Boulton Paul Balliol

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Boulton Paul Balliol
A Boulton Paul Sea Balliol
Type: Trainer aircraft
Design country:

United KingdomUnited Kingdom United Kingdom

Manufacturer:

Boulton Paul Aircraft

First flight:

May 30, 1947

Commissioning:

1950

Number of pieces:

227

The Boulton Paul Balliol and the Sea Balliol were single-engine military trainer aircraft made by the British manufacturer Boulton Paul Aircraft in the late 1940s. They were commissioned by the Royal Air Force and the Royal Navy to replace the North American Harvard .

history

Boulton Paul Balliol T.2
Three-sided view of Boulton Paul Balliol

The Balliol was created in competition with the Avro Athena and met the requirements of the Air Ministry for a three-seater training aircraft with a turboprop engine . The all-metal aircraft was designed as a low-wing aircraft and had a retractable tail wheel landing gear . Trainee pilots and instructors sat next to each other with an additional seat behind them.

The first prototype made its maiden flight on May 30, 1947 . He initially had a Bristol Mercury 30 radial engine . The second prototype from 1948 received an Armstrong Siddeley Mamba engine from the start.

Meanwhile, the Ministry of Aviation had changed its requirements and required a two-seater model with a Rolls-Royce Merlin piston engine. The correspondingly adapted version was named Balliol T.2 and flew for the first time on July 10, 1948 . The Sea Balliol T.21 was developed for use on aircraft carriers and had foldable wings and a catch hook .

The Balliol entered service with the Royal Air Force in 1950. In 1951 the ministry again changed its plans and requested a jet-propelled trainer aircraft . The procurement of further Balliols was therefore not done. In 1956 they were replaced by the de Havilland DH.100 Vampire T.Mk.11.

Versions

  • P.108 Balliol T.Mk 1  : three prototypes with Armstrong Siddeley Mamba motors
  • Balliol T.Mk 2  : Royal Air Force two-seat trainer aircraft, 196 aircraft
  • Sea Balliol T.Mk 21  : Royal Navy two-seat trainer aircraft, 30 aircraft

Users

Technical data (T.2)

Parameter Data
crew 2
length 10.71 m
span 11.99 m
height 3.81 m
Wing area 24.2 m²
Empty mass 3059 kg
Takeoff mass 3823 kg
Top speed 464 km / h
Service ceiling 9910 m
Range 1060 km
Engines a Rolls-Royce Merlin 35 piston engine with 929 kW
Armament a Browning M1919 machine gun , four RP-3 missiles

See also

Web links