Kohl Mythos

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German Aircraft Sky-Maxx
Role Ultralight aircraft
National origin Germany
Manufacturer S.A.I. Aeronautica
German Aircraft GmbH
Stefan Kohl
Designer Stefan Kohl
Status In production (2012)

The Kohl Mythos (English: myth or story) is a German observation ultralight aircraft, designed by Stefan Kohl, and produced by S.A.I. Aeronautica, later by German Aircraft GmbH and most recently by the designer himself.[1]

The Mythos started out as the S.A.I. Aeronautica G97 Spotter. Later, production was moved to German Aircraft GmbH and the design sold as the German Aircraft Sky-Maxx. After unsuccessful marketing the designer decided to have the aircraft produced himself under contract in Italy.[1][2]

The Mythos is intended for the observation role and in particular agricultural research, forestry, law enforcement, flight training, sightseeing, aerial photography and cattle mustering.[1][2]

Design and development[edit]

The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight rules. It features a cantilever high-wing, a two-seats-in-side-by-side configuration enclosed cockpit, fixed tricycle landing gear and a single engine in pusher configuration. The aircraft has extensive glazing to allow maximum visibility.[1]

The aircraft is made from aluminum sheet. Its 8.75 m (28.7 ft) span wing has an area of 10.3 m2 (111 sq ft) and mounts effective flaps to allow low-speed flight and loitering. Standard engines available are the 100 hp (75 kW) Rotax 912ULS and the 95 hp (71 kW) ULPower UL260i four-stroke powerplants.[1]

Specifications (Mythos)[edit]

Data from Bayerl and Oxford Aircraft[1][3]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 6.24 m (20 ft 6 in)
  • Wingspan: 8.75 m (28 ft 8 in)
  • Height: 2.3 m (7 ft 7 in)
  • Wing area: 10.3 m2 (111 sq ft)
  • Empty weight: 290 kg (639 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 70 litres (15 imp gal; 18 US gal)
  • Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke aircraft engine, 75 kW (101 hp)


  • Maximum speed: 192 km/h (119 mph; 104 kn)
  • Cruising speed: 170 km/h (106 mph; 92 kn)
  • Stall speed: 63 km/h (39 mph; 34 kn)
  • Never exceed speed: 240 km/h (149 mph; 130 kn)
  • Service ceiling: 4,572 m (15,000 ft)
  • g limits: +4.8/-2.5
  • Rate of climb: 7 m/s (1,400 ft/min)
  • Wing loading: 43.7 kg/m2 (9.0 lb/sq ft)


  1. ^ a b c d e f Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 77. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. ^ a b Oxford Aircraft (n.d.). "Oxford Aircraft". Archived from the original on 13 January 2007. Retrieved 6 September 2012. 
  3. ^ Oxford Aircraft (n.d.). "Mythos Specifications". Archived from the original on 13 January 2007. Retrieved 6 September 2012. 

External links[edit]