Blue Yonder EZ King Cobra
|EZ King Cobra|
|Manufacturer||Blue Yonder Aviation|
|Primary user||Private owners|
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.
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).
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).
The EZ King Cobra can accommodate a variety of powerplants:
Despite being widely demonstrated no further orders have been received for the type and the prototype remains the sole flying example.
Specifications (Rotax 582)
Data from Blue Yonder website
- 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
- 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
- Maximum speed: 120 mph (194 km/h)
- Cruise speed: 90 mph (146 km/h)
- Stall speed: 30 mph (49 km/h)
- Range: 460 sm (745 km)
- Service ceiling: 14,000 ft (4270 m)
- Power/mass: 18.75 lb/hp (0.09 kW/kg)
- Winters, Wayne (n.d.). "EZ King Cobra". Archived from the original on 2009-02-26. Retrieved 2009-03-02.
- Transport Canada (7 November 2016). "Canadian Civil Aircraft Register". Retrieved 7 November 2016.
- Transport Canada (November 2008). "Listing of Models Eligible to be Registered as Advanced Ultra-Light Aeroplanes (AULA)". Retrieved 2009-03-02.
- Lednicer, David (October 2007). "The Incomplete Guide to Airfoil Usage". Retrieved 2009-02-28.
- 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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