Wood props should always be re torqued after the first flight when the prop is first installed. It should also be re checked each hour for the first few hours of operation. New fiber lock nuts should also be used. I always torque my prop to 10 ft./lbs. If I've flow a lot and haven't been keeping up on the inspections, I've found the torque values to be as low as 4 ft/lbs.
-Joe Beyer >Something I never really hear anyone talking about on KRs is torque values on wooden props. Depending on the moisture in >the air or the lack there of the prop thickness can change. In the Rutan EZE world, regular torque checking was a >requirement. There were cases of flopping props and I also thing there may have been some planes damaged or forced onto >the ground because of loosening caused by atmospheric changes over time. >I am curious if any of you ever have to re-torque, or if any of you ever check the torque values of your wooden props. >One more question would be, what is your torque values on your props. >Thanks >Larry H.
