Hi guys,
I have just completed one of the practice CyberExams for CSYA and came across this question:
An engine is running with the mixture fully rich. Progressive leaning to peak EGT will produce:
A. Best economy at peak EGT
B. Best power first, followed by best economy then peak EGT
C. Best economy first, followed by best power then peak EGT
D. Best power at peak EGT
My answer is: A.
My understanding was that best economy occured at peak EGT (or leaner than). However I seemed to have gotten this question wrong and just wanted to make sure my understanding of mixture control wasn't completely flawed!
Anyone care to explain the reasoning behind it?
Cheers,
Carambar