Thanks, Bob Viking!
I only did 146 hrs on the Hawk and it was all some 32 years ago, so thanks again for the correction.
The Hawk did have some quirks back then - I seem to recall that pressing the relight button in flight caused all manner of things to happen as accessories were dropped off line? On taxying out at Chiv, I noticed that the GTS had started itself. Tried shutting it down again (can't remember how one did that), but it started itself again - so I binned the trip. It turned out to be a short in the throttle switch, which would have meant that as soon as the weight had come off the wheels on take-off, I'd have had lots of unwelcome captions, nicht wahr?