Originally Posted by
evilroy
I'll put this here, and hope.
During NAV / OBS training in the RAAF HS748s, we used to use the Ground Position Indicator Mk7 (GPI Mk7). Going down memory lane, I wanted to collect some information on it but so far have come up empty handed.
The best I have found is a reference that it may have also been used on RAF Valiants.
Does anyone know of any web-based sources for pictures and / or technical data on the GPI Mk7?
Memory fade on my part but wasn’t it the Mk4 in the late 80s? They were well past their sell by date and, while waiting for the Draggie replacement, tried to buy some old stock from the RAF. The list price was quarter of a mil sterling for 8 sets which were never going to see the light of day anywhere else. We’re they replaced in the interim by Mk7?