G-BTCS Hot Air Balloon

G-BTCS is a Thunder AND Colt Colt 90A hot air balloon, built in 1991 and registered in the UK. No public sightings of G-BTCS have been logged yet. There is one photograph of it in the archive.

Also written G BTCS or GBTCS.

First photographed here by Richard Gahan on 7 September 2026.