Paul,

I slapped my forehead when I figured this out.....DUH!

Considering the present cowling shape, I studied a variation of your
folded
core cooling block. How about one fold....actually, two radiator cores
with
a common tank between them in a vee shape.....intake port at the top and
exit port at the bottom. Scott Gettings keeps going back to this plan, but
the problem was fitting the vertical radiators in a gradually sloping
cowling. Then it hits me...why not give the vee shaped radiators a 90
degree
flip. Now, we've got a ton of room for cooling core because it lends
itself
to the cowling shape (see One fold horizontal radiator (Large).jpg). We
have
enough room now put more cooling core for water AND oil than we need. With
the rads mounted vertically. it adapts well to wedge diffusers in a
traditional shaped horizontal intake.

I've also included some views of the cowling. Note that there is a lot of
exit air room down both sides of the engine (see Cowling rear (Large).jpg)

In the attached file (One fold horizontal radiator - Thicker Core Numbers
(Large).jpg), there are some numbers for 1.75" and 2" cores.

Q1. What do you think about this plan? What adjustments would you like to
see?

Q2. The 1.5" core offers about what the RX8 has in cooling. Would that be
enough? I sure don't want to overheat in the summer on a Texas taxiway. If
there is any doubt I'd rather have the cooling drag than the heat.

Q3. Can the top intake port and the bottom exit port be on the same side
of
a radiator, or is it best to have them on opposite sides?

Thanks for you thoughts

Sandy McNabb
Renesis in a Glass Goose

Looks like it will work fine if you put the tanks on the sides instead
of on the ends. That way top and bottom rad will be in parallel
instead of  series.

I talked to the president of Fluiddyne and he was not interested.
I think he was feeling the down turn, He wanted a minimum of 12
cores 12 by 12 by 1 at $300 each. They are worth $100 each at the most.
In other words $3600. He was not familiar with thermo principles.
The engineer if any was not there.

I found a company in Brisbane Aus that understood what we were trying
to do and agreed to make us anything we want including mounting the
tubes at an angle so they are aligned with the air flow. The exchange
rate is good with Aus and George Lendridge lives in Brisbane.
The company is PWR 103 Lahrs Road Orrneau Queensland 4208
The guys name is Matt Bryson 61 7 55547 16111
Email is matthew@pwr.com.au

More on this when I get home.

Paul Lamar

Paul,
How did you get onto this chap?
Do I mention your name?
I'm on to it first thing Monday.
Looks like he's in a large Industrial area, half way between Brisbane and
the Gold Coast. Lahrs Rd. is a feeder road running parallel with the
Freeway. Although I won't be able to visit him as I still can't drive for at
least another 2 weeks. However a phone call to touch base doesn't hurt.
George (down under)


They had a booth in the Performance Industry Trade show in Orlando Florida.
Matt is a very knowledgeable guy. He has the Kays & London book Compact Heat Exchangers so he immdiately knew what I was talking about.  I showed him my Book on How to Cool Your Wankel. He said he was going to buy a copy. When I get home I'll email
him and tell him you will call. I'll just copy this email to
him right now. His last name is Bryson.

This works two ways guys. If they help us out we should put a PWR decal on the
airplane. I learned this at the show in a seminar.

Paul Lamar

Hey Paul,

Thanks for copying me on this email, and your kind words below.

I would be interested in seeing some of the drawings,sketches or photos of your intentions for this project.

Hope to hear from you soon.

Kind regards,

Matthew

PWR

P.S I am flying out of Orlando on Sunday and have some business to do back in Sydney Australia on Tuesday before returning home to Brisbane. I will be back in the office on Wednesday.

Thanks Matt here is what Sandy has in mind. It is best if the rads are in parralle.

Paul Lamar