Well guys, here's some pictures of the project.  If we can ever find
time to work on it....

Our solution to positioning the motor accurately involved replacing
the
Oil pan with a load bearing plate, indexed to another load bearing
plate
underneath, and supported in 3 locations by 2" bolts acting as a
small
screw jack.  Maybe the picture explains it better.

We've also been putting spars in wing skins and amassing parts to
make
the motor go.  The bell housing is the original made by our own
George
down under...The prop is by our resident rotary ducted fan expert
Perry
Mick.  Redrive is Tracy Crook, of course.

We're moving to be closer to the project, and hopefully we'll be able
to
be at Tracy's next year.

Chris Cosman

Hey thanks for the pictures Chris.
What does the bell housing weigh Chris?

Looks like you need some volunteers. Anybody want to move to Salt Lake
City
and work on a fun project?

BTW Chris what happened to the web site with the pictures of the
plane?

Paul Lamar

The bell housing weighed 13.6 pounds when we started.  we had to do
some
additional machining to get it to work right with Tracy's redrive and a
Mazda starter.

The website, broken though it is, can be found at mk1studio.com.  It's
Matt's robotics site, but at the bottom is an aircraft link.

I hesitate to ask for help from you guys because I know we're all
busy,but....if anyone were to say, have extensive experience in a 3D
modeling program and would like to put together a firewall forward view
for us, we could work out a rides for help arrangement.  Like from So
Cal to Florida, for example.  Maybe even during the month of October.

Firewall, 44" wide X 28" tall...

Chris Cosman
801.455.5655

That is not so bad on the bell house. A bunch of three inch holes ought
to take out another couple of pounds.

No problem on the 3D Chris. Where is the engine thrust line?
I assume the hard points can go anywhere on the composite sandwich
firewall.

Paul Lamar

Thank-you  very much Paul.

The thrust line is a bit subjective right now.  We're trying to get it
as high up on the firewall as possible to preserve as much prop
clearance as we can....and still get the induction system in.  I do know
it's perpendicular to the firewall.  The induction tubes going over the
engine are 2.5" ID 16 guage, I believe.

Engine mount points will be anywhere on the firewall where it meets the
fuselage shell. I bought George's bell housing so we could get the wide
mounting points that are so popular these days.

There will be a turbo as well, but we won't be using it as a
supercharger (this time).  We're thinking of pulling air past the oil
cooler/pan combo (your idea), past the hot exhaust headers, then
ejecting it out the bottom of the cowl outer concentric with the exhaust
(high bypass fan style) and picking up our turbo compound efficiency in
the form of thrust.  Turbo sizing for this application has yet to be
determined.  A fair amount of ducting also has to be considered.

Does that sound ambitious enough?

Chris Cosman

Piece of cake. I need the outline of the firewall too. I'll see how high
I can get the thrust line. You need a backup plan on "cooler/pan combo"
in case it does not work :)

Paul Lamar
 
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