He's probably known for his use of the Flying V more than the Silver Jet but the Jet did seem to be his favored guitar for a bit.
I'm not sure if Tim uses is much these days. Seems most of the recent pics, he's using the V, a 335 and a SG.
They're from Belfast, Ireland. '1977' is probably their most famous album. There is a hits album called 'Intergalactic Sonic 7's". Great band that is worth being given a chance.