Originally Posted by
WorkingHard
I thought it interesting about the advice to not fly the aircraft with a faulty gauge. I am not sure I agree in this particular instance as it is only a gauge and if all other indications are correct then continue. My ears and eyes will suffice in place of a faulty gauge at least on a temporary basis but of course that is also dependant on which instrument is at fault.
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You are the PIC so of course it is your decision but some points to consider
Without a working MP guage you
do not have
1) A direct indication that the engine is developing full power on takeoff
2) Indication of the development of carb ice
3) A valid Certificate of Airworthiness as the MP will be a required instrument
4) Valid insurance as a result of point 3
5) abitility to conform to any MP vs RPM restrictions