Niki Kallithea

The Niki Kallithea (the best view) is a Bulgarian autogyro designed and produced by Niki Rotor Aviation of Pravets, introduced in 2011. The aircraft is supplied complete and ready-to-fly.[1][2]

Kallithea
Role Autogyro
National origin Bulgaria
Manufacturer Niki Rotor Aviation
Introduction 2011
Status In production (2017)
Produced 2011-present
Developed from Niki Lightning

Design and development

The Kallithea is a development of the 2009 Niki Lightning, differing mainly in its use of a conventional two-tube tail boom that passes under the pusher propeller instead of mounting the tail boom through the propeller hub.

The Kallithea features a single main rotor, a two-seats-in tandem enclosed cockpit with fold-up doors, tricycle landing gear and a four-cylinder, liquid and air-cooled, four stroke 100 hp (75 kW) Rotax 912 or six-cylinder, liquid cooled side-valve four-stroke flat six 4-litre gasoline 120 hp (89 kW) D-Motor LF39 aircraft engine in pusher configuration. The doors can also be removed for flight.[1]

The aircraft fuselage is a monocoque structure made from composites and fibreglass. Its two-bladed Vortech or Sport Copter rotor has a diameter of 8.5 m (27.9 ft) and a chord of 21 cm (8.3 in). The aircraft has a typical empty weight of 250 kg (551 lb) and a gross weight of 450 kg (992 lb), giving a useful load of 200 kg (441 lb). With full fuel of 80 litres (18 imp gal; 21 US gal) the payload for the pilot, passenger and baggage is 143 kg (315 lb).[1]

Specifications (Kallithea)

Data from Tacke[1]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Empty weight: 250 kg (551 lb)
  • Gross weight: 450 kg (992 lb)
  • Fuel capacity: 80 litres (18 imp gal; 21 US gal)
  • Powerplant: 1 × D-Motor LF39 six-cylinder, liquid cooled side-valve four-stroke flat six 4-litre gasoline aircraft engine, 89 kW (120 hp)
  • Main rotor diameter: 8.5 m (27 ft 11 in)
  • Main rotor area: 57 m2 (610 sq ft)
  • Propellers: 4-bladed ground adjustable

Performance

  • Maximum speed: 180 km/h (110 mph, 97 kn)
  • Cruise speed: 150 km/h (93 mph, 81 kn)
  • Rate of climb: 6 m/s (1,200 ft/min)
  • Disk loading: 7.9 kg/m2 (1.6 lb/sq ft)

See also

References
  1. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 196. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  2. Niki Rotor Aviation. "Kallithea". nikiaviation.com. Retrieved 18 November 2017.
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