M87
12.7 mm helicopter machine gun installation with M87
An airborne installation of the 12.7 x 99 mm heavy machinegun M87 on a cradle, with nitrogen pneumatic cocking, a 150-round belt and a control box that indicates ammunition, breech-block position, brake condition and working fluid pressure, firing selected modes triggered from the aircraft control stick.
Also written: 12.7x99
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Specification
| Weapon | Heavy machinegun M87, caliber 12.7 x 99 mm, with the cradle |
|---|---|
| Muzzle velocity | 845 m/s |
| Effective range | 2000 m |
| Rate of fire | 680 - 800 rounds/min |
| Magazine capacity | 150 rds in the belt |
| Pneumatic cocking working fluid | Nitrogen |
| Working pressure | 8 bar |
| Tank capacity | 3-5 times |
| Voltage | 28 V ± 4 |
| Firing mode, short bursts | 5 rounds |
| Firing mode, long bursts | 10 rounds |
| Firing modes | short bursts, long bursts, sustained bursts |
| Control box features | Indication of available ammunition, indication of the breech-block position, cocking, indication of the brake condition, indication of the working fluid pressure, locking/unlocking the weapon, selection of firing mode, triggering with the aircraft control stick |
All data provided for information purposes; final specification is defined per contract. Full technical data sheets are issued on request against a stated end-user.