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 1988At 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]
