LatitudeDancer
Well-Known Member
Yea, except I've had it happen in fuel injected planes...
The only reason you enrichen the mixture in the descent is because it will be too lean when you lose a few thousand feet if you keep it at the same setting. You should enrichen it some, but not full rich.
I hated the instructors from pilot mills I've flown with that go full rich ("standardization" I'm sure)...engines don't like that most of the time.
EXACTLY.
this was also the SOP at UND... AND ITS JUST NOT CORRECT.
slamming in the mixture when you start down is a) waste of fuel and b) not a correct mixture for the engine. welcome to plug fouling land!!
keep an eye on the EGT and richen the mixture a little at a time on the way down when you notice/feel it getting too lean/hot.
piloting for dummies = dummy pilots.
I've flown planes that were very touchy when it came to fouling plugs and in almost all the cases they had other issues like an improperly set idle mixture control.
Two: Don't put the mixture in on a large engine sometime. Plenty of them laying 1-2 miles short of the runway from fuel starvation when there are still tens of gallons in the wings. Maybe I just flew around Vikings, Bonanzas, and Navajo's too much.