Here is the VTOL cooling layout.

The fuel tanks are 20 gallons each. I was stunned and pleased on how much volume
I had for fuel with only a 15% thick airfoil. I actually had to cut them down
from 35 gallons 70 gallons total as there was no way we could lift that much fuel.
The two pass rad is 18" by 30" from a late model Dodge pickup.
The oil cooler is in the other wing.
The cooling air ducts run along side the pilot and pax.
The air comes in the bottom of the rad with a Kays & London
wedge diffuser and is sucked out the top with the engine driven fan during takeoff
mode. An exhaust ejector will also work here and is near ideal. I just don't have
it drawn in yet.

This config is idea for an exhaust ejector.


-- 
Paul Lamar ...No rotor no motor.

Pretty cool Paul! When can I start molds??  :-D

Jarrett

I am still coming up with good ideas. I changed the cooling flow
around and I now have the air intakes on the wing tips with 5 inch diameter
cylinders. I needed those anyway for the landing gear. I did away with the two
ducts in the cockpit as that gave more room for the pilot and pax. Also it shortened
the duct work for less friction losses. I also added the exhaust ejector.
I can now go back up on the tank size so if someone wants to fly solo they
can get more range.

Next project is design the control mixer for the elevons and the gear box
pointer. After that it might be time to kill the engineer :)