Frank AbelbeckYesterday I noticed both the Tecnam manual and Lycoming's manual specify the IO-360-M1A "Economy Cruise" operation (2350 rpm) with "60R rated".
60R? 🤔 Did the author (assuming QWERTY) wanted to hit shift+5 for "%" and the finger fell short on the "R"? Or is this a term technique I missed in school?
