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The Hollsmidt 222 or HT-1 was a Danish light utility amateur aircraft.

Hollsmidt 222 (HT-1)
Hollsmidt 222 at Dansk Veteranflysamling
Role	Utility aircraft Type of aircraft
Manufacturer	Amateur
Designer	Harald Thyregod
First flight	24 April 1964
Retired	1978
Status	Prototype
Primary user	Denmark
Number built	1

Design and development

The plane was designed by engineer Harald Thyregod in 1958 and built by a farmer Arne Hollænder and Aksel Smidt at Hollænder's farm in Aarre. Therefore, it is known as HT-1 for Harald Thyregod or Hollsmidt for two builders. The idea was to create a light, cheap aircraft, fit to homebuilding, with two engines giving more safety. The engines themselves were converted Volkswagen car engines.

Operational history

The plane was first flown by Harald Thyregod on 24 April 1964. It was used by Arne Hollænder and received a registration OY-FAI. At the end of airworthiness (estimated at 300 hours), in 1978 it was donated to Denmark's "flying" Museum (Dansk Veteranflysamling).

Specifications

General characteristics

• Crew: 1
• Capacity: 1 passenger
• Length: 5.83 m (19 ft 2 in)
• Wingspan: 8.87 m (29 ft 1 in)
• Empty weight: 332 kg (732 lb)
• Gross weight: 500 kg (1,102 lb)
• Powerplant: 2 × Volkswagen 1200 4-cyl air-cooled boxer engine, 48 kW (65 hp) each

Performance

• Maximum speed: 210 km/h (130 mph, 110 kn)
• Cruise speed: 157 km/h (98 mph, 85 kn)

References

• HT-1 at Dansk Veteranflysamling page and in Danish

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