Ron Iaconis
12-14-2006, 05:47 AM
I just finished a protractor using Poly-carbon plastic ,it's 3/16 thick and I used a small ball bearing( 3/16 id and 1/2 od) as the pivot
I got tired of trying to guess what degrees my blades were at using the old Sears Protractor,,,,it has graduations that are so close I cannot truly know exactly what my settings are.
The graduations on my Home Made one are 3/16 of an inch and makes for easier adjustment of setting collective of my blades.
As it is I have Bensen Blades with a 34 inch hub bar,,,,and the blades are showing 2 degrees at 50 percent station,,,,and 2 & 1/2 degrees at 100 percent station.
I am able to hand start them and they spin up quite easily. I was always under the thought that anything over 1 & 1/2 degrees ,,,,would be very difficult to spin up,,,,but I am finding that to be not the case. Any suggestions,,,,,or recommendations????????
I got tired of trying to guess what degrees my blades were at using the old Sears Protractor,,,,it has graduations that are so close I cannot truly know exactly what my settings are.
The graduations on my Home Made one are 3/16 of an inch and makes for easier adjustment of setting collective of my blades.
As it is I have Bensen Blades with a 34 inch hub bar,,,,and the blades are showing 2 degrees at 50 percent station,,,,and 2 & 1/2 degrees at 100 percent station.
I am able to hand start them and they spin up quite easily. I was always under the thought that anything over 1 & 1/2 degrees ,,,,would be very difficult to spin up,,,,but I am finding that to be not the case. Any suggestions,,,,,or recommendations????????