Wyvernfan, sorry for the delay in replying.

Yes, I believe that our S.1. is the only one capable of running, and yes they are Gyron Juniors.
The port engine has a large crack in the compressor casing so it doesn’t get lit often! The starbd engine has quite a lot of vibration, although that was fitted by us a few years ago. The original was seized solid. We do have another spare in the engine shed, but I think that may have a few bits missing.

As for taxying, well very unlikely, the nose wheel needs replacing now. We have been promised a new one but haven’t seen it yet. I wouldn’t put it beyond the bounds of possibility, but!!!!

Correct Peter, it is the only ground running S.1 in the world, the only other one that could run again is XK532, but not without a huge amount of work.

The nose wheel is now with us, so you should see it within the next month, Milt knows all about it.