qb7ops
10-11-2006, 02:55 PM
My Trex SE CF decided to take a suicide dive (on its own accord of course) leaving me to replace a few parts. Nothing exceptional; the spindle, main rotors, flybar, and boom. When rebuilding I checked to make sure nothing else was bent or broken. I follow the Finless videos for my rebuilds; particularly "CCPM Part 2".
The swashplate (microheli) is balanced and flat at 50% throttle. At full positive throttle the block sits just a hair below the head. At full negative is doesn't hit the collar or frame.
With the flybar level:
1. The control levers are level and even (ball and opposite screw)
2. Links from control lever arms to the seesaw are both same length.
3. The seesaw mixer arms are level with the flybar cage.
4. The blade grip links have been slightly adjusted to get o% pitch at center throttle.
With respect to the TX (Futaba T9CHP Super) endpoints at 100% both sides, all trim is 0; swash AFR settings all at 50%; sub trims have been adjusted for servo centering. For setup, the TX throttle and pitch curve settings are at default (0 25 50 75 100).
With the exception of checking CCPM interaction, I have followed the CCMP Part 2 video as best possible. I also reviewed the other applicable videos in case something else might apply.
At 50% throttle the pitch on both main rotors was 0%. But I ended up with -12 pitch at full negative and +10 pitch at full positive throttle. I started from scratch 3 times re-checking links, etc, and still cannot get an even 10/10 or 11/11 rotor pitch at both negative and positive; still -12/+10. Adjusting the Swash AFR pitch did not help at this point in setup.
Excuse the long-winded explanation of my problem, but I wanted to make sure whoever read this understood what I did, or did not do.
Anyone suggest a simple correction, or something I may have overlooked?
The swashplate (microheli) is balanced and flat at 50% throttle. At full positive throttle the block sits just a hair below the head. At full negative is doesn't hit the collar or frame.
With the flybar level:
1. The control levers are level and even (ball and opposite screw)
2. Links from control lever arms to the seesaw are both same length.
3. The seesaw mixer arms are level with the flybar cage.
4. The blade grip links have been slightly adjusted to get o% pitch at center throttle.
With respect to the TX (Futaba T9CHP Super) endpoints at 100% both sides, all trim is 0; swash AFR settings all at 50%; sub trims have been adjusted for servo centering. For setup, the TX throttle and pitch curve settings are at default (0 25 50 75 100).
With the exception of checking CCPM interaction, I have followed the CCMP Part 2 video as best possible. I also reviewed the other applicable videos in case something else might apply.
At 50% throttle the pitch on both main rotors was 0%. But I ended up with -12 pitch at full negative and +10 pitch at full positive throttle. I started from scratch 3 times re-checking links, etc, and still cannot get an even 10/10 or 11/11 rotor pitch at both negative and positive; still -12/+10. Adjusting the Swash AFR pitch did not help at this point in setup.
Excuse the long-winded explanation of my problem, but I wanted to make sure whoever read this understood what I did, or did not do.
Anyone suggest a simple correction, or something I may have overlooked?