Testing the engine with a 2-bladed prop to check out the vibrations it was producing with the other prop.
Possible cause was theh higher loading the 3-bladed prop imposed on the engine amplified the vibrations felt between 2600~3100rpm.
Top rpm with this APC prop was a steady 6900 rpm, idle a great 1800rpm. The engine has now around 35 minutes of run time.
dude u almost minced the dog
meathead005 4 years ago 4