KRnetters,
Flying today with the Heritage Flight Museum in morning taught me another
valuable lesson about how sensitive the Aerocarb carburetor is. It was 20
degrees colder than it has been. This combined with full power high speed runs
down the runway as part of the show caused the engine to go lean and drop power
on a climbout. That was a bit of a surprise, but should not have been
considering the RPM the engine was significantly higher than I normally fly
(increased CFPM), it was colder than the carb needle was set at (denser air
charge), and the problem only became apparent on the climbout (sudden increase
in load to the engine forcing the leanness to become apparent).
1/2 turn more rich is in order as Fall arrives. What a great real-world
reminder for me to not forget to do this as it cools off.
iMs,
Zip
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