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Message
Can someone tell me the width requirements for a rotary
installation (preferably Renesis although I suppose that intake / exhaust
details are not yet worked out)?
Also the minimum distance from thrust
centerline to top of cowl Lastly, are there any issues about having an oil
cooler a long way from the engine?
Hi Mike. I'm
afraid there aren't really any absolute answers to the size questions. The
engine itself is very compact, but you need intake, exhaust, alternator,
oil filter, etc. These are the items that make the engine compartment a
challenge. For the most part, they can be made to fit where you have
space, but there are limits of course. Getting the oil and water cooling
out of the cowl will help, and as long as you have good size hoses, there's no
real problem with remote mounting those items.
Musing on a T51 Titan with renesis;
Maximum FWF is 340lbs and from my
reading I think that without radiators and oil cooler (in belly scoop) the FWF
for a Renesis should be close to 300lbs.
Not counting radiators, or oil coolers,
I'd certainly say you could make the 340 lb weight limit. I looked up the
T51, and they list the engine as a 100 hp Rotax 912. Do they actually
allow larger engines, or is the 340 number something that builders have
determined to be the most weight to stay within CG. Sounds like
you've done enough research to realize that a Renesis will be closer to 250
HP. Sounds like fun :-)
If someone were looking for HP in the
range of 90-130 or so, with closer to 225# FWF, there are several folks working on
single rotor engines. A single rotor would be a much more natural
substitute for a 912. Width and height measurements are the same,
but it's shorter.
Cheers,
Rusty (more power
Scottie!)
13B powered
RV-3
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