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shay · 12-17-2011, 04:05 AM

My heli hes been suffering from shakes which seems to originate from a wiring issue. I'm trying to find the source but with no luck so far.
Have you got any tips regarding finding the heart of this problem?

Thanks, Shay.

bad007 · 12-17-2011, 05:28 PM

Pictures? Exactly what do you mean, tail wag, head has a wobble, skids shaking. Started after crash rebuild?

shay · 12-17-2011, 06:34 PM

It shakes like there is a glitch mainly at the swash

bad007 · 12-17-2011, 09:52 PM

More info, FB, FBL, whats powering it, what TX/RX.

dunkonu23 · 12-17-2011, 10:52 PM

Please provide your headspeed, as well.

Scott

shay · 12-18-2011, 02:38 AM

fb bird
8717 cyclic
Corona 2.4 Rx futaba 10C with corona 2.4 module
Y.S. 56
I believe the head speed doesn't matter(nor i know it) it happens in normal and in IU
the tail stays firm during all times

dunkonu23 · 12-19-2011, 06:05 PM

The reason I asked about headspeed is a condition called low headspeed wobble. It happens on mine in normal and idle 1. My headspeeds are 1750, 1950, 2050. At 2050, it's gone. It happens because damping is too hard at lower headspeeds and that allows direct translation when the lagging blade is providing no lift. So, if it's not that, I'm happy!

If you think its your wiring, pull your wiring and check it. Is the wobble intermittent or does it happen all the time?

Scott

shay · 12-19-2011, 06:16 PM

It happens occasionally not even every flight

PS one wire o the regulator was loose so i replugged it i think it solved the problam all i have to do now is wait for Friday...

dunkonu23 · 12-20-2011, 04:24 AM

If that's the fix, you may want to put Goop or Shoe Goo over the connectors to hold them in place.

Scott

im4711 · 12-20-2011, 08:15 PM

stupid question but could you check if the motor mount is really tight? if using the longer scows it might have a unit play and cause vibrations. In addition check the same on the bottom plate mount. May not be your issue but have seen it.

bad007 · 12-21-2011, 08:55 PM

Intermitent. Sure could have bween a loose connection. Make sure the connectors fit tight.
I run a bead of E6000 across the top of the servo connecotors at well as around the wires where they go into the plugs for the RXs so vibes don't eventually cause problems.

12-17-2011, 04:05 AM	#1 (permalink)
shay Registered Users Join Date: Jul 2009	She got the shakes! My heli hes been suffering from shakes which seems to originate from a wiring issue. I'm trying to find the source but with no luck so far. Have you got any tips regarding finding the heart of this problem? Thanks, Shay. __________________ Shay.S. Futaba 10CHP Outrage Velocity 50(She's HERE!)

12-17-2011, 06:34 PM	#3 (permalink)
shay Registered Users Thread Starter Join Date: Jul 2009	It shakes like there is a glitch mainly at the swash __________________ Shay.S. Futaba 10CHP Outrage Velocity 50(She's HERE!)

12-17-2011, 10:52 PM	#5 (permalink)
dunkonu23 Registered Users Join Date: Jan 2009 Location: Michigan, slightly Northeast of Hell	Please provide your headspeed, as well. Scott __________________ *Spartan Vortex Inside,Team Scorpion* KBDD Team Pilot ):>

12-18-2011, 02:38 AM	#6 (permalink)
shay Registered Users Thread Starter Join Date: Jul 2009	fb bird 8717 cyclic Corona 2.4 Rx futaba 10C with corona 2.4 module Y.S. 56 I believe the head speed doesn't matter(nor i know it) it happens in normal and in IU the tail stays firm during all times __________________ Shay.S. Futaba 10CHP Outrage Velocity 50(She's HERE!)

12-19-2011, 06:05 PM	#7 (permalink)
dunkonu23 Registered Users Join Date: Jan 2009 Location: Michigan, slightly Northeast of Hell	The reason I asked about headspeed is a condition called low headspeed wobble. It happens on mine in normal and idle 1. My headspeeds are 1750, 1950, 2050. At 2050, it's gone. It happens because damping is too hard at lower headspeeds and that allows direct translation when the lagging blade is providing no lift. So, if it's not that, I'm happy! If you think its your wiring, pull your wiring and check it. Is the wobble intermittent or does it happen all the time? Scott __________________ *Spartan Vortex Inside,Team Scorpion* KBDD Team Pilot ):>

12-17-2011, 05:28 PM	#2 (permalink)
bad007 Registered Users Join Date: Nov 2009	Pictures? Exactly what do you mean, tail wag, head has a wobble, skids shaking. Started after crash rebuild?

12-17-2011, 09:52 PM	#4 (permalink)
bad007 Registered Users Join Date: Nov 2009	More info, FB, FBL, whats powering it, what TX/RX.

12-19-2011, 06:16 PM	#8 (permalink)
shay Registered Users Thread Starter Join Date: Jul 2009	It happens occasionally not even every flight PS one wire o the regulator was loose so i replugged it i think it solved the problam all i have to do now is wait for Friday... __________________ Shay.S. Futaba 10CHP Outrage Velocity 50(She's HERE!)

12-20-2011, 04:24 AM	#9 (permalink)
dunkonu23 Registered Users Join Date: Jan 2009 Location: Michigan, slightly Northeast of Hell	If that's the fix, you may want to put Goop or Shoe Goo over the connectors to hold them in place. Scott __________________ *Spartan Vortex Inside,Team Scorpion* KBDD Team Pilot ):>

12-20-2011, 08:15 PM	#10 (permalink)
im4711 Registered Users My HF Map location Join Date: Oct 2008	stupid question but could you check if the motor mount is really tight? if using the longer scows it might have a unit play and cause vibrations. In addition check the same on the bottom plate mount. May not be your issue but have seen it.

12-21-2011, 08:55 PM	#11 (permalink)
bad007 Registered Users Join Date: Nov 2009	Intermitent. Sure could have bween a loose connection. Make sure the connectors fit tight. I run a bead of E6000 across the top of the servo connecotors at well as around the wires where they go into the plugs for the RXs so vibes don't eventually cause problems.

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