>> Tracy's new fly by wire throttle.
I guess it could be done so he did it :)
--
Paul Lamar ...No rotor no motor.
Paul
This is the throttle from the RV-8?. With a P-port manifold to
could it be used between the compressor and the intercooler?
Hmm .....combined with his electronic mixture control and an
electric C/S prop, the control panel real estate area for these
three item becomes very small. Game like. Failure mode with
the E-throttle would best be W.O.T. I
presume.
I have a central control stick in my design now with arm
rests built into the sides of the plane. Just a thought
and perhaps only an experiment. I would like to mount an
auxiliary electronic side joy stick coupled to the
auto pilot servos so the plane in that mode would be
Fly-By-Wire in a sense.
Touching the manual control stick would disengage the
auto pilot and/or side joy stick reverting back to
manual inputs to the cables.
Doug in Japan.
Yep the RX8 throttle is fly by wire. I have never been
able to get it to open more than 80%. I guess the air is too
hot around here.
As I said recently what you really NEED in an airplane
is two magnetos and a carb :) In other words KISS.
BTW where in the world are you? I thought you were on your way to
Placerville. Call me from Lancaster if you need help.
Paul Lamar ...No rotor no motor.
Paul,
Yea I got the part about magnetos and carb loud and clear:)
Magnetos still have some advantages for me, carbs not.
I'm still in Japan. I had to delay my departure date a week
for various reasons. I'll be seeing Tom Webber on the 18th
and working on the plane on the 19th and 20th. Flying soon
afterwards I hope.
Doug
---------------------------
Hi Paul: The advantage of FI over the carb has to do with carb ice and
even distribution of mixture. In terms of BSFC the carb can be as good
as FI. When FI was first introduced on outboard motors the FI units had
worse BSFC than the carb engines. This was mainly due to lack of the O2
sensing which was not included because of water in the exhaust. The
best BSFC in the carb engines was achieved with one carb per cylinder.
Bob Y
Compared to a total electrical system failure providing carb heat
is a piece of cake :) EFI and electronic ignition suck down
a lot of amps. If you are flying 500 to 900 mile over water legs
and you lose the electrical system you are not going to
make it on the back up battery alone. There are places in
Alaska where it is 500 miles between suitable landing
sites.
Totally dual electrical systems are expensive and heavy.
Paul Lamar ...No rotor no motor.
Unless you can put a Mag and a mechanical fuel pump on it you still
need a secondary electrical system.
I have two batteries and two alternators and on takeoff I run one
ignition system and one fuel pump on one battery and the other
ignition and pump on the other battery and then once in flight I
switch them both to the main battery.
Ken
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