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Oerlikon GAI-D01


Hispano-Suiza HS.666A


Overview

Oerlikon GAI-D01

Oerlikon GAI-D01 twin 20mm towed anti-aircraft gun.
Source: Unknown author - © Copyright lies with original owner

Origin
France
Type
Anti-aircraft gun
Entered service
Early 1980's
Status
In service
Development
Mid 1970's
Developer
France - Hispano-Suiza
Production
1978 - ? (Oerlikon)
1985 - 2010's? (MKEK)
Producer
France - Hispano-Suiza
Switzerland - Oerlikon Contraves
Turkmenistan - MKEK-Cansas
Number produced
At least 500
Designations
Hispano-Suiza HS.666A
Notable users
Turkey

Details

Facts GAI-D01
General
Origin
Switzerland
Type
Towed anti-aircraft gun
Crew
1 on mount
5 in total
Dimensions - travel configuration
Weight
1.8 t with ammunition
Length
4.59 m
Width
1.86 m
Height
2.34 m
Dimensions - fire position
Weight
1.330 kg wiht ammunition
Length
4.55 m
Width
1.81 m
Height
1.3 m with guns horizontal
Ordnance
Type
2x 20mm Oerlikon KAD autocannon
Ammunition
2x 120 round belt
Muzzle velocity
1.040 m/s for HEI-T
1.100 m/s for AP-T
Elevation
-3° to +81°
Elevation rate
48 °/s
Traverse
360°
Traverse rate
80 °/s
Operation
Sights
Galileo P56 computing sight, 5x magnification and 12° view
Fire control
Optional integration with LPD-20 radar
Emplacement time
1 minute
Firepower
Rate of fire
2.000 rpm cyclic, combined
Range
1.5 to 2 km vs aircraft
Carriage
Type
2 wheel detachable trailer
Three outriggers in fire position
Gun shield
Yes
Mobility
Towing vehicle
4x4 light truck
Autonomous mobility
Can be manhandled over short distances
APU
Yes, for power assisted aiming

Media

Related articles

30mm HS.661

The GAI-D01 (HS.666A) uses the same tripod mount with Wankel engine, gun shield and fire control computer as the HS.661B which is armed with a single 30mm HS.831L autocannon.

Read more about 30mm HS.661