Hi All,
on my RV7 i installed a standard Hartzell 72" aluminum BA CS prop. the engine is an IO-375 low compression from aerosport which is kinda exotic. because of that i had an hard time to figure out the RPM restrictions for continuous cruise power with this engine/propeller combo. aerosport told me that the io375 has basically the same restrictions as the 360 but they can't say for sure.
i like more sedate power settings during cruise so the local A/P did the dynamic prop balancing at 2200 RPM. i don't recall the reached value in inches/second but he said that he never managed to get it that low before and the vibrations seem to me low at 2200.
info i have is that for a 360/hartzell continuous operation between 2000 and 2300 should be avoided. does that still apply after dynamic prop balancing in that RPM range and you're happy with vibration?
Kay
on my RV7 i installed a standard Hartzell 72" aluminum BA CS prop. the engine is an IO-375 low compression from aerosport which is kinda exotic. because of that i had an hard time to figure out the RPM restrictions for continuous cruise power with this engine/propeller combo. aerosport told me that the io375 has basically the same restrictions as the 360 but they can't say for sure.
i like more sedate power settings during cruise so the local A/P did the dynamic prop balancing at 2200 RPM. i don't recall the reached value in inches/second but he said that he never managed to get it that low before and the vibrations seem to me low at 2200.
info i have is that for a 360/hartzell continuous operation between 2000 and 2300 should be avoided. does that still apply after dynamic prop balancing in that RPM range and you're happy with vibration?
Kay
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