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At 08:43 PM 5/20/2006, Tandy Allen wrote:
a knowledgeable A&P commented that there were only three holes in
the mixture control - a full rich, a somewhat smaller one and the
smallest one. No continuous moderation of the mixture control.
This is flat out wrong! (So much for "knowledgeable...) There are 4
or 5 small holes that alternately align with a larger hole in the
stationary plate. The holes are sized and spaced so that as one hole
passes out of register another is passing in. They do in fact
provide a continuous reduction in pressure on the float chamber,
hence a continuous moderation of the mixture.
What does the CF stand for? Is this a climb or cruise prop?
CF is a designator of the casting from which the prop was made. In
this case it indicates that you have an elliptical tip prop for the
C75-85-90 series. As others have stated, it is considered a mild
climb prop for the C85/Ercoupe combination.
John Cooper, A&P
Skyport Services
PO Box 249
4996 Delaware Tnpk
Rensselaerville, NY 12147
518 797-3064
Fax 518 797-3865
www.skyportservices.net
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