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Jeff wrote:
maybe a stupid question, but if its going to quit on you when you go full rich on landing, then dont it also risk the chance of quitting if you go full rich on a go around? unless its just the high power that keeps it running and idle is what kills it. Your guesstimation is correct! The higher power can deal with the enrichened mixture, and your balked landing (go around) will succeed. Notice that I said below to increase the power, then the mixtu Of course, if you do a balked landing, you MUST push the mixture full in after you increase the power for the go around. Best regards, Jer/ wrote: Yes. The mixture was too rich. This is a common problem with big-bore engines when operated above 3000 MSL. What we teach at Colorado Pilots Association is to set the mixture to 15 GPH as you enter the pattern at (near) cruise power. That way the engine continues to run on the ground. :-) Of course, if you do a balked landing, you MUST push the mixture full in after you increase the power for the go around. Barry Klein wrote: We took a newer 182 turbo to a 7000' elevation airport yesterday and the engine quit at the end of the landing roll. I'm sure the mixture was way too rich. It restarted without incident, glad we were on the ground! We had the mixture set about 100 deg rich of peak TIT for cruise at 9500. How should we have found the correct mixture setting for power-off final approach, when the turbo is basically adding no boost and we are at high density altitude? This is not addressed in the POH. It does say full rich on takeoff regardless of airport elevation. Later that day, when taxiing for takeoff, we set 1200 rpm and leaned for peak rpm, mixture knob was out 1.5-2 inches to achieve this. When we returned home to 800' elevation, we checked the idle speed at full rich, it was about 500 rpm, is this too low? Thanks, Barry Best regards, Jer/ "Flight instruction and mountain flying are my vocation!" Eberhard -- Jer/ (Slash) Eberhard, Mountain Flying Aviation, LTD, Ft Collins, CO CELL 970 231-6325 EMAIL jer'at'frii.com WEB http://www.frii.net/~jer C-206 N9513G, CFII Airplane&Glider, FAA-DEN Aviation Safety Counselor CAP-CO Mission&Aircraft CheckPilot, BM218 HAM N0FZD, 197 Young Eagles! |
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