Cessna 152 (proper) air/fuel ratio...
"dtvonly" wrote in message ...
Hi. I am a student pilot and have always done "proper" leaning per
flight altitude. I should have asked this a long time ago
but...anyway...when using the mixture control to get "optimum" RPM at
altitude, what is the "optimum" air/fuel ratio ? 3:1, 4:1, etc...
Thank you.
dtvonly
Unless you have a device that reads out your air/fuel ratio you should
probably just use the old method. At cruise altitude with power/speed
stable, just lean out the mixture control until the engine runs a little
rough and then push it back in about an inch.
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