|
|
#5
21-07-13, 23:17
|
|||
|
|||
Very nice image.
20 pounder (Tank) Type A barrels had a counterbalance at the muzzle, while Type B barrels (introduced about 1956) had a fume extractor and a 'muzzle swelling'. Balancing the Type B barrel involved welding weights to the topside of the fume extractor. There was also a Type C barrel. All three were interchangeable, but fitting a Type B barrel also involved changes to the depression stop rail around the rear deck, and to the barrel travelling clamp. Mike C 
|
|
|
Threaded Mode