n262ln
Active Member
Up until recently all my maneuvers in the Acroduster were done at entry speeds of 160 mph or less. Recently I pushed over to 170 mph in an attempt to complete a 360 deg vertical roll. (If you want some entertainment and see what happens when you hold a vertical too long in the Acroduster take a look at .)
Next preflight I noticed that the prop had contacted the spinner backplate and had quarter inch long cuts into each blade/paint about 1/32 inch deep near the trailing edge. Hub was upgraded to B version about two years ago and the blades are FC7666A-2. I assume the blades opened up during the 170 mph dive beyond the backplate clearance limit.
Questions: Are the blades ruined? Is the fix to cut the backplate to accommodate the blade movement? If so, how do I statically get the blades to their stops so see how much clearance I need?
Next preflight I noticed that the prop had contacted the spinner backplate and had quarter inch long cuts into each blade/paint about 1/32 inch deep near the trailing edge. Hub was upgraded to B version about two years ago and the blades are FC7666A-2. I assume the blades opened up during the 170 mph dive beyond the backplate clearance limit.
Questions: Are the blades ruined? Is the fix to cut the backplate to accommodate the blade movement? If so, how do I statically get the blades to their stops so see how much clearance I need?
