If anybody needs the MM tube dimensions let me know.
The motor plate and welding cups are off the shelf.
See the bottom of the first page on the web site.

Paul Lamar

Paul,

Do you have 3D models for the 13B you would like to share with me?  The more
models you have the better.  I am using SolidWorks to design a custom
aircraft around the 13B.  I have not decided if I need turbo or not.  I
really only need 200 HP.  Thank you!


Best regards,
Glen DeBusschere

I use Rhino.

Paul Lamar

Paul,

I understand.  Can you output to *.STEP or *.IGS format?

-Glen

Yes.,
Does your ISP accept zip files? These files are generally too big to email
unless zipped.

Paul Lamar



Paul,

Yes, it does.  I have Cox Communications and they are good about that.
However, you can send it also to my other account: glen@cleverbugdesign.com
- either one should work - or you can send it to both.  Thanks!

Glen

OK try this.

Paul Lamar

Paul,

Thank you.  I was able to open it and import it into my assembly.  This
gives me a really good idea for space requirements.  I am designing a
tractor-prop configuration but I guess the firewall forward spacing would be
similar as the Cozy one you sent me.
Thanks again!

-Glen

I got lots of tractors.

If you give me the dimensions on the firewall hard points, the thrust
line position and the distance to the prop flange I'll do a lay out
for free. There are several options for rear mounts. The best way
is to build it into the oil pan.

Tractor or pusher.

Most airplanes have limited space under the engine for cooling
systems. Needed for tandem and pusher designs.

Side by side tractors the cooling system can vertically go on the cool
side of the engine. The left side. Then you can use the stock
cowl openings. Always put the diffuser between the hot engine
and the rad. A one degree increase in under cowl temperature will result
in a 1% loss of cooling. In other words make sure the rad
gets the coolest air possible.

The great thing about the rotary
compared to other water cooled engines is the small size allows
putting the cooling system under the cowl. All the liquid cooled
WW II fighters had the cooling system mounted someplace else.

Mike Wills RV4 is one of the best tandem layouts I have ever seen.
It cools extremely well. It never got over 168 F while Dave Leonard
ran it up for about 30 minutes. The oil was cooler than the water.
The narrow cowl has less internal volume than a stock RV4 cowl
with cheeks.

Mike cleverly extended the back of the oil pan back about 5 inches
behind the engine as the front of the oil pan must come to a wedge so the water rad diffuser has the room it needs.

The gussets in the motor mount are unnecessary and the rear mount could
be simplified but all and all it is one of the best so far.

Send me a rendering of yours and I'll give you a free critique :)

Paul Lamar