• Source: BK Fliers BK-1

The bk" target="_blank">BK Fliers bk" target="_blank">BK-1 is a single seat homebuilt aircraft.




Design and development


The bk" target="_blank">Bk-1 was designed and built by Bruce King in 2004 after building a modified Hummel Bird. It was patterned after the Hummel Bird, with a full VW engine and larger cockpit and surfaces.
The bk" target="_blank">BK-1 is an all-aluminum, monocoque/semi-monocoque, single-engine, low-wing airplane, with either conventional or tricycle landing gear. The bk" target="_blank">BK-1.3 is a modified version, 30% larger than the original, with full-span flaperons.




Variants


bk" target="_blank">BK-1: Original version, originally with conventional landing gear
bk" target="_blank">BK-1.3: 30%-larger version, originally with tricycle gear




Specifications (bk" target="_blank">BK-1)


Data from ManufacturerGeneral characteristics
Crew: 1
Length: 15 ft 4 in (4.67 m)
Wingspan: 19 ft 4 in (5.89 m)
Height: 6 ft 5 in (1.96 m)
Empty weight: 450 lb (204 kg)
Gross weight: 850 lb (386 kg)
Fuel capacity: 15 U.S. gallons (57 L; 12 imp gal)
Powerplant: 1 × VW Great Plains Aircraft Supply Company Volkswagen air-cooled engine, 60 hp (45 kW)
Performance

Maximum speed: 126 kn (145 mph, 233 km/h)
Cruise speed: 110 kn (130 mph, 210 km/h)
Stall speed: 38 kn (44 mph, 71 km/h) Flaperons deployed
Rate of climb: 750 ft/min (3.8 m/s)




See also



Aircraft of comparable role, configuration, and era

Parker Jeanie's Teenie
Sonex Aircraft Onex
Hummel Bird
Thatcher CX4




References






External links



"BK1 Around the Pattern," (builder's demo flight video of conventional-gear bk" target="_blank">BK-1), January 24, 2007, bkfliers.com
"Building a Plane from Scratch," (news video: interview with bk" target="_blank">BK-1 designer Bruce King and video of his tricycle-gear plane in demo flight), July 16, 2013, KSAT news
bk" target="_blank">BK Flier builder group

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