Well, Mr. Killington, we need information. How long did the pin work before it failed? How long has the rubber insert worked before it fell out last year?
My wrench and I have known each other since 1983 when I took it out of my Porsche 911's tool bag and kept it. I installed a wrap of electrical tape between the rubber insert and the wall of the socket just this spring when it dropped a plug for the very first time. It is now working well once again. The roll pin? Fine.
116 foot blade tip rotates from the exact center of the generator hub . . . so actual circumference is about 125 feet
785 feet circumference X 21 rpm = 19,625 feet per minute = 1, 177,500 feet per hour = 180 mph.
Colin