A proposal to introduce a multi-role 35mm gun system into the RAN could broaden capabilities and provide potential commonality with the ground-based air defence requirement being sought under Project Land 19 Phase 7B. Julian Kerr | Sydney This would, however, require a major change to the status quo, and the acceptance by Navy of the benefits to be derived from a sophisticated gun system in a calibre with which it is not familiar in the Australian environment. Current RAN smaller-calibre weaponry is a mixed bag; 30mm cannon on the Huon class minehunters, 25mm cannon on the Canberra class Landing Helicopter...