I'll defer to you superior knowledge on the Rover block! Lovely engine, I had the pleasure of driving several Rovers made in the days of real Motor Cars! Says on the CAA register that it's Gypsy powered these days, assume that it is right.
If you want to "acquire" a Rover Gas Turbine, hide until closing time with your toolbox in the Car Museum at Syon Park - there's a Rover in there with one under the bonnet - or there was twenty years ago!! Dunno what it was rated at...
Nigel Brendish was lost in an Aerobat (G-XUSA) the reasons for the hairy aerobatics is not something I should discuss on an open forum. His Lycoming Chipmunk was G-IDDY which went to the USA. Not sure what happened to G-MUNK, it was destroyed, Gypsy powered though... useful thing the G-INFO database...
Nice aeroplanes, Chippies, my dad learned to fly on them in Kenya, and I got the odd ride in the back!
Gipsy? Gypsy? Let's call the whole thing off!