20mm Hispano-Suiza HS.820
Oerlikon KAD | M139
Overview
20mm Hispano-Suiza HS.820
20mm Hispano-Suiza HS.820 with left hand single feed mechanism.
Source: Unknown author -
© Copyright lies with original owner
Switzerland - Oerlikon-Contraves (since 1970)
United States - Possible US production of M139
M139 (US service)
Details
Application
Oerlikon GAI-D01
The Hispano-Suiza HS.666A twin gun mount is armed with two HS.820 autocannon. This was renamed GAI-D01 with KAD autocannon after acquisition by Contraves.
HS-30
The West German SPz 12-3, also known as HS-30 or Schützenpanzer Lang, is armed with a HS.820 autocannon in a one man turret. A total of 2.000 rounds are carried for this gun.
VDAA
The M3 VDAA is fitted with a TA-20 turret developed by Hispano-Suiza with two HS.820 autocannon. Since all production took place after sale to Contraves, all are fitted with the renamed KAD autocannon.
Related articles
30mm Hispano-Suiza HS.831
The HS.820 is a downscaled version of the 30mm HS.831 design.
20mm Rheinmetall Rh-202
The German Rh-202 autocannon fires the same 20x139mm ammunition as the HS.820.
20mm Giat M693
The French M693 autocannon fires the same 20x139mm ammunition as the HS.820.