RMT Bateleur

The RMT Bateleur (named for the bird species) is a German ultralight and light-sport aircraft, designed by Andre von Schoenebeck and produced by RMT Aviation of Bad Bocklet. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.[1][2]

Bateleur
Role Ultralight aircraft and Light-sport aircraft
National origin Germany
Manufacturer RMT Aviation
Designer Andre von Schoenebeck
Status In production (2012)
Unit cost
US$193,000 (assembled, 2015)

Design and development

The aircraft was designed by von Schoenebeck as his first full-sized aircraft after a career of designing competition model gliders. The Bateleur was intended to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. The company also plans to type certify it to FAR 23 standards.[1][3]

The Bateleur features a delta wing layout with a canard. The wing is a cantilever low-wing design. The aircraft also features two-seats-in-tandem under separate bubble canopies, fixed or optionally retractable tricycle landing gear and a single engine in pusher configuration. The light-sport version will have fixed landing gear as that category's rules require and a gross weight of 600 kg (1,323 lb).[1][4]

The aircraft is made from composites. Its 6.25 m (20.5 ft) span wing has an area of 14 m2 (150 sq ft) and flaps mounted on the main and canard wings. Standard engines available are the 100 hp (75 kW) Rotax 912ULS and the turbocharged, 115 hp (86 kW) Rotax 914 four-stroke powerplants. Landing gear is fixed for the US light-sport aircraft market or retractable for the homebuilt version.[1][2]

Production was initially established in South Africa, moved to Germany, and finally to the United States in 2012.[1][2]

As of March 2017, the design does not appear on the Federal Aviation Administration's list of approved special light-sport aircraft.[5]

Specifications (Bateleur)

Data from Bayerl[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 6.25 m (20 ft 6 in)
  • Wing area: 14 m2 (150 sq ft)
  • Empty weight: 250 kg (551 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 76 litres (17 imp gal; 20 US gal)
  • Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke aircraft engine, 75 kW (101 hp)

Performance

  • Maximum speed: 320 km/h (200 mph, 170 kn)
  • Cruise speed: 300 km/h (190 mph, 160 kn)
  • Stall speed: 65 km/h (40 mph, 35 kn)
  • Endurance: 7 hours at 275 km/h (171 mph)
  • Rate of climb: 7 m/s (1,400 ft/min)
  • Wing loading: 42.9 kg/m2 (8.8 lb/sq ft)
gollark: Where else would they go?
gollark: What? Of course they are in our universe.
gollark: Those aren't heaven and hell, silly.
gollark: > The temperature of Heaven can be rather accurately computed from available data. Our authority is Isaiah 30:26, “Moreover, the light of the Moon shall be as the light of the Sun and the light of the Sun shall be sevenfold, as the light of seven days.” Thus Heaven receives from the Moon as much radiation as we do from the Sun, and in addition seven times seven (49) times as much as the Earth does from the Sun, or fifty times in all. The light we receive from the Moon is one ten-thousandth of the light we receive from the Sun, so we can ignore that. With these data we can compute the temperature of Heaven. The radiation falling on Heaven will heat it to the point where the heat lost by radiation is just equal to the heat received by radiation, i.e., Heaven loses fifty times as much heat as the Earth by radiation. Using the Stefan-Boltzmann law for radiation, (H/E)^4 = 50, where E is the absolute temperature of the earth (-300K), gives H as 798K (525C). The exact temperature of Hell cannot be computed, but it must be less than 444.6C, the temperature at which brimstone or sulphur changes from a liquid to a gas. Revelations 21:8 says “But the fearful, and unbelieving … shall have their part in the lake which burneth with fire and brimstone.” A lake of molten brimstone means that its temperature must be at or below the boiling point, or 444.6C (Above this point it would be a vapor, not a lake.) We have, then, that Heaven, at 525C is hotter than Hell at 445C. – “Applied Optics”, vol. 11, A14, 1972
gollark: This is because it canonically receives 50 times the light Earth does.

References
  1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 73. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 77. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  3. "History". RMT Aviation. 2006. Retrieved 28 August 2012.
  4. "Versions Offered". RMT Aviation. 2006. Retrieved 28 August 2012.
  5. Federal Aviation Administration (26 September 2016). "SLSA Make/Model Directory". Retrieved 18 March 2017.
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