<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt"><div>What Tx are you using? I had a similar problem earlier this summer with my Futaba 9Z. Every flight required a few clicks of down trim, rudder and throttle seemed to be drifting slowly also. But otherwise the radio seemed to be working. I sent it in to Futaba where they replaced some gimbal parts and some ribbon cables, but I think the only thing they did that could have really solved this problem is replace the small Lithium battery that maintains the memory. It is rock solid now.<br><br>If your transmitter has such a battery (9Z and I think the 14MZ also has a battery?), I would get that replaced. If it doesn't have a battery, I would definitely send it in for repair. I would think you would need a lot of exhaust on the servos for oil to get into the pots, but
maybe after 3 seasons.<br><br>Ed<br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><br><div style="font-family: arial,helvetica,sans-serif; font-size: 13px;"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> J N Hiller <jnhiller@earthlink.net><br><b><span style="font-weight: bold;">To:</span></b> NSRCA Mailing List <nsrca-discussion@lists.nsrca.org><br><b><span style="font-weight: bold;">Sent:</span></b> Thursday, August 6, 2009 11:26:40 AM<br><b><span style="font-weight: bold;">Subject:</span></b> [NSRCA-discussion] Trim Change<br></font><br>
Yesterday I was trying to get a few flights between thunder storms and<br>experienced abnormal elevator trim change.<br>I hadn't flown this airplane for about a month but it has been totally<br>reliable and predictable. My first flight was cut short due to repeated<br>fly-overs by a full size helicopter. I got an uninterrupted second flight<br>with only a beep or two of up elevator trim, which isn't excessive in<br>changing weather conditions. The third flight I had to add about three more<br>beeps of up trim and I thought the air was really getting thin. The fourth<br>flight needed about six more beeps of up trim but the airplane acted normal<br>so I continued. After landing I noticed the rudder was offset about 1/4", no<br>wonder the flight was a little screwy.<br>This airplane has a tight, full pull-pull cable system that never changes<br>mechanically. I had a centering offset of about ten beeps on both the<br>elevator and rudder servos and was
changing the idle trim more than normal.<br>You electric guys can laugh now. The fuel tank stopped had loosened and<br>everything in the fuselage was wet probably all the way to the tail post.<br>The inside of the airplane is a mess and I will be flying the other airplane<br>in Redmond OR this weekend.<br>The receiver had a little oil on one corner of the case but appears to be<br>dry inside and doesn't even smell like fuel. I suspect the centering change<br>resulted from fuel getting into the servo pots. I'm reluctant to get into<br>them that deep and will probably just scrap them. After three seasons they<br>were due for replacement anyway.<br>Jim Hiller<br><br>_______________________________________________<br>NSRCA-discussion mailing list<br><a ymailto="mailto:NSRCA-discussion@lists.nsrca.org" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><span><a target="_blank"
href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></span><br></div></div></div></body></html>