until the base of the fired case hits the ejector flinging the empty out of the receiver. If the trigger is held down the cycle will continue. If the trigger is released the bolt will remain in the rearward position.

The 75 rounds of ammunition was evenly distributed in each side of the magazine with a central feed "tower" where the ammunition is fed to the bolt. Various methods where used to secure the magazines in the aircraft, while a carrier of 3 mags each where used on ground. The drums were preloaded prior to takeoff so that the gunner did not waste time loading (however reloading could be done as quickly as 6 seconds). Ammunition was fed by a spring forced spiral double-drum containing 75 rounds total (not 150 as is often mistaken). This combined with a firing rate of 1000+ rpm means it could empty the magazine in 4.5 seconds or less. Typical practice was to provide at least 10 reloads for each gun on the aircraft, not including the magazine on the gun.

Starting in late 1940 the MG 15 was replaced by the Mauser 7.92 mm MG 81, MG 81Z (twin-MG 81), MG 131 13 mm machine guns, or MG 151/20 20 mm cannons. Many MG 15s were modified for infantry use as heavier weapons replaced them on Luftwaffe aircraft. There were also some watercooled ground versions of the gun made in one of the Balkan countries though little is known of the history of these. There are a number of pictures showing the guns, both aircraft and ground versions, with 25rd magazines from the MG13 but the magazines don't actually work with the MG15. Apparently some advertising exec figured a good way to sell parts kits without including the expensive double drums. Official numbers of conversions was about 17,648 by January 1, 1944, although additional conversions may have been done as well.

The MG 15 was used in the Japanese aircraft as the Type 98 flexible-mounted machine gun.

pecifications

*Calibre: 7.92 +/- .04 mm
*Cartridge: 7.92x57 mm Mauser
*Round weight: 35.5 grams (cartridge 24 grams, bullet 11.5 grams)
*Muzzle velocity: 755 m/s
*Rate of fire: 1000 (possibly up to 1050) rpm

*Length : 1078 mm (without attachments)
*Barrel length: 600 mm

*Weight unloaded with gunsight and cartridge bag: 8.1 kg
*Weight loaded with gunsight and cartridge bag: 12.4 kg
*75 round Magazine unloaded: 2.27 kg
*75 round Magazine loaded: 4.24 kg
*Weight of the 2-part loader: 0.72 kg


=External

* [http://www.ima-usa.com/images/XG1532a.jpgMG 15 with bipod and shoulder butt attachment]
* [http://www.ima-usa.com/images/XG1524.jpgMG 15 with water cooled barrel and 25 round magazine]
* [http://www.ima-usa.com/images/GG1500aa.jpgMG 15 75 round magazine closeup]

MG 15 in the media

In "" in the scene set in Mos Eisley you will see an Imperial Stormtrooper carrying an MG 15.

Due to its existence in the movie, it has also been [http://firststrikemod.wikia.com/wiki/MG-15_Light_Blaster_Rifle listed in a popular SW game] .

References

*L.Dv 110 Beschreibung und Bedienungsvorschrift für das M.G. 15, Manual for using MG 15 owned by contributor (may not be correct German spelling)
* [http://www.luftwaffe-experten.org/forums/index.php?showtopic=3305 Luftwaffe Experts Message Board topic on MG 15]
* [http://www.ima-usa.com/index.php/cPath/14_212_71?osCsid=73db4ae63f136de008136cf51b6e05c2 Seller of MG 15 parts, many detailed images, excellent reference]
* [http://www.geocities.com/Augusta/8172/panzerfaust5.htm Panzerfaust WW II German Infantry Anti-Tank Weapons Page 5: Machine Guns] .
* [http://www.uzitalk.com/forums/showthread.php?t=32758 MG 15 in private collection, forum site]


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