The ATEC 321 Faeta is a Czech ultralight and light-sport aircraft, designed and produced by ATEC v.o.s. of Libice nad Cidlinou. It was developed from the earlier ATEC 122 Zephyr 2000. The aircraft is supplied as a complete ready-to-fly-aircraft.[2][3][4]

321 Faeta
Role Ultralight aircraft and Light-sport aircraft
National origin Czech Republic
Manufacturer ATEC v.o.s.
Introduction 2003[1]
Status In production
Developed from ATEC 122 Zephyr 2000

Design and development


The Faeta was designed to comply with the Fédération Aéronautique Internationale microlight rules and US light-sport aircraft rules. It features a cantilever low-wing, a two-seats-in-side-by-side configuration enclosed cockpit under a bubble canopy, fixed tricycle landing gear, a T-tail and a single engine in tractor configuration. It is an approved SLSA in the USA.[2][3][4][5]

The aircraft fuselage is made with a carbon fibre shell and composite sandwich bulkheads. The 9.6 m (31.5 ft) span wing is made from carbon fibre sandwiches built upon a laminated wooden spar. The wing varies from the Zephyr in that it has a different tapered planform and uses a new airfoil. The design attempts to provide a lower empty weight and stall speed than the 122 Zephyr. The standard engine available is the 100 hp (75 kW) Rotax 912ULS four-stroke powerplant.[2][3][4]

The Nordic Omsider amphibian prototype uses the wings and part of the tail from the Faeta.[4]

Specifications (321 Faeta)


Data from Bayerl and Tacke[2][4]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wingspan: 9.6 m (31 ft 6 in)
  • Wing area: 10.1 m2 (109 sq ft)
  • Empty weight: 278 kg (613 lb)
  • Gross weight: 472.5 kg (1,042 lb)
  • Fuel capacity: 70 litres (15 imp gal; 18 US gal)
  • Powerplant: 1 × Rotax 912ULS four cylinder, liquid and air-cooled, four stroke, 75 kW (101 hp)
  • Propellers: 3-bladed composite


  • Maximum speed: 270 km/h (170 mph, 150 kn)
  • Cruise speed: 227 km/h (141 mph, 123 kn)
  • Stall speed: 52 km/h (32 mph, 28 kn)
  • Rate of climb: 7 m/s (1,400 ft/min)
  • Wing loading: 46.78 kg/m2 (9.58 lb/sq ft)


  1. ^ ATEC v.o.s. (2015). "Atec, v.o.s. Czech manufacturer of Hi-Tech ultralights". Retrieved 16 January 2015.
  2. ^ a b c d Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 28. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  3. ^ a b c Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 124. Pagefast Ltd, Lancaster UK, 2003. ISSN 1368-485X
  4. ^ a b c d e Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 29 and 70. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  5. ^ Experimental Aircraft Association (2012). "EAA's Listing of Special Light-Sport Aircraft". Archived from the original on 2014-02-28. Retrieved 17 April 2012.