AirMax SeaMax

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SeaMax M-22
Air Max Sea Max M22 N139LS Lakeland FL 04.09R.jpg
SeaMax M-22
Role Light amphibious light-sport aircraft and FAI microlight
National origin Brazil
Manufacturer Airmax Construções Aeronáuticas
Seamax Brasil
Designer Miguel Rosario
First flight 2000
Status In production

The AirMax SeaMax is a Brazilian single-engine, amphibious light sport aircraft (LSA) and Fédération Aéronautique Internationale microlight originally manufactured by AirMax Construções Aeronáuticas of Jacarepaguá.[1]

By 2015 the manufacturer was Seamax Brasil of Sao Paulo.[2]

SeaMax in Linnasalmi, Hämeenlinna

Design and development[edit]

The SeaMax was designed in 1999. A prototype was flown in 2000 and the first production aircraft left the factory in 2001. The SeaMax is constructed using composite materials and metal components. It has a two-seat, side-by-side configuration cabin with a bubble canopy which is hydraulically raised for access. The high-wing is strut-braced and the tail is a cruciform tail. The aircraft's tricycle landing gear is retractable for landing on water. It is powered by a 100 hp (75 kW) Rotax 912ULS pusher configuration engine mounted above the wing to avoid water ingestion.[1][2]

Versions can be constructed to meet the requirements of both the European microlight and US LSA categories.[2]


Data from Bayerl[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 8.75 m (28 ft 8 in)
  • Wing area: 12.24 m2 (131.8 sq ft)
  • Empty weight: 300 kg (661 lb)
  • Gross weight: 520 kg (1,146 lb)
  • Fuel capacity: 96 litres (21 imp gal; 25 US gal)
  • Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke, 75 kW (101 hp)


  • Maximum speed: 210 km/h (130 mph, 110 kn)
  • Cruise speed: 195 km/h (121 mph, 105 kn)
  • Stall speed: 58 km/h (36 mph, 31 kn)
  • Rate of climb: 5 m/s (980 ft/min)

See also[edit]

Aircraft of comparable role, configuration, and era

Related lists


  1. ^ a b c Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 23. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  2. ^ a b c Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 79. Flying Pages Europe SARL, 2015. ISSN 1368-485X