Ejection Seat Rig
The rig was still being used in the early 1990's at North Luffenham as I used it on my pre-BFTS AV Med course. Great Fun but glad I never had to use one for real. I think it was stopped with the demise of the JP as the JP was probably the only cartridge seat left, with the exception of the maybe the Canberra. Might be wrong though...