Swash hitting radius pins.

[furyevo]

Ok, I was just pre flighting my Stratus, and I noticed a problem. When I was at full positive collective, and pulled full back on the cyclic, the radius pins were hitting the inner swashplate. When I checked cyclic pitch, I have 4 degrees foreward, but 6 degrees back. All of my control rods are set as per the manual, servo horns are 90 degrees at 0 pitch, bellcranks are 90 degrees also. Swash AFR is 50 on all 3 options, subtrim is 0 on all, endpoints are 100 on all. What am I missing here?

[DavidH]

Screw in the three links from the bell cranks to the swash plate a few turns each. Then re-adjust the links from the swash plate up.
Yes you may have the links length according to the instructions. But it only takes one or two turns on each link to make a difference.
Make sure the bell cranks are level at mid stick. Then shorten the links to the swash a few turns each.

David

[furyevo]

That was my idea, but I wanted to make sure. Thanks.

[furyevo]

:shock: Wow, 2 turns in on those links, adjusted the head rods, and I get -10 to +10, with the pitch curve at 0,25,50,75,100. Never saw that before. Great way to start the flying season, with something finally going right for me. :mrgreen:

[DavidH]

Glad you got it worked out. I always measure the links with calipers also when I set up the model. Sometimes it all works out perfect and only need a half turn or so on a link or two when initially flying the model. Then build another model and have the same measurement between the links ( exposed rod) and end having the problem you ran into. I don't know if is because the shank of the ball links might be slightly different from batch to batch. But the absolute best way to match lengths is to measure from ball to ball that the link would snap on. I have my calipers set up where I can snap the linkage onto them and measure. I can duplicate linkage between models exactly.

David