Flying Machines FM301 Stream

Last updated
FM301 Stream
Role Ultralight trike
National origin Czech Republic
Manufacturer Flying Machines s.r.o.
Status In production (2013)
Unit cost
€23,000 (2011)

The Flying Machines FM301 Stream, is a Czech ultralight trike, designed by and produced by Flying Machines s.r.o. of Rasošky. The aircraft is supplied as a complete ready-to-fly-aircraft. [1]

Czech Republic Republic in Central Europe

The Czech Republic, also known by its short-form name, Czechia, is a landlocked country in Central Europe bordered by Germany to the west, Austria to the south, Slovakia to the east and Poland to the northeast. The Czech Republic covers an area of 78,866 square kilometres (30,450 sq mi) with a mostly temperate continental climate and oceanic climate. It is a unitary parliamentary republic, with 10.6 million inhabitants; its capital and largest city is Prague, with 1.3 million residents. Other major cities are Brno, Ostrava, Olomouc and Pilsen. The Czech Republic is a member of the European Union (EU), NATO, the OECD, the United Nations, the OSCE, and the Council of Europe.

Ultralight trike powered hang glider with a Rogallo wing and a three-wheeled undercarriage

An ultralight trike is a type of powered hang glider where flight control is by weight-shift. These aircraft have a fabric flex-wing from which is suspended a tricycle fuselage pod driven by a pusher propeller. The pod accommodates either a solo pilot, or a pilot and a single passenger. Trikes grant affordable, accessible and exciting flying, and have been popular since the 1980s.

Flying machines s.r.o. is a Czech manufacturer of light aircraft based in Rasošky. The company was established in 2004 and specializes in kit aircraft for amateur construction and ultralight trikes.

Contents

Design and development

The FM301 was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of 450 kg (992 lb). It features a cable-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit with a cockpit fairing, tricycle landing gear and a single engine in pusher configuration. [1]

<i>Fédération Aéronautique Internationale</i> voluntary association

The Fédération aéronautique internationale, is the world governing body for air sports, and also stewards definitions regarding human spaceflight. It was founded on 14 October 1905, and is headquartered in Lausanne, Switzerland. It maintains world records for aeronautical activities including ballooning, aeromodeling, unmanned aerial vehicles (drones), as well as flights into space.

Tandem arrangement in which people, machines, or animals are in line behind one another facing forward

Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction.

Tricycle landing gear aircraft undercarriage arranged with main gear under the wing or fuselage and a third set under the nose

Tricycle gear is a type of aircraft undercarriage, or landing gear, arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle gear aircraft are the easiest to take-off, land and taxi, and consequently the configuration is the most widely used on aircraft.

The aircraft is made with a monocoque fibreglass carriage, with its double surface wing covered in Dacron sailcloth. Its 9.5 m (31.2 ft) span Quasar wing is supported by a single tube-type kingpost and uses an "A" frame weight-shift control bar. The powerplant is a twin cylinder, air-cooled, four-stroke, dual-ignition 60 hp (45 kW) HKS 700E engine, with the two-stroke 64 hp (48 kW) Rotax 582 and the four cylinder, air and liquid-cooled, four-stroke, dual-ignition 80 hp (60 kW) Rotax 912UL or 100 hp (75 kW) Rotax 912ULS engines optional. With the HKS powerplant the aircraft has an empty weight of 175 kg (386 lb) and a gross weight of 450 kg (992 lb), giving a useful load of 275 kg (606 lb). With full fuel of 42 litres (9.2 imp gal; 11 US gal) the payload is 245 kg (540 lb). [1]

Monocoque Structural design that supports loads through an objects external skin

Monocoque, also structural skin, is a structural system where loads are supported through an object's external skin, similar to an egg shell. The word monocoque is a French term for "single shell" or "single hull". First used in boats, a true monocoque carries both tensile and compressive forces within the skin and can be recognised by the absence of a load-carrying internal frame.

HKS 700E

The HKS 700E is a twin-cylinder, horizontally opposed, four stroke, carburetted aircraft engine, designed for use on ultralight aircraft, powered parachutes and ultralight trikes. The engine is manufactured by HKS, a Japanese company noted for its automotive racing engines.

Rotax 582 two-stroke piston aircraft engine

The Rotax 582 is a 48 kW (64 hp) two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating in day visual flight rules.

The unusual fibreglass structural construction allows internal fuel tanks and also permits a large unobstructed baggage area. The FM301 also has a unique wing mast system that allows the wing to be assembled and mounted on the carriage single-handedly. [1]

Specifications (FM301)

Data from Bayerl and Flying Machines [1] [2]

General characteristics

Aircraft engine Engine designed for use in powered aircraft

An aircraft engine is a component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines, except for small multicopter UAVs which are almost always electric aircraft.

Performance

  • Maximum speed: 135 km/h (84 mph; 73 kn)
  • Cruise speed: 100 km/h (62 mph; 54 kn)
  • Stall speed: 52 km/h (32 mph; 28 kn)
  • Never exceed speed: 140 km/h (87 mph; 76 kn)
  • Maximum glide ratio: 9:1
  • Rate of climb: 6 m/s (1,200 ft/min)
  • Wing loading: 29.2 kg/m2 (6.0 lb/sq ft)

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References

  1. 1 2 3 4 5 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 212. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. ↑ "FM301". FlyingMachines.cz. Retrieved 2013-07-12.
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