We hired Nils Castillo, a local Motec dealer, to wire the TTC
aircraft. Nils had extensive experience wiring off road racers with
the Motec systems.

What we did not realize was the wiring pin numbers were stored in the
M800 memory. We wasted a couple of months because we did not know
that. Jim Mederer told us nothing about that. My guess he assumed we
knew that. So did the Motec rep. If we had known that we would have
powered up the M800 months ago.

After you get power to the M800 you must load the pertinent file into
your Windows PC.

The attached spread sheet file contains  the wiring data.

A couple more days and we will be ready to run the engine at low
power. I will shoot a video and up load it to You Tube.

Paul Lamar



Paul,  you make me feel normal. I usually blunder in to find the
instructions after.  Looks good and hope to hear the beast run.

Neil.


I am going to attempt to do a you tube video with a walk around
hangar tour comparing the TTC engine with a PT6 turbo prop plane we
have as an introduction.

And then  insert the TTC run up video segment.


Paul Lamar



Can't wait for the PT6 comparison, Rotary comparison, We run a PT6-27 in
the Turbo Beaver, CF-OES

Steve Carlisle

What is the fuel burn Steve? What HP level do you cruise it at ?

Some of the data I have is 650 HP for five minutes and 500 HP continuous.
227 US gallons with a range 767 statue miles.  That is 3.38 miles per gallon.

Max cruise speed is 202 MPH. So 767 miles by 3.79 hours.
227 divided by 3.38 is  60 gallons an hour.  Diesel fuel is about 7 pounds
per gallon or 420 pounds of fuel per hour.  That translate to a BSFC
of  420 divided by 500 HP or .84 BSFC.


http://www.wipaire.com/myaircraft/dehavilland/DHC2_MK1/modifications.php#bossbeaver

A turbo 3 rotor could make 500 HP all day long with a worst case BSFC
(full rich, not leaned) of .65 BSFC. Leaned it is .47 BSFC or about half
the fuel burn of a PT6.. A turbo compound version would drop the
fuel burn to below .4.

The turbo 3 rotor wins hands.  The cost of a PT6 is well above $200,000
as I recall. One can build a lot of turbo 3 rotors with stock Mazda rotor
housings and stock Mazda rotors for $200,000. The weight is likely
to be half of  the weight of a PT6. The turbo is off the shelf as is the
necessary oil and water pumps.  A PT6 gear box could be used.

However the 3 rotor is not certified (yet) so you cannot take paid passengers.

BTW My son, James Paul Lamar, has lots of hours in twin otter's with PT6's.
What is your fuel burn JP?

Paul Lamar

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