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OK NSRCA list, got a weird one to run by the Pattern hive mind to see if anyone has any ideas. My plane has two FlexReg PLR5 Tech-Aero Voltage Regulators and batteries for redundancy. My typical flying session pre-flight checkout involves turning one on at
a time and sweeping all surfaces. Today, the rudder swept back and forth after I stopped a similar command from the transmitter on the first regulator I turned on. Maybe my leads were not fully seated??? I unplugged and re-plug both regulator leads at
the receiver and the problem went away. Today, when I got home, I decided to replace the regulator causing the issue with one from a backup plane and did my sweep checks. The following was always performed with only one regulator plugging in at a time and
without the wings on.....</div>
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<li style="list-style-type: "1. ";"><span>With the replacement regulator (R1) plugged into channel 8, the rudder kept sweeping back and forth un-commanded (after I stopped). The elevator was fine. </span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "2. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
Moving from channel 8 to 7 (R1), t<span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted1">he rudder kept sweeping back and forth<span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted4"><span class="ContentPasted4"> </span>un-commanded</span>.
The elevator was fine.</span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "3. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted1">Plugging the same battery (B1) into the other regulator (R0) that has always been in the plane into channel 8, both rudder and elevator we fine.</span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "4. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted2">Moving from channel 8 to 7 (R0),
</span><span style="display: inline !important; background-color: rgb(255, 255, 255);">both rudder and elevator we fine</span><span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">.</span><br>
</li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "5. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">I repeated steps 1 & 2, <span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3">the
rudder kept sweeping back and forth. The elevator was fine.</span></span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "6. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3">Grabbing the OTHER regulator
(R2) from the backup plane and repeating steps 1-4 above yielded the same results. </span></span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "7. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3">I removed the regulator
(R2), leaving the original (R0) and the original backup (R1) in the plane</span></span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "8. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3">Hooking up a second battery
(B2) and cycling back and forth between the two regulators, once switch at a time, there we no issues.</span></span></li><li style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; list-style-type: "9. "; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3">There were also no issues
with both packs on at the same time</span></span></li></ol>
<div>Based on the above, the problem did not follow anything in particular.</div>
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<div>B1 + R1 + 7 = <span style="color: rgb(237, 92, 87);"><b>X</b></span> (rudder sweep)</div>
<div><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted5">B1 + R1 + 8 =
</span><span style="display: inline !important; color: rgb(237, 92, 87); background-color: rgb(255, 255, 255);" class="ContentPasted5"><b>X</b></span><br>
</div>
<div><span class="ContentPasted1 ContentPasted2" style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; margin: 0px; display: inline !important; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted6">B1
+ R0 + 7 = </span><span style="display: inline !important; color: rgb(23, 78, 134); background-color: rgb(255, 255, 255);" class="ContentPasted6"><b>Y</b></span><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted6">
(rudder fine)</span><br>
</span></span></div>
</div>
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<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted7">B1
+ R0 + 8 = </span><span style="display: inline !important; color: rgb(23, 78, 134); background-color: rgb(255, 255, 255);" class="ContentPasted7"><b>Y</b></span><br>
</span></span></div>
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<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted7"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted8">B1
+ R2 + 7 = <b style="color: rgb(237, 92, 87);" class="ContentPasted15">X</b></span><br>
</span></span></span></div>
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<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted7"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted8"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted9">B1
+ R2 + 8 = <b style="color: rgb(237, 92, 87);" class="ContentPasted16">X</b></span><br>
</span></span></span></span></div>
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<span class="ContentPasted1 ContentPasted2" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted3"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted7"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted8"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted9"><br>
</span></span></span></span></span></div>
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<div class="ContentPasted0" style="font-size:12pt;margin:0px"><span style="margin:0px" class="ContentPasted10">B1 + R1 + 7 OR <span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted11">B2 + R0 + 8 =
</span><span style="display: inline !important; color: rgb(23, 78, 134); background-color: rgb(255, 255, 255);" class="ContentPasted11"><b>Y</b></span></span></div>
<div class="ContentPasted0" style="font-size:12pt;margin:0px">
<div style="margin:0px"><span style="display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted12">B1 + R1 + 8 OR
</span><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">B2 + R0 + 7 =
</span><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; color: rgb(23, 78, 134); background-color: rgb(255, 255, 255);"><b>Y</b></span><br>
</div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">B1
+ R1 + 8 AND<span class="ContentPasted13"> </span></span><span class="ContentPasted11 ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">B2 + R0 + 7 =
</span><span class="ContentPasted11 ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; color: rgb(23, 78, 134); background-color: rgb(255, 255, 255);"><b>Y</b></span><br>
</span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><br>
</span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">Thoughts??? </span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><br>
</span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13 ContentPasted14" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">Since
this is a Futaba R7008SB receiver, I could ditch the regulators and just go straight into the receiver (did not try that yet).....</span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13 ContentPasted14" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><br>
</span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13 ContentPasted14" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">Regards,</span></span></div>
<div style="margin:0px"><span class="ContentPasted11 ContentPasted12" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);"><span class="ContentPasted11 ContentPasted12 ContentPasted13 ContentPasted14" style="margin: 0px; display: inline !important; background-color: rgb(255, 255, 255);">Mike
C</span></span></div>
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