Yes on the R&D life work but, sorry not the rotary engine. Its 'cleaner
energy research' which has snagged me:). IMHO all ICE are going the way of
the dinosaurs ironically because they depended on them. The Wankel is such
a nice dinosaur though. To bad its won't have a chance to live a full life.
I've have actually building the airplane part of the equation right along
you know. Nice idea on the adjustable P-port timing mechanism but not sure
of the benefits and I couldn't imagine how to make it without constructing a
special housing from scratch. Sorry I'll have to pass on this one. Even
your JB Weld wouldn't be up to the challenge:)
Believe it or not a good smooth idle is not a big concern of mine. What
always has concerned me is achieving the best BSFC at cruise speed, and
cooling the engine. Your advice therefore on the aerodynamics of cooling
and intake systems is priceless. My last concern before boring the test
engine housings are the slide throttle placement and injectors and manifold
taps come into play on the decision. Remember I will run ethanol. Shooting
it in the bell mouths will create a nice refrigerator in the intake manifold
and I believe may cause an increase in droplet size or condensation.
Here is what the guys making AGE 85 in South Dakota Univ. are saying lately.
They "installed an Airflow Performance fuel injection system to compare
with the stock Bendix system" after they put 700 hours of testing on the
airplane running both fuels.
Press Releases
Mooney: Airborne Again.
Thursday, May 11, 2006 10:45 AM
The engine modifications and overhaul have been completed. 25 hours have
been flown in order to allow for a proper engine break-in period. Initial
results indicate more horsepower, better fuel efficiency and cooler engine
temperatures. After replicating the fuel efficiency test flights from before
the modifications, the next phase of testing is detonation performance of
the 10:1 piston modification. AVL equipment from the Seneca is currently
being installed and testing should begin shortly. A modified Light Speed
Engineering Plasma III CDI ignition system has been installed, which gives
the pilot the ability to vary ignition timing from the cockpit during
flight. This feature will allow for multiple timing points to be tested in
one flight and thus enable a better understanding of the effects of timing
on detonation.
Doug Fir
It is a small world. Interesting that they are using Klaus's
"Plasma" ignition system. Maybe they believe it :)
I think you need to turbo charge without an inter cooler
and direct inject the alcohol into the compression chamber after
the P-port closes to cool the charge. An inter cooler is
basically an energy drain wasting the heat of the charge.
Paul Lamar ...No rotor no motor.
Paul
Yes on Copperstate on Saturday. I probably won't have time to fly to Santa
Paula first as I am coming in to Sacto on the 25th resting a day and then
flying to Flagstaff on the 27th. I'll be arriving in Casa Grande on
Saturday morning and leaving Sunday so I'll see you there with the pump.
That will make a good prop for your lecture as well.
Two 750cc injectors in the housings probably won't not deliver enough fuel
to get to 300hp. on take-off Especially if the fuel is ethanol. This was
the main reason (4 injectors per manifold) I considered a horizontal slide
throttle and cast aluminum elbow with two more injectors. That and it is
easy to encased the lower injectors in a box that goes from the housing to
the slide throttle.
Perhaps lost wax for a few units is possible. Collecting beer cans now..
Doug Fir
The direct injection takes max advantage of the alcohol's
unique ability to cool off the charge. It also insures that
no un burned fuel goes directly out the exhaust down
past the rotor face.
There is nothing wrong
with four injectors up there. Point them in horizontally.
RB did that on the land speed record 3rd gen RX7
three rotor with three turbo chargers along with an ice
water intercooler. (268 MPH)
--
Paul Lamar ...No rotor no motor.
Paul,
Let me get this correct. You are saying you can fit four
injectors on each housing above the manifold? Room there is?
Doug Fir
No two on each housing. Maybe three using the new skinny
ones.
Paul Lamar ...No rotor no motor.
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