Andreasson BA-4B

BA-4B
BA-4B
General information
Type	Sports biplane
Manufacturer	Homebuilt
Designer	Björn Andreasson
History
First flight	1966
Developed from	Andreasson BA-4
Developed into	Andreasson BA-11

The Andreasson BA-4B is a single-seat aerobatic biplane which was marketed for homebuilding and also produced complete.

Design and development

Swedish-built first prototype BA-4B at Shoreham Airport, England, in February 1988

At Old Warden, June 2014

The BA-B4B was based on Andreasson's 1944 wooden BA-4 revised to take advantage of more modern construction techniques, such as the use of sheet metal. The first example was built by apprentices at the Malmö Aircraft Industry (M.F.I.).^[1] It is a single-bay, staggered-wing biplane with fixed tailwheel undercarriage. P.J.C Phillips acquired worldwide production rights for complete, rather than kit built, version and marketed them in the UK through Crosby Aviation.^[2] In the US the B-4B was marketed by Larry Karp as the Canary Hawk.

Operational history

In 2014 there were six BA-4Bs on the UK civil register, one Crosby built and the others homebuilt. Three of these have the Continental O-200-A engine but the other three use Lycoming flat fours with outputs between 81 kW (108 hp) and 119 kW (160 hp).^[3] In 2009 four BA-4Bs remained on the Swedish register.^[4]

Variants

Ba-4 Midget

Andeasson B-4 (Midget): Wood and fabric biplane first flown in 1944, powered by a 21 kW (28 hp) Scott Squirrel.^[1]
Andreasson B-4B: All-metal version. First prototype built by M.F.I apprentices in c.1964. Plans marketed.^[5]
Crosby (Andreasson) B-4B: Sold complete, powered by a 75 kW (100 hp) Rolls-Royce Continental O-200-A flat four.^[2]
Crosby (Andreasson) Super B-4B: As B-4B but with a 89 kW (120 hp) Rolls-Royce Continental O-240-A flat four.^[2]

Specifications (Crosby (Andreasson) BA-4B)

Data from Jane's All the World's Aircraft 1974/5^[2]

General characteristics

Crew: One
Length: 4.67 m (15 ft 4 in)
Wingspan: 5.64 m (18 ft 6 in)
Wing area: 8.36 m² (90.0 sq ft)
Empty weight: 295 kg (650 lb)
Max takeoff weight: 460 kg (1,014 lb)
Fuel capacity: 56.3 L (12.4 imp gal; 14.9 US gal) internal. Provision for external tank holding extra 50 L (11.0 imp gal; 13.2 US gal)
Powerplant: 1 × Rolls-Royce Continental O-200-A flat four, 75 kW (100 hp)
Propellers: 2

Performance

Maximum speed: 241 km/h (150 mph, 130 kn) level flight, sea level
Cruise speed: 217 km/h (135 mph, 117 kn) 75% power at 2,134 m (7,000 ft)
Stall speed: 73 km/h (45 mph, 39 kn) power on
Range: 573 km (356 mi, 309 nmi) standard fuel, 75% power
Rate of climb: 6.1 m/s (1,200 ft/min) maximum at sea level
Wing loading: 54.7 kg/m² (11.2 lb/sq ft)

References

Notes

^ ^a ^b Airlife's World Aircraft p.44
^ ^a ^b ^c ^d Jane's All the World's Aircraft 1974/5 p.205
^ "Home". United Kingdom: Civil Aviation Authority. Retrieved 2022-05-02.
^ Partington
^ Jane's All the World's Aircraft 1974/5 p.181

Bibliography

Taylor, John W R (1974). Jane's All the World's Aircraft 1974–75. London: Jane's Yearbooks. pp. 181, 205. ISBN 0-354-00502-2.
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 60.
Partington, Dave (2010). European registers handbook 2010. Air Britain (Historians) Ltd. ISBN 978-0-85130-425-0.

[Simpson-1] Airlife's World Aircraft p.44

[JAWA74-2] Jane's All the World's Aircraft 1974/5 p.205

[3] "Home". United Kingdom: Civil Aviation Authority. Retrieved 2022-05-02.

[4] Partington

[JAWA74_2-5] Jane's All the World's Aircraft 1974/5 p.181

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