Blue Yonder EZ Fun Flyer

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EZ Fun Flyer
Role Ultralight aircraft
National origin Canada
Manufacturer Blue Yonder Aviation
Designer Wayne Winters
Introduction 2011
Status In production
Number built 1
Unit cost
US$13,999 (complete, 2011)
Developed from Ultraflight Lazair

The Blue Yonder EZ Fun Flyer is a Canadian twin-engined ultralight aircraft that was designed by Wayne Winters and is produced by Blue Yonder Aviation of Indus, Alberta. The aircraft is supplied as a kit for amateur construction.[1]

Design and development

Even though it is a Canadian design, the aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg). The aircraft has a standard empty weight of 251 lb (114 kg). It features a strut-braced high-wing, inverted V-tail, a single-seat, open cockpit, conventional landing gear and twin engines in tractor configuration. The EZ Fun Flyer closely resembles the Ultraflight Lazair in configuration and dimensions.[1]

The aircraft structure is made from aluminum tubing, with foam wing ribs. Its 34 ft (10.4 m) span wing is supported by a single lift strut per side. The engines are Radne Raket 120 single cylinder, 120cc, air-cooled, two stroke powered hang glider powerplants of 14 hp (10 kW) each, which give a cruise speed of 50 mph (80 km/h) and a rate of climb of 400 ft/min (2.0 m/s).[1][2]

The construction time from the supplied kit is estimated by the designer at 160 hours.[1]

Specifications (EZ Fun Flyer)

Data from KitPlanes[1]

General characteristics

  • Crew: one
  • Length: 15 ft (4.6 m)
  • Wingspan: 34 ft (10 m)
  • Wing area: 146 sq ft (13.6 m2)
  • Empty weight: 251 lb (114 kg)
  • Gross weight: 600 lb (272 kg)
  • Fuel capacity: 6 U.S. gallons (23 L; 5.0 imp gal)
  • Powerplant: 2 × Radne Raket 120 single-cylinder, two-stroke, 120cc, air-cooled powered hang glider engines, 14 hp (10 kW) each

Performance

  • Cruise speed: 50 mph (43 kn; 80 km/h)
  • Stall speed: 17 mph (15 kn; 27 km/h)
  • Range: 100 mi (87 nmi; 161 km)
  • Rate of climb: 400 ft/min (2.0 m/s)

References

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External links

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Vandermeullen, Richard: 2011 Kit Aircraft Buyer's Guide, Kitplanes, Volume 28, Number 12, December 2011, page 46. Belvoir Publications. ISSN 0891-1851
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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