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35mm Oerlikon KDA



Overview


Oerlikon KDA

Oerlikon KDA 35mm autocannon. Note the large dual belt feed mechanism on top of the receiver.
Source: Oerlikon Contraves - © Copyright lies with original owner

Origin
Switzerland
Type
Autocannon
Entered service
Mid 1950's
Status
In service
Development
1952 - mid 1950's
Developer
Switzerland - Oerlikon Contraves
Production
Mid 1950's - present
Producer
Switzerland - Oerlikon Contraves
Japan - Japan Steel Works
China - Norinco
Designations
353 MK (early name)

Details


Variants of the Oerlikon 35mm autocannon

KDA

Variant intended for mounting in a self-propelled anti-aircraft gun. Features a twin feed system for HE rounds against aircraft or soft ground targets and AP rounds against armored vehicles.

KDB

Variant intended for use in anti-aircraft mount. Single belt feed only. Feeds from either left or right. Lighter and more compact design than KDA. Standard belt length is 56 rounds.

KDC

Single feed model similar to KDB, but feeds from 7 round clips. Alternatively it is connected to an automatic feed system that holds more rounds.

KDE

Variant for use in infantry fighting vehicles. Intended to be center mounted in a turret. Features left and right hand feed. Switching between feed takes less than 1 second. Magazine fed or connected to a feed system.

Facts KDA KDB KDC KDE
General
Origin
Switzerland
Type
Autocannon
Caliber
Caliber
35x228mm Oerlikon
Feed system
Belt fed, twin feed system, selectable feed
Barrel length
L/90, 3.15 m
Rifling
24 grooves, right hand twist
Muzzle velocity
1.175 m/s for HEI-T
1.050 m/s for AHEAD
1.350 to 1.440 m/s for APDS
Operation
Action
Gas operated
Rate of fire
550 rpm
Recoil force
2.650 kg
Recoil stroke
55 mm
Dimensions
Weight
695 kg
Length
4.74 m
Width
0.36 m
Height
0.65 m

Media


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