Michael
Pattern Altitude
This may sound silly, But it has never been properly explained to me. I have been reading manuals on engine performance, and keep seeing examples like "90% LOP" or "120% LOP". If i understand my guage (see attachment) When I lean the mixture untill it is at peak perforance (which I adjust the red needle beforehand to show), Then keep leaning it..the EGT gauge will drop and then I am runnning Lean of peak? If i enrichen the mixture i would be running rich of peak?
When I was taught during my student pilot days, I was told to pull the mixture untill the engine started to run run rough then turn the knob 3 turns. that would be the proper mixture for cruise and high altitude takeoffs.
Now..I may be all wrong about all of this..so help me here...But, If you look at the picture, When I run at peak, the needle is close to the 16. This is done by the previous method of pulling the mixture untill rough, then adding 3 turns.
So i have always set my red needle to just shy of 16.
Some of the reading I am doing would tell me this is way too high for exaust gas temps. Am I doing this all wrong? Or is my Gauge a little squirly? Or is this normal? What procedures do you all use for leaning your mixture?
When I was taught during my student pilot days, I was told to pull the mixture untill the engine started to run run rough then turn the knob 3 turns. that would be the proper mixture for cruise and high altitude takeoffs.
Now..I may be all wrong about all of this..so help me here...But, If you look at the picture, When I run at peak, the needle is close to the 16. This is done by the previous method of pulling the mixture untill rough, then adding 3 turns.
So i have always set my red needle to just shy of 16.
Some of the reading I am doing would tell me this is way too high for exaust gas temps. Am I doing this all wrong? Or is my Gauge a little squirly? Or is this normal? What procedures do you all use for leaning your mixture?