Blue Yonder EZ King Cobra

The Blue Yonder EZ King Cobra is a Canadian designed and built, single-engined, single-seat aircraft provided as a completed aircraft or in kit form by Blue Yonder Aviation. The aircraft is approximately a 60% scale replica of the Second World War Bell P-63 Kingcobra fighter.[1]

EZ King Cobra
Role Kit plane
National origin Canada
Manufacturer Blue Yonder Aviation
Designer Wayne Winters
First flight 1998
Introduction 1998
Primary user Private owners
Number built 1
Developed from Merlin
Variants EZ Harvard

The aircraft can be constructed in Canada as a basic ultra-light, or amateur-built aircraft, but is not currently available as an advanced ultra-light.[2][3]

Development

The EZ King Cobra was designed by Wayne Winters of Indus, Alberta and based on the earlier EZ Merlin. The project was started as a customer request for an ultralight category scale replica of a fighter and was later offered as a commercially available kit aircraft.

Winters created the EZ King Cobra by designing a new cantilever wing based on the Merlin wing, itself based on the Lazair wing design. The fuselage is constructed of welded 4130 steel tube and has a canopy and fin that resembles the original fighter design. The aircraft retained the Junker's ailerons of the original Merlin wing along with the Clark "Y" airfoil and construction featuring a leading edge "D" cell and foam ribs. The prototype is powered by a Rotax 582 two stroke engine of 64 hp (48 kW).[1][4]

The prototype of the new design flew in 1998. In the basic ultralight version gross weight is limited to the category maximum of 1,200 lb (544 kg).[1]

The EZ King Cobra can accommodate a variety of powerplants:[5]

Operational history

Despite being widely demonstrated no further orders have been received for the type and the prototype remains the sole flying example.[2]

Specifications (Rotax 582)

Data from Blue Yonder website[1]

General characteristics

  • Crew: one
  • Length: 21 ft (6.4 m)
  • Wingspan: 27 ft (8.2 m)
  • Height: 6 ft (1.8 m)
  • Wing area: 158 sq ft (14.7 sq m)
  • Airfoil: Clark Y[4]
  • Empty weight: 543 lb (246 kg)
  • Useful load: 657 lb (298 kg)
  • Loaded weight: 1200 lb (544 kg)
  • Powerplant: 1 × Rotax 582 fixed pitch, 64 hp (48 kW)
  • Propellers: 1 propeller, 1 per engine

Performance

gollark: Make them check each other's code somehow and destroy malfunctioning ones. You can get undetected error rates down low enough that there will probably not be problems.
gollark: You can *detect* an error fairly easily if you store a hash or something, which can be way smaller than the actual data, and just have your thing self-destruct if a mismatch is found.
gollark: > …and then a bit gets flipped and all of a sudden your threshold is now 2.001% by massError correction/detection is basically a solved problem now.
gollark: Great habitats, apart from being on Mercury.
gollark: Probably. They could be really light and small, or only use the sail to very slightly supplement the ion drive occasionally. Or just be very slow.

See also

References
  1. Winters, Wayne (n.d.). "EZ King Cobra". Archived from the original on 2009-02-26. Retrieved 2009-03-02.
  2. Transport Canada (7 November 2016). "Canadian Civil Aircraft Register". Retrieved 7 November 2016.
  3. Transport Canada (November 2008). "Listing of Models Eligible to be Registered as Advanced Ultra-Light Aeroplanes (AULA)". Retrieved 2009-03-02.
  4. Lednicer, David (October 2007). "The Incomplete Guide to Airfoil Usage". Archived from the original on 2008-05-15. Retrieved 2009-02-28.
  5. Winters, Wayne (n.d.). "EZ King Cobra Price Lists". Archived from the original on 2009-03-17. Retrieved 2009-03-02.
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