The Blue Yonder EZ Harvard is a Canadian designed and built, single-engined, single-seat 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 ...

. The aircraft is a 75% scale replica of the

North American Harvard The North American Aviation T-6 Texan is an American single-engined advanced trainer aircraft used to train pilots of the United States Army Air Forces (USAAF), United States Navy, Royal Air Force, Royal Canadian Air Force and other air forces ...

trainer of the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ...

. 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 ...

, but is not currently available as an advanced ultra-light.

Development

The EZ Harvard 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 King Cobra. The project was started as a customer request for a scale Harvard replica and was later offered as a commercially available kit aircraft. Winters created the EZ Harvard by using the

cantilever A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a cant ...

wing design from the EZ King Cobra and added additional span, to increase the wingspan to and the wing area to . The fuselage was redesigned to give the round cross section, glazed canopy and distinctive fin shape of the original Harvard. The aircraft retained the Junkers ailerons of the original Merlin wing along with the Clark "Y" airfoil and construction featuring a leading edge "D" cell and foam ribs. The fuselage is constructed of welded 4130 steel tube. Even though the Harvard was originally a two-seat aircraft the EZ Harvard is a single seater with the prototype powered by a

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 ...

two stroke engine of . The prototype of the new design flew in 2002. In the basic ultralight version gross weight is limited to the category maximum of . The EZ Harvard has a large round cowling that can accommodate a variety of powerplants: *

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 ...

* Rotax 912

Operational history

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

Specifications (Rotax 582)

References

External links

Blue Yonder Aviation
{{Uncertified aircraft developed in Canada Low-wing aircraft EZ Harvard 2000s Canadian ultralight aircraft Homebuilt aircraft Replica aircraft

Development

Operational history

Specifications (Rotax 582)

See also

References

External links