Mixture control bottoms-out against the firewall?
"Mark Hansen" wrote in message
...
I have a maintenance question.
I read somewhere that the mixture control should not bottom-out against
the firewall when full rich, as the pilot would not be able to tell if
the full-rich position was achieved, or if the knob just hit the firewall
stop.
However, I'm wondering if this is just a rule of thumb, or if there is
an actual FAR which dictates it, and which FAR that is?
While it's probably not a regulation, most service manuals specify that both
throttle and mixture knobs have a certain amount of "springback" instead of
the knob contacting the panel; the Piper Cherokee manual, for instance,
specifies 1/16" to 1/8" springback.
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