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G-BTNL is a Thunder AX10-180 hot air balloon, built in 1991 and registered in the UK. No public sightings of G-BTNL have been logged yet. There is one photograph of it in the archive.
Also written G BTNL or GBTNL.
UK civil aircraft register, 6 Sep 2026
First photographed here by Mel Kirby on 7 September 2026.