What would be the week link in the head if 680 blades are used?
I already have lengthened the tail boom and have been running an os 70 with 680 blades at 1800 rpm without a problem. I do loops flips and rolls and no hard 3d. The bolt that holds the blade grips on is the same size as a raptor 90. I have taken the head apart several times to check for premature wear and have not found anything abnormal. Has anyone else tried this and had a failure?
I have read that others have tried it. I only fly this by myself on my own 50 acres.
The only way to not crash is up