Hispano-Suiza HS.820
Channel: Hoang Nguyen Ngo (Official Channel)
Date: 23/06/2022

HS.820
Type:
autocannon
Place of origin:
Swiss
Mass
66 kg (146 lb) (without ammunition)
Length
2,489 mm (98.0 in)
Barrel length
1,727 mm (68.0 in)
Caliber
20×139mm
Action
Gas unlocked, delayed blowback
Rate of fire
1000 round/min
Muzzle velocity
1,050 m/s (3,400 ft/s)
Effective firing range
1,500 m (4,900 ft) against aerial targets