Skandinaviska Aero BHT-1 Beauty

The Skandinaviska Aero BHT-1 Beauty is a 1940s Swedish single-seat light monoplane designed by E. Bratt, K.E. Hilfing and B.Törnblom and built by Skandinaviska Aero of Stockholm.

BHT-1 Beauty
Role Single-seat light monoplane
National origin Sweden
Manufacturer Skandinaviska Aero
Designer E. Bratt, K.E. Hilfing and B.Törnblom
First flight 4 December 1944
Number built 1

Design

The BHT-1 is a wooden low-wing cantilever monoplane with a retractable tailwheel landing gear. Powered by a 60 hp (45 kW) Walter Mikron 4 piston engine it has an enclosed single-seat cockpit. The wings include slotted flaps.[1]

Variants

The BHT-2 was a proposed two-seat development. A prototype constant speed propeller was developed for the aircraft using differential between engine oil, and ram air pressure to control pitch.[1]

Specifications

Data from Jane's Fighting Aircraft of World War II,[2] Jane's all the World's Aircraft 1947[3]

General characteristics

  • Crew: 1
  • Length: 5.8 m (19 ft 0 in)
  • Wingspan: 6.82 m (22 ft 5 in)
  • Height: 1.9 m (6 ft 3 in)
  • Wing area: 7 m2 (75 sq ft)
  • Empty weight: 240 kg (529 lb)
  • Gross weight: 365 kg (805 lb) aerobatic
  • Max takeoff weight: 420 kg (926 lb) long-range
  • Fuel capacity: 88 l (23 US gal; 19 imp gal) in three tanks, plus 127 l (34 US gal; 28 imp gal) in "special reserve" fuel tank
  • Powerplant: 1 × Walter Mikron 4 4-cyl. inverted air-cooled in-line piston engine, 45 kW (60 hp)
  • Propellers: 2-bladed wooden fixed-pitch airscrew with provision for controllable-pitch airscrew

Performance

  • Maximum speed: 250 km/h (160 mph, 130 kn)
  • Cruise speed: 210 km/h (130 mph, 110 kn)
  • Landing speed with flaps:75 km/h (47 mph; 40 kn)
  • Never exceed speed: 580 km/h (360 mph, 310 kn) with controllable-pitch airscrew
  • Range: 1,700 km (1,100 mi, 920 nmi)
  • Ferry range: 3,000 km (1,900 mi, 1,600 nmi) with special reserve fuel tank
  • Service ceiling: 7,500 m (24,600 ft)
  • Rate of climb: 5.2 m/s (1,020 ft/min)
  • Wing loading: 52 kg/m2 (11 lb/sq ft) aerobatic
  • Power/mass: 8.18 kg/kW (13.42 lb/hp)

References
  1. "Capt. Jan Christie's BHT-1". Experimenter. June 1955.
  2. Bridgman, Leonard (1988). Jane's Fighting Aircraft of World War II. New York: Crescent Books. p. 288. ISBN 0-517-67964-7.
  3. Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 166c.
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