Nice airplane, but it does say you can use lighter engines

but not

heavier engines siting the Continental 65HP as an example of too

heavy. My

BD-4 will have wheel pants almost this big as this bird. The 12A

would have

plenty of excess power for this design, but the installed weight

will be that

of a O320 or more. You could scale up the plans enough to account

for the

increased weight, and do a new stress analysis, if you love that

shape. The

VariViggen is a Rutan designed Delta wing canard in all wood, with

tandem

seating. Very fast and designed for the heavy 320s and 360s. A 12A

or 13B

would work there. It has a small footprint if building space is a

problem.

Lynn E. Hanover

Lynn
This is a copy of the engine section on the IBIS web site.
It includes some rotary's.
Royce

I suspect they were talking about something like the Midwest Rotary engine
which weighs about 115 lbs.   A 12A will inevitably weigh a lot more than a
Con. 65.   I love the Mazda rotary but it's not the right engine for every
plane.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

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