Subject: F1 Rocket engine mount
From: Rotary Engine
Date: 6/4/2008, 7:13 PM
To: AAA Put this in the To box


    Paul,
    What would you recommend for a conversion from the 540 engine / gear
    mount to a 2 or 3 rotor turboed mount for the F1 Rocket?  Possibly use a
    secondary mount ( ala Tracy Crooks original RV4 )  although a little
    heavier?
    The mount has already been drilled and is presently on the bird and
    waiting for a 540 or the switch to rotary.

    Also, would it be possible to have the radiator and oil cooler EXITing
    air out a left side duct with the turbo heat and exhaust for
    better efficiency?  (Fuel lines at the bottom center of firewall.)

    Thanks,
    David Deffner
    ps. I enjoy my rotary time on the ground in SCCA and NASA events.


    Tracy has moved away from that type of mount as it is more expensive
    to build and heavier than a simple mount that uses the firewall hard
    points.
    If you send me a sketch with dims of the firewall hard points I will
    design a mount for
    you. Also send the thrust line height dimensions and off set angles
    if any. I will also need to length of the cowl from
    firewall to prop flange opening. Pictures would also help.


    It is possible to let the cooling air out the left side but it is
    not as efficient
    as letting it out the bottom or the right side. Obstruction to the
    exit air from
    the heat exchangers is not a good thing. That is not to say louvers
    on the left side are not a good idea to cool the turbo. They are.

    Paul Lamar ...No rotor no motor.

Paul,
You're very gracious and I will take you up on your designing a mount
before you change your mind.  Until I have a chance to get you all those
dimensions, more  pics than you probably want to see are available on
Vince Fraziers site www.vincesrocket.com
<http://www.vincesrocket.com/>   and
F1 Rocket www.teamaircraft.com <http://www.teamaircraft.com/>
Do you have a fax number I can send the sketch and dims to?  Some of
that Hi Teck stuf hasn't made to some parts of Texas yet.
V. Fraziers is a Harmon Rocket II with some of the F1 parts such as the
cowl.

Space is about the same as Tracy C. RV8 3 rotor, but with the gear
sockets crowded in there.

On building up a 3 rotor, does a true 3 housing have two or four exhaust
port studs?  And is there enuf material to drill and helicoil four studs
per port on a 2 rotor housing?
I don't like exhaust leaks!!  I recall some of the racing 3 and 4 rotor
motors having some trouble with exhaust leaks?
Thanks again,
David

No fax but you can mail it to me at:

830 East Santa Maria St.
Suite 303  <<<<<<<<<<< very important
Santa Paula
California
93060


All three rotor engines had the 2 stud arrangement just like the 2 rotor.
In fact they used the same rotor housings I think.

Yes there is enough meat to drill and helicoil.

What we do with the landing gear type motor mounts is cut away the
tubes we don't use and keep the rest. Cheaper and quicker.

 Here are some pictures of a mount that Jerry Hey built.

Paul Lamar ...No rotor no motor.

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