In article , Kyler Laird
wrote:

ah - I think I may have been confused and thus confused others. I read
"mag drop" and assumed you meant "RPM drop" when checking mags during
a run-up.

I was using the same definition. I'm trying to figure out how the R-1
can say "here's the drop in RPM due to one mag not firing" without
the operator figuring out that one mag isn't firing.

When you press both the flt time and tach buttons, it (temporarily)
sets the RPM LCD display to 0 - thus prepared to show RPM drop during
your mag check during run-up (as well as the check of carb heat).

--
Bob Noel