indigoonlatigo(at)msn.com
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 Posted: Tue Dec 05, 2006 9:09 pm Post subject: More engine stuff, four broken legs |
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[quote]From: "Eric Wolf" <Eric(at)wolfaerospace.com>
To: "'John Gonzalez'" <indigoonlatigo(at)msn.com>
Subject: RE: More engine stuff
Date: Wed, 22 Mar 2006 18:21:21 -0800
If I won the lottery I would move to Hawaii and surf all day HAHA!!!
I have a program that checks if something is strong enough for the load
that
it is going to see. I have made everything 5 times stronger. I have A LOT
of
experience with CAD and engineering aircraft parts. I also have made tons
of
tooling and machined all kinds of different metals. I have also put lots on
engines together. I am taking the approach that will make the engine run
the
first time. I will then put all the parts on a diet. My engine will make
way
more power, so a few pounds will not matter at first. My 8 cylinder will be
about 50 Lbs heavier than the 6 cylinder it will replace. That is with
water
, radiator, complete engine. I have a full working model of all the parts
that make the engine. The program has a motion simulator and a stress
analysis program that will show week spots. It is true that once we have
all
the parts to assemble the engine, there will be some changes required once
we have it running. We have made tooling that is more complicated than an
engine so we are used to this kind of work. We work with close tolerances
every day. I honestly think making engines will be a step back in terms of
difficulty and complexity compared to what we do now. I have been designing
it now for 3 years in my spare time. I have all the equipment now so that
is
out of the way. That is way more than most people who are making an engine
have done. One thing that I have that they do not is a complete
manufacturing facility to make parts as I need them. I do not need to go
outside to get anything. Valves, valve springs, pistons, rings, seals,
bolts, etc, are readily available from a catalog. I will make heads, case
halves, intake manifold, oil pan, valve covers, etc from aluminum castings
here in my shop. And crank, cam, and other steel parts on my CNC's from
billet stock. When I look at projects I have done before that were large
and
complex, this is not that bad. I think if money were no problem and I could
put my whole shop to work on it, I could do it in 6 months at a cost of
about 500K. When I sell my plane I will have 100K. I would say that 400K is
for labor and 100K for material and tooling, mostly tooling. I bought a
lottery ticket today, so cross your fingers. I bought one last week, but
didn’t even get one number!! One good thing is that when I do get this done
I will need someone to put some hours on the engine. I will buy a Cirrus
and
swap engines. So you are welcome to fly it as much as you want. All I would
ask is that the person flying make notes of how it performs. I would really
check it out a lot before I would let anyone fly it though. I would fly it
with a parachute for the first few flights even though it has one on the
plane. Always have a backup plan! I would not want anyone to get hurt from
something a made. This engine will be built like a Swiss watch and be
better
than anything out there. I will sell them at the same price as what it will
replace. The two big engine manufacturers Will probably down talk my
engine,
but it will be an awesome engine.
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