Andreasson BA-4B

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

BA4B banking.jpg
Role Sports biplane
Manufacturer Homebuilt
Designer Björn Andreasson
First flight 1966
Developed from Andreasson BA-4
Developed into Andreasson BA-11

Design and developmentEdit

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 historyEdit

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]


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)Edit

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


  • 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)

See alsoEdit

Related development



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


  • 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.