For many years the Wessex was the forerunner with regards to PNG/NVG ops because of Northern Ireland. On my first tour on 72 Sqn 80-83 the cockpits weren't compatible so the only people using firstly hand held PNG and then helmet mounted NVG were the crewman. The pilot flew us to an IP, then we took over navigating to the correct field and put a White Light Nite Sun on it for them to land in. By my second tour 85 -87 the cockpits were modified and all the crew were on Goggles using Black Lite Nite Sun. I believe that 72 Sqn was the first squadron to have all aircrew and aircraft capable of NVG ops.