Paul, have you or anyone in the audience had/have dealings or opinions on quality/reliability/service for Promaz in Australia? I am considering them to build 2 x 13b engines. is the o-ring method for sealing the pp intake tube to rotary housing the best way?-jw


    James Whitehurst

    No I have not had an dealings with them. I have exchanged several emails with the
    owner. He apparently knows very little about aircraft so it is up to you
    to be specific about  the specs. Make sure he uses  Ianette ceramic apex seals,
    a GT40 turbo charger, p-ports, a dry sump oil system and a blow off valve on the intake manifold.

    That is basically the TTC engine. That I know is reliable at the higher power levels.
    After you get the engines I can help you tune and install them.

    We have several people on here living in Australia that may no more about him.

    Also If  were you I would make a trip down there to Melbourne and talk to them.
    While you are there you can visit Neil Unger in Parkes NSW and talk to him about his Rotary
    powered Glasstar. There is also an air show in October at Narromine NSW
    not far north of Neil where you may meet other rotary powered aircraft builders..

    Paul Lamar

Paul, thanks for the info. is the o-ring the best choice for the marriage of
ntake to rotor housing? aircraft use?

James Whitehurst


Yes.

Follow this on youtube

https://www.youtube.com/watch?v=NKJ00JsnS8A

Then do this like the picture attached.


There is another guy in socal that can build the engines using racing beat
aluminum end housings. Possible less cost than the Oz end housings.
I have a call into him so more info later.

Paul Lamar

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