Vickers K, gas operated light Machinegun.
My favourite use was on Lancaster ED825, which was one of the Dambusters aircraft. Though the gun was removed the actual appature remained and was discovered at the recent excavation of the aircraft
Interesting, thanks, I saw some footage of one lancaster shot dow in the operation, near the wreck a german soldier carried a twisted and burned machinegun wich was very much like the K model.
Vickers āSā 40 mm automatic cannon
For the sake of europeans and others Metric system followers:
A inch: 25,4 mm
A yard: 0, 914 meters
A pound: 0,453 kg
A ounce 0,028 kg.
A foot: 0,3048 meters.
A dramatic picture showing Hurricane IID using its 40 mm vickers against german armor.