The Blue Yonder Twin Engine EZ Flyer is a Canadian designed and built, pusher configuration twin-engined, tandem two-seat, open cockpit aircraft provided as a completed aircraft or in kit form by

Blue Yonder Aviation Blue is one of the three primary colours in the RYB color model, RYB colour model (traditional colour theory), as well as in the RGB color model, RGB (additive) colour model. It lies between Violet (color), violet and cyan on the optical sp ...

.Hunt, Adam: ''Twice the fun! Flying the Twin Engine EZ Flyer'',

COPA Copa or COPA may refer to: COPA COPA may refer to: * Computer Operator Programming Assistant. trade of ITI * Child Online Protection Act, a former U.S. law to protect minors from certain material on the internet * Canadian Owners and Pilots Ass ...

Flight publication, page C-1, September 2005 The aircraft can be constructed in Canada as a basic ultra-light, or

amateur-built aircraft Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.Armstrong, Kenn ...

Development

The Twin Engine EZ Flyer was designed by Wayne Winters of

Indus, Alberta Indus is a hamlet in southern Alberta, Canada under the jurisdiction of Rocky View County. It is home to the Bill Herron Arena Indus is located approximately 6.1 km (3.8 mi) east of the City of Calgary's eastern limits and 24 k ...

and based on the earlier EZ Flyer. Taking inspiration from the twin-engined

Ultraflight Lazair The UltraFlight Lazair is a family of Canadian designed and built twin-engine ultralight aircraft that were sold in kit form between 1979 and 1984. It was one of the first twin-engined ultralights. More Lazairs have been registered i ...

and the Leza-Lockwood Air Cam the aircraft was especially designed for the air-to-ground photography role and also for use over hostile terrain where twin engine safety was desirable. Winters altered the original EZ Flyer design by creating a new centre wing section to mount two powerplants instead of one, increasing the wingspan to and the wing area to . The fuselage was also stretched to total, to give a more unimpeded view from the front seat. 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. Like the original EZ Flyer, the twin engine version has an open lattice, "N" girder fuselage constructed from 4130 steel tube along with an enlarged vertical tail to improve handling in engine-out situations. The prototype has two seats in

tandem Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction. The original use of the term in English was in ''tandem harness'', which is used for two ...

and is powered by two

Rotax 503 The Rotax 503 is a , inline 2-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.Raisner, William: ''LEAF catlog'', pages 6-105. Leading Edge Airfoils, 1995. As of 2011 the Rot ...

two stroke engines of . The prototype of the new design flew in 1999. In the basic ultralight version gross weight is limited to the category maximum of . The amateur-built version has a gross weight of . The Twin Engine EZ Flyer can be equipped with a variety of powerplants, all mounted side-by-side in pusher configuration: *

Rotax 582 The Rotax 582 is a two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating ...

* Rotax 912 *

Rotax 912S The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, ...

Operational history

Despite being widely demonstrated and reviewed, the prototype remains the sole registered example.

Operators

- flight school

Specifications (Twin Engine EZ Flyer)

References

External links