Three rotors are getting very expensive but that would be the best
    for the Viking.
    The problem is the FAA will not approve it until Mistral gets the
    300 HP 3 rotor certified
    any day now.


    You can also do it your self and save a couple of thou. I recommend
    P-port engines
    which up the HP with no penalty in weight or fuel burn per HP generated.

    Paul Lamar ...No rotor no motor.


The Viking will be an experimental I am using parts to build a new plane
from scratch. I also have one that I am flying though.

I will concentrate on the Cougar for now.

I looked all over and do not know the difference or what makes an engine
a P-Port.

Either of these? 13B RESI, or 13B DEI.

Dan


Read this Dan.
http://www.rotaryeng.net/intake.html

Also here is a video on p-ports.
 http://www.youtube.com/watch?v=LkKw72dZ2yc

Paul Lamar ...No rotor no motor.

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