G-SLIM Hot Air Balloon

G-SLIM is a Thunder AND Colt Colt 56A hot air balloon, built in 1985 and registered in the UK. No public sightings of G-SLIM have been logged yet. There is one photograph of it in the archive.

Also written G SLIM or GSLIM.

First photographed here by Bill Teasdale on 7 September 2026.