>>> How is the slide throttle project doing? Did Doc find a machine
    shop
     >>> to take it on? Jerry

     >> Tooling and fixtures are being made as I write this. I have ordered
    two
     >> prototypes. The machinist says he expects the finish to be 12
    microinches
     >> or
     >> less. I am planning on having them hard anodized as the estimated
    cost is
     >> minimal and the corrosion resistance of value, especially if mogas
    users
     >> get
     >> a batch with alcohol in it. If someone wants bare aluminum that can
    be an
     >> option.
     >>
     >> There will be two models, one short and one long. The throttle
     >> characteristics are identical, the only difference is the throttle
    cable
     >> mechanical attachments. The short version is for the A-750
    cable, the

     >> long
     >> for the A-1760 as listed in the Aircraft Spruce catalog. I will
    discuss
     >> the
     >> attachment details and relative merits a at a later time.
     >>
     >> My recovery from hip replacement surgery is going much better than

I
     >> expected, less than 3 weeks post-op. I plan to visit the machine
    shop

     >> later
     >> this week for an update. I will update the newsletter after that
    visit. I
     >> also plan on setting up a web site.
     >>
     >> I hope to return to work on the RV9-A in a few weeks.
     >>
     >> Doc Custer
     >> Retired Software Engineer and sometime Audiologist
     >
     > Are there any plans for making a model to fit the 20B?
     >
     > Robin

    No current plans, but I would be willing to do it given enough interest.
    Anybody besides Robin interested? Is the port spacing for the third
    rotor the same as for a two rotor?

    UPDATE: I visited the machinist this noon. He is half done doing the NC
    programs. I forgot to ask about the tooling/fixtures. He said he expects
    **some** of the parts to be machined by Monday. He found a shop to do
    the
    PFTE (Teflon is a trade name) as they have the experience and would
    probably
    be cheaper. Also waiting on materials.

    Doc Custer
    Retired Software Engineer and sometime Audiologist

    Doc,
    Yes, I would definitely be interested in a 20B slide throttle. I know
    of one other person that has expressed an interest.

    Mark Steitle
    Lancair ES/20B

I'd be interested in the slide throttle for the 20B.  My plan is to use
a 20B for a BD-4C.  Finding the engine might take some time though as I
have not started the project yet.

Allen Slominski
Houston, TX

I have put you on the list, Allen.

I guess I will have to talk to the machinist about flexible tooling, and
fixtures. NC programs will have to be modified too.

Doc Custer
Retired Software Engineer and sometime Audiologist


I am also interested in a slide throttle for a 20b as an IO-540 replacement
Norm Farb
Independence, OR


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.