Niki 2004 Explained

The Niki 2004 is a family of Bulgarian autogyros, designed and produced by Niki Rotor Aviation of Pravets. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.[1]

Design and development

The Niki 2004 features a single main rotor, a two-seats-in side-by-side configuration enclosed cockpit, tricycle landing gear and a four-cylinder, air-cooled, four-stroke, single-ignition 1500NaN0 Subaru EJ22 auto-conversion engine in pusher configuration.

The aircraft fuselage is made from monocoque aluminum sheet, with a steel rotor mast and the twin tails supported by aluminium tubing. The series uses American-made Vortech and SportCopter rotor blades with a 9.141NaN1 diameter and a chord of 201NaN1. The 2004M model has an empty weight of 3500NaN0 and a gross weight of 5500NaN0, giving a useful load of 2000NaN0.

Variants

2004
  • Original version with a gross weight of 4500NaN0, a fuselage length of 3.91NaN1 and a cruise speed of 1300NaN0.[2]
    2004M
  • Stretched version with a fuselage length of 4.2251NaN1 and a cruise speed of 1300NaN0.[3]
    2008
  • Improved version with a gross weight of 4500NaN0, a fuselage length of 4.2251NaN1 and a cruise speed of 1500NaN0.[4]

    Notes and References

    1. Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 184. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
    2. Web site: Gyrocopter NIKI 2004 . Niki Aviation . 2011-01-25 . 2013-01-09. https://web.archive.org/web/20111018152352/http://en.nikiaviation.com/products/niki_2004 . 18 October 2011.
    3. Web site: Gyrocopter NIKI 2004 M . Niki Aviation . 2011-01-25 . 2013-01-09. https://web.archive.org/web/20111018152357/http://en.nikiaviation.com/products/niki_2004_m . 18 October 2011.
    4. Web site: Gyrocopter NIKI 2008. Niki Aviation . 2011-01-25 . 2013-01-09. https://web.archive.org/web/20111018152402/http://en.nikiaviation.com/products/niki_2008 . 18 October 2011.