Thor T/A

Last updated
T/A
Role Ultralight aircraft
National origin Canada
Manufacturer Thor-Air Inc
Designer Thorsten B. Strenger (or possibly Gunter Webster)
Introduction 1985
Status Production completed

The Thor T/A is a Canadian ultralight aircraft that was designed by Thorsten B. Strenger (or possibly Gunter Webster) and produced by Thor-Air of Weston, Ontario. The aircraft was supplied as a kit for amateur construction. [1] [2]

Canada Country in North America

Canada is a country in the northern part of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering 9.98 million square kilometres, making it the world's second-largest country by total area. Canada's southern border with the United States is the world's longest bi-national land border. Its capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. As a whole, Canada is sparsely populated, the majority of its land area being dominated by forest and tundra. Consequently, its population is highly urbanized, with over 80 percent of its inhabitants concentrated in large and medium-sized cities, many near the southern border. Canada's climate varies widely across its vast area, ranging from arctic weather in the north, to hot summers in the southern regions, with four distinct seasons.

Weston, Toronto Neighbourhood in Toronto, Ontario, Canada

Weston is a neighbourhood and former village in Toronto, Ontario, Canada. The neighbourhood is situated in the northwest of the city, south of Highway 401, east of the Humber River, north of Eglinton Avenue, and west of Jane Street. Weston Road just north of Lawrence Avenue is the commercial core of Weston, with many small businesses and services. Weston was incorporated as a village in the 19th century and was absorbed into the Borough of York in the late 1960s. York itself was amalgamated into Toronto in 1998.

Ontario Province of Canada

Ontario is one of the 13 provinces and territories of Canada and is located in east-central Canada. It is Canada's most populous province accounting for 38.3 percent of the country's population, and is the second-largest province in total area. Ontario is fourth-largest in total area when the territories of the Northwest Territories and Nunavut are included. It is home to the nation's capital city, Ottawa, and the nation's most populous city, Toronto, which is also Ontario's provincial capital.

Contents

Design and development

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg). The aircraft has a standard empty weight of 238 lb (108 kg). It features a strut-braced high-wing, a single-seat, open cockpit, conventional landing gear and a single engine in tractor configuration. [1] [2]

Conventional landing gear aircraft undercarriage arrangement with main gear forward plus tail support

Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail. The term taildragger is also used, although some claim it should apply only to those aircraft with a tailskid rather than a wheel.

Tractor configuration arrangement of propellers on an aircraft to face forward

An aircraft constructed with a tractor configuration has the engine mounted with the airscrew in front of it so that the aircraft is "pulled" through the air, as opposed to the pusher configuration, in which the airscrew is behind and propels the aircraft forward. Through common usage, the word "propeller" has come to mean any airscrew, whether it actually propels or pulls the plane.

The aircraft is made from bolted-together aluminum tubing, with its flying surfaces covered in Dacron sailcloth. Its 80% double-surface 32.3 ft (9.8 m) span wing is braced with "V" lift struts. The pilot is accommodated on an open seat, protected by a simple windshield. The landing gear has suspension on the main wheels and features a steerable tailwheel. The three axis control system is unusual. Pitch and roll are conventionally controlled with elevator and rudder, while roll is controlled with tip rudders. [1] [2]

Landing gear aircraft part which supports the aircraft while not in the air

Landing gear is the undercarriage of an aircraft or spacecraft and may be used for either takeoff or landing. For aircraft it is generally both. It was also formerly called alighting gear by some manufacturers, such as the Glenn L. Martin Company.

Variants

T/A
Initial design, powered by a 28 hp (21 kW) Rotax 277 single cylinder, two-stroke powerplant. [1]
1-A
Up-engined model, powered by a 40 hp (30 kW) Rotax 447 twin cylinder, two-stroke powerplant. [1]
Two-seater
Similar to the single-seat models but with a second seat for dual instruction. [1]

Specifications (T/A)

Data from Cliche and the Virtual Ultralight Museum [1] [2]

General characteristics

The Rotax 277 is a 26 hp (19 kW), single-cylinder, two-stroke aircraft engine, that was built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.

Performance

  • Maximum speed: 63 mph (101 km/h; 55 kn)
  • Cruise speed: 55 mph (89 km/h; 48 kn)
  • Stall speed: 22 mph (35 km/h; 19 kn)
  • Service ceiling: 10,000 ft (3,000 m)
  • g limits: +3/-2
  • Maximum glide ratio: 9:1
  • Rate of climb: 700 ft/min (3.6 m/s)

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References

  1. 1 2 3 4 5 6 7 Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page E-41. Cybair Limited Publishing, 2001. ISBN   0-9680628-1-4
  2. 1 2 3 4 Virtual Ultralight Museum (n.d.). "Thor T/A" . Retrieved 2 January 2012.