Type
11 light machine gun, loaded and ready to fire. Note that the hopper is
filled with clips, and additional clips are held in special carrying
case next to the gun.
Type 11 light machine gun, righ side view, bipod folded
Caliber
6.5x50SR
Weight
10.2 kg
Length
1100 mm
Barrel length
590 mm
Feed
Hopper, 30 rounds
Rate of fire
500 rounds per
minute
In 1922, the Imperial Japanese Army (IJA) adopted the Type 11 Taisho
light machine gun, an unusual design created by the Gen. Kijiro
Nambu. This weapon used one of the most unusual feed systems of the
time, with a fixed hopper refilled with standard rifle clips. Firing
the 6.5mm rifle ammunition, this weapon was reasonably light, although
the side-mounted hopper resulted in an awkward balance. The basic
action was an adaptation of the Type 03 MMG.
The
Type 11 machine gun is a gas operated, air-cooled, hopper-fed automatic
only weapon. It employs a detachable barrel, which is finned at the
front (ahead of the gas port). The rear part of the barrel is enclosed
within a tubular jacket which fits firmly around the barrel to provide
better cooling, as the external surface of the jacket is heavily
finned. The barrel jacket is screwed to the receiver, but the barrel
removal procedure requires a complete disassembly of the gun. The
gas system employs a long-stroke gas piston, located below the barrel.
The gas block is provided with a manual gas regulator, the gas piston
tube is attached to the barrel jacket. The locking system is basically
the same as in the Type 03 machine gun;
it uses the same vertically-sliding locking block which is operated by
cams on the operating rod and its rear vertical projection. To engage
the receiver with the side locking lugs, the locking block is lowered;
to unlock it, it is lifted. The firing mechanism is relatively
simple and provides only automatic fire. The trigger, sear and manual
safety are mounted on a separate unit, which also forms a metallic
tubular pistol grip and a base for the shoulder stock. Firing is from
an open bolt. The feed system is one of most unusual of its kind, as
it employs a side-mounted hopper which is filled with six standard
stripper clips, holding five rounds each. Clips are stacked in the
hopper and pressed down by a swinging top cover, which can be opened up
and forward for loading or unloading.The bottom of the hopper is fitted
with a toothed rack, which moves laterally to slide the cartridges
sideways (from right to left) to the feed rightmost cartridge from the
lowest clip into the receiver. The rack is operated through a cam slot
cut in the operating rod. Once all five rounds from the clip are
expended, the clip can freely fall down through an aperture in the
bottom of the hopper, giving way to the next full clip. The hopper can
be topped up with loaded clips at any time, but to do so in a quick
manner it is desirable to leave this function to the second member of
the crew. The hopper can be easily detached from the gun for
maintenance or repair. Because of the inherent lack of primary
extraction, this gun is also fitted with an integral oiler. When
entering the feed position, each cartridge trips the oiler valve, and a
small amount of oil is then squirted on the cartridge just before it is
fed into the chamber. The standard furniture for the Type 11 LMG
includes a folding bipod attached to the barrel jacket, and a wooden
butt which is attached to the base of the pistol grip. Unlike some
other pre-WW2 light machine guns, it also can be used from a “sustained
fire” tripod, although the weapon itself is hardly suitable for a
sustained fire role.