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Old 09-29-2010 | 08:34 PM
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tiltrotor22
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Joined: Jun 2010
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From: Amarillo, TX
Default Gyro not commanding tail servo!

<div style="margin: 0in 0in 0pt">Looking for a solution to a problem I am having.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">I currently fly a Blade 400 with a 440 motor, 45A esc, 3 HS-56mgs on cyclic, and a hs-5065mg on the tail.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">I was flying all afternoon and everything was going great.I decided to take a break for about 15 minutes and placed the 400 in the trunk of my car.</div><div style="margin: 0in 0in 0pt">After 15 minutes I took it out and plugged the battery in.I did a control check and everything was working fine.I spooled up and the helicopter started spinning like</div><div style="margin: 0in 0in 0pt">Crazy.I reset the helicopter by unplugging and plugging the battery back in.I got the usual start up tone and got my head lock light on steady on the gyro.</div><div style="margin: 0in 0in 0pt">I spooled up again and it spun again.</div><div style="margin: 0in 0in 0pt">If I spooled up slow enough I was able to hold the heading with no rudder inputs.As soon as I pushed the rudder in any direction the helicopter spun as if it had no head hold</div><div style="margin: 0in 0in 0pt">Capability.</div><div style="margin: 0in 0in 0pt">I put on throttle hold and checked the controls again.With rudder input I could move the tail fully in both directions.When I selected rate mode the tail would center like normal.</div><div style="margin: 0in 0in 0pt">I decided to remove the stock gyro and install a Futaba 401.</div><div style="margin: 0in 0in 0pt">After installation I check everything again.I spooled up and the helicopter started spinning again.I decided to pick up the helicopter and rock it back and forth to check if the servo was moving to the gyros command.It was not.</div><div style="margin: 0in 0in 0pt">Two separate gyros both showing head lock, a servo that moves with stick input but doesn&rsquo;t move with gyro inputs!What could be wrong?Can a crapped out servo still work with stick inputs but not accept inputs from the gyro?</div><div style="margin: 0in 0in 0pt">Has anyone else had this problem or have a suggestion?I am getting frusterated.</div><div style="margin: 0in 0in 0pt">I hope I included all the details, if someone would like to help me solve this and needs more info please let me know.</div><div style="margin: 0in 0in 0pt"></div><div style="margin: 0in 0in 0pt">Im ready to get back in the air!!!</div>