The Balliol was retired as a military trainer from 1965 to 1957 in favour of , the de Havilland Vampire trainer, some of the Boulton Paul Balliols were used by the fledgling Royal Ceylon Air Force with RAF guidance. It is of note that the second prototype Balliol was powered by the Armstrong Siddeley Mamba turboprop engine and became the first ever single turboprop aircraft to fly on the 17th of May 1948. Boulton Paul Balliol T.2 Specifications: - Crew: Pilot an trainee pilot
- Length: 35 ft 1½ in (10.71 m)
- Wingspan: 39 ft 4 in (11.99 m)
- Height: 12 ft 6 in (3.81 m)
- Wing area: 250 ft² (24.2 m²)
- Empty weight: 6,730 lb (3,059 kg)
- Loaded weight: 8,410 lb (3823 kg)
- Engine: Single 1,245 hp (929 kW) Rolls-Royce Merlin 35 V-12
- Maximum speed: 250 kn (288 mph, 464 km/h) at 9,000 ft
- Maximum range: 574 NM (660 mi, 1063 km)
- Service ceiling: 32,500 ft (9,909 m)
Boulton Paul Balliol T.2 Armament: - Single 0.303 in Browning machine gun
- Four 60-lb rockets
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