"Elie, Larry (L.D.)" wrote:

Hi Paul, I hope this e-mail address is still good, as I haven't mailed you in 5 years or so...

Do you know whose 3.1 L 120 deg. V-6 block Bombarder is using for the V-220 and V-300T av engines?
As casting plants are expensive, I doubt Bombarder is making their own.  As you may have read, the
V-220 is certified at 220 hp @ 6,000 RPM & the V-300T (turbo of course) does 300 hp @ 6,000.  Water
cooled, they have a 3:1 PRU, and the whole thing is electronically controlled.  There are any number
of 3.1 L engines out there that they might have based this on.  I just don't know which.

Larry Elie
Ford Research & Advanced

Hey Larry long time no hear from. How's it going?
I was not paying any attention but if it is at OshKosh I'll take a closer look.
It did not occur to me that it was based on an automotive block.

In any event if they certify it they will have trouble as the FAA has been
going around and around with Thelert(s) on their MB based diesel AC engine.
The FAA wants to see a paper trail from the mine to the air. 
Bombarder is a big company. Maybe they own the die casting plant that
makes the block for the auto manufacture. If so it will never hold
up on aircraft duty cycles.

What the FAA said on the Thelert is you have to scrap it after 1200 hour 
or ten years whichever comes first. No rebuilding. Also Thelert must disassemble 
it and inspect all parts for material and dimensions. That makes it 
unacceptably expensive.

BTW Remember I was having trouble with my 94 Mercury V8 OBD II? I finally figured
it out. The guy that wrote the OBD II software screwed up. "Bank one lean." does not
mean both banks are not lean :) Turned out to be speck of dust on the hot wire
MAF sensor. One would think it was one of the two bank O2 sensors.

One another subject while I have you on line here is something I am proposing
to Mazda on the RX8 engine. What do you think?

Paul Lamar
 
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