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Peter |
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Two different "Features"
The super strong springs are supplied by Rotax with the engine.
The throttle cable is supplied by Van's. Joe Gores |
Softer Springs
The suoer-strong springs that come with the RV-12 installation were made either for Van's or Rotax by McFarlane Aviation. They have a much softer set available strictly for the '12-- I forget the part number but they'll know what you're talking about. They'll still pull the throttle open in you turn loose of it, but not nearly as fast. They have the same "straight" lengths as the originals and Are "clocked" the same.
Wayne 143WM |
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http://www.mcfarlane-aviation.com/Se...&Search=rotax& |
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McFarlane No. 6534. See: http://www.mykitlog.com/users/displa...=139315&row=14
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I'll stick with the factory spring...Rotax that is. It is only a transition issue because it's different/not dangerous...or even difficult to work with. In fact, if my throttle breaks on take off, my preference would most certainly be the spring that opens the throttle the fastest.
Pete |
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The engines are supplied to RV-12 builders by Van's, configured as built and delivered by Rotax. The installed springs are the standard part that you would get if you ordered springs using teh Rotax Illustrated Parts Cat. The only things specifically done to the engines for installation on an RV-12 are that they get assembled with the water pump inlet housing pre-installed in the correct orientation, and a main water pump housing with outlet pipes pointing directly forward. |
I'm in favour of sticking to the Rotax spec'ed engine, but that doesn't alter the fact that some builders don't have a problem with setting the throttle friction, and others do. My throttle creeps forward at all revs below about 4500 no matter how tight I twist the friction grip.
It's not much fun on a go-around after tightening the throttle as much as possible to keep the revs low for landing. I wish I could change something to make this a little more user-friendly. Cheers...Keith |
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