Mag Checks - A cure for rough running.

[MyData]

Thanks for all the very useful responses. Very informative. I'll have further discussions with the CFI next time I'm at the school.


Something that got me thinking further on this (and I guess the answer is in my text books). If the engine runs roughly on only one mag why isn't this the case when both are selected - it is as though the rough running can only be detected when mags are selected independently. And if a single mag is running roughly, and on both things are fine, what amount of total power is available at take off? I would expect less than normally expected due to one of the mag circuits being less than perfect.