You have it Bri.
It is the Bristol Bloodhound.
The Bristol Type 84 Bloodhound turned down by the Ministry in favour of the DeHavilland Dormouse nevertheless went on to prove the worthiness of the Jupiter engine.
The Bloodhound prototype returned to Filton for overhaul, it received civil registration and to prove the strength of the airframe but more particularly the reliability of Fedden's engine two Imperial Airways pilots Col F F Minchin and Capt F L Barnard flew the aircraft from Croydon to Filton with the engine sealed. From January 4th until the 8th March 1926 they logged 25,074 miles in 225 hours and 45 minutes. The engine ran faultlessly throughout and Imperial Airways to prove its hot weather ability flew G-EBGG from Croydon to Cairo and back, taking 56 hours for the 5,400 mile trip. They had a few problems with desert landing strips but again none with the airframe or the engine. The Jupiter engine went on to become the most used engine of any manufacturer. The aircraft was later used to test the geared Jupiter VIII using a four balde propellor until finally scrapped in 1931.
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