----- Original Message -----
Sent: Sunday, October 29, 2006 7:18
PM
Subject: [FlyRotary] Rotary Round up
2006
Hi folks,
Just got back home after a great stay at Shady Bend and
the Rotary Roundup. Sorry, some of you could not make it - it was a good
one. Seeing Tracy fire up his 20B for the first time was great!
The only down side is that I was the only rotary flyer to make it in due to
weather and other circumstances. One couple flew in (airline) from
Washington state to attend. Several make long car trips, from AR, MS,
NC and GA as well as from around Florida.
War stories,rotary stories, life histories and
other lies provided entertainment around the camp fire (as well as through out
the day) and it sure appeared a great time was had by all. Richard
Sohn gave us a presentation on the status of his one rotor - some very nice
looking aluminum castings (no unfortunately they won't work for the two
rotor). Tracy gave us his design goal approach to his RV-8 3 rotor
configurations - taking it from the mission he wanted it to perform and
leading to the design considerations this required.
I got to provide a bit of entertainment (prompted by
Laura) about my many (mis) adventures, hopefully, the stories will keep
somebody else from committing the same dumb --- err error in judgement or
analysis.
Laura, as always, saw to the lodging and vittles - A
super spread each meal and always coffee in the morning. I'm
sure I'm not the only one that left with more pounds than I arrived
with. If Tracy had her energy, he would have finished the RV-8 4 years
ago {:>)
Got a bit of a red face when I attempted to fire up my
rotary so folks could hear what a REAL rotary exhaust roar sounds like
{:>) - and totally and completely flooded the engine. I normally
fly with my EC2 controller in mode 1 in case I want to make and store some
fine MAP adjustments while flying. Well, not uncommon for me to still
have it in mode 1 when I land.
Well, with the new simulation diagnostics mode that
Tracy has now programmed it with - when the engine is NOT running and you hit
the store button in mode 1 it simulates the engine running at 3000 rpm and
pulses the injectors accordingly - well, if you have your fuel pumps on and
hit the store button (thinking that you are in mode zero and just injecting a
squirt of two of fuel) it fires all 4 injectors like its running at 3000 rpm
and all that pressurized fuel gets injected into the intake manifold - guess
what? It floods the engine in a second with fuel pouring out the exhaust
pipes. Well - this is what I later realized had happened several hours
later sitting around the campfire. We got to talking about why it
flooded and when I said I hit the button in mode 1 - Tracy said "you mean in
mode zero" - the light came on - Nope I was in mode 1 and sure enough it will
flood the engine if you have the fuel line pressurized and full of fuel and
engage the diagnostics mode. Tracy indicated that since he (and
presumable others) fly with mode 1 set up that he may move the diagnostics
mode to the seldom used mode 2 to preclude dummies from flooding their
engines.
But, fortunately this morning the engine fired on the
first couple of blade rotations - whew! Had a bit of a head wind but an
uneventful trip.
I was honored to have a "photo" of my rotary powered
RV-6A adorn the Rotary roundup cake this year (see photo).
So hope those who could not make it this year can make
it next year.
--
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