Hi ,

I am planning on building a canard either the VARIEZE or LONG-EZ
because I would like to build an aircraft to travel long distances.

One of the drawbacks of a canard is that it requires a long runway
for take off.

There is a canard called the IBIS Canard a wooden structure using a
direct drive air cooled VW 65 HP. His thinking behind it is that the
maximum rpm for propeller is 2700 so as the engine idles @ 1000 rpm
he reached Max propeller rpm @ 3700. He even says 85 HP would cause
extra fuel consumption.

https://www.junqua-aircraft.com/html/framegene.htm

I was wondering by having an increased HP with reduction drive and
relevant propeller, Can one dramatically shorten the take off
distance of a CANARD like the VARIEZE or LONG-EZ ?

Zahid Rahman

Sure! all it takes in HP. Go see Emon Hurley at Hurley Engineering in
Coventry and get him to build a P-port two rotor with 250 HP and
install it in a Long EZ.

If the prop is 50% efficent at 50 feet per second forward speed you
will have  HP = 125 = 68750  pound feet per second.

So at 50 feet per second you have  1,375 pounds of thrust. That is
just about what a Long EZ weighs so basically the airplane will
accelerate initially at well over  one G. One G is 32 feet per second
per second.

You will be doing about 80 MPH in about 3 seconds. and a couple of
hundred feet down the runway.

65 HP would barely make it fly.

With a p-port rotary it would do well over 200 MPH.

Paul Lamar

Hey Zahid,

 I too am building a long EZ, actually I have two, and I bought a rebuilt
13B out of a mazda to use. I am convinced Paul is right. Much more HP and a
smaller package. Keep us posted on your progress. This is all new territory
for me so I can use all the help I can find. A friend has a bush plane that
is fun to fly but you can’t get any where with it as it is too slow. My
wife and I love to frequent the Moab Utah area… 1000 miles away, 2 days
drive, but with a near 200 mph plane its only 5+ hours. I think I live on
the edge of the planet, I don’t know of anybody out here that has
experience with converting a rotary to aircraft use. I’m wondering… where
is Coventry? I bet its on the east coast. Is there anybody out here in the
Pacific northwest that knows their stuff? Specifically the Oregon coast?

        Regards Jess Choat.

This one has been flying for over 600 hours. Owned and built by Perry Mick.
The engine is solidly bolted into the air frame. It also has a stock RX7
instrument panel. I uses a stock RX7 ECU.

Paul Lamar

Coventry (UK) is 99 miles from me and  5,500 miles from you.
I Would like use it to travel 3200 miles east of UK.
Thanks for confirming a two day travel.
Thanks for the pics.

Zahid Rahman

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