Fesmokie, I'll try and have a shuftie in the loft tonight (apart from being chaos up there it's ******* freezing!). I reckon it would be pretty similar to Matspart3's photo but might be a little more from the side.
I can only ever remember seeing N500LN on one occasion when it rocketed over my home on its way to one of the West Malling shows which for some reason I didn't attend... That must have been at least twenty years ago; it's certainly been here for quite a while, still down at Exeter?
OH-SIR/G-BMEW was at North Weald for a while with Aces High around 1986.