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G-BTRO is a Thunder AX8-90 hot air balloon, built in 1991 and registered in the UK. No public sightings of G-BTRO have been logged yet. There is one photograph of it in the archive.
Also written G BTRO or GBTRO.
UK civil aircraft register, 6 Sep 2026
First photographed here by G Duke on 7 September 2026.