I am doing a study of throttle openings vs. control cable travel. I hope
to demonstrate that Paul's tear drop slide throttle, or a version
thereof, will have an acceptable low throttle performance. I need a 3D
model of a throttle body so I can get Rhino to compute the open area vs.
control cable travel. I could start from scratch but it seems to me that
it would be preferable to use a real world throttle body with
butterfly as opposed to one I invented ad hoc. A 2 inch diameter TB
would be ideal but a 50mm would probably be close enough to allow me to
scale the results to 2 inches.

I have the data in hand for two versions of the slide throttle. All I
need now is the TB.

I intend to publish the results on this newsletter.

Doc Custer
Retired software engineer and sometime Audiologist
Building RV9-A. Fuselage

The tear drop can be replaced by any shape. The shape can be
tailored to get any opening area as a function of throttle
cable travel. However... due to entirely different turbulence
patterns the two systems cannot be strictly compared on
opening area alone.

Paul Lamar

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