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G-BDAY is a Thunder AX5-42 S1 hot air balloon, built in 1978 and registered in the UK. No public sightings of G-BDAY have been logged yet. There is one photograph of it in the archive.
Also written G BDAY or GBDAY.
UK civil aircraft register, 20 Sep 2026
First photographed here by G Bann on 7 September 2026.
