This is not about leaning on long cross-country flights (LoP and RoP), but on pattern work.
We are having a bit of an argument here. we have a lycoming 180hp in a vans rv6a. one mag, one elec. ignition.
we fly out of KWHP in SoCal, very dry, typical temperature about 90 degrees Fahrenheit. the runway is 4000' long at 1000' altitude. our airplane has no problem climbing (and outclimbing other airplanes).
our question thus is about what is best for our engine.
A. my son is adamant that the cookbook rule says that we should be full rich on takeoff, climbout, and landing. thus, in the pattern, we barely get off full rich settings. when we fly an hour, we are at full rich about 45 minute of the time.
B. my view was that this seemed not only wasteful but also not so good for the engine (and spark plugs and pocket book). I would fly with half rich only, because the engine to me would seem just as smooth if not smoother than with mixture full rich. I would leave it at half-rich during the entire hour and not even tinker with it.
what's right?
sincerely,
/iaw
We are having a bit of an argument here. we have a lycoming 180hp in a vans rv6a. one mag, one elec. ignition.
we fly out of KWHP in SoCal, very dry, typical temperature about 90 degrees Fahrenheit. the runway is 4000' long at 1000' altitude. our airplane has no problem climbing (and outclimbing other airplanes).
our question thus is about what is best for our engine.
A. my son is adamant that the cookbook rule says that we should be full rich on takeoff, climbout, and landing. thus, in the pattern, we barely get off full rich settings. when we fly an hour, we are at full rich about 45 minute of the time.
B. my view was that this seemed not only wasteful but also not so good for the engine (and spark plugs and pocket book). I would fly with half rich only, because the engine to me would seem just as smooth if not smoother than with mixture full rich. I would leave it at half-rich during the entire hour and not even tinker with it.
what's right?
sincerely,
/iaw