View Full Version : Brock Prerotator
02-08-2004, 06:05 AM
So John S. Whats the story on your P.R. ? Both of my AC machines require a little forward stick before you can give full right stick. Just wondering what Brock told you.
02-08-2004, 07:31 AM
Brock passed the buck to Dick Winderlinche. Steve has sent my flexable shaft back to Dick to so that it can be shortened. Steve thinks that if we elliminate the bow, it won't bind at the mast.
We'll work it out, but have been delayed a week or so. Steve has gone to Fl. all this week, and if things work out, when he gets back, the shaft we be here waiting on us. We will know if it works then.
Also, the next big question is in regards to the trim spring. The way the P.R. is mounted we had to remove it a together. Won't know untill we fly as to whether or not we'll need it. If we do, we will have to do some creative engineering.
02-08-2004, 10:28 AM
John, I have the same set up as you, as far as the rotor head. When it is on the ground it has alot of back pressure on the stick. But Rick flew mine and said it seems to go away once it gets into the air. We still needed a light trim spring.
The original Brock style pre-rotator uses a pully system mounted on top of the engine, with a square drive slipper type drive shaft (like a car steering column) that drives the pre-rotator.
So they might not have really passed the buck, but still it would be nice to know something for sure.
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