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YIKES!!! Crashed by DPS today

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Old 07-27-2010, 05:58 PM
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wjbender
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Default YIKES!!! Crashed by DPS today

I built a DPS as a combat plane with a Thundertiger pro 46. I was a rocket ship and performed beautifully. On my second pass arount the field today I had no ron control and she went down. I found the gears in the ron servo (Hitec HS635HB) stripped. All I can figure is that flutter must have done me in.

Do you guys usually use metal gear servos?

any suggestions to prevent this from happening again?
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Old 07-27-2010, 06:30 PM
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Default RE: YIKES!!! Crashed by DPS today

Did you taper the ailerons near the wingtips?

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Old 07-27-2010, 07:10 PM
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Default RE: YIKES!!! Crashed by DPS today

I've got standard servos in my wing, but I do have two of them and I have wingtips on mine to get that vortex away from the ailerons. I also have a TT 46 on mine and it does go like stink, even with only an 11x5 on it.
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Old 07-27-2010, 09:42 PM
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Default RE: YIKES!!! Crashed by DPS today

NO I will do that on the rebuild

Is a non metal gearservo OK?
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Old 07-27-2010, 10:16 PM
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Default RE: YIKES!!! Crashed by DPS today

All I have ever used are standard ball bearing servos. Futaba 3004's and Hitec HS425's.
I have built seven DPS's, three 40 sized, two 60 sized, one with a Roybi 31 gasser and a 40 size twin.
I learned about tapering the ailerons on the SPAD site and have never had a problem with flutter.
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Old 07-28-2010, 06:09 AM
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Default RE: YIKES!!! Crashed by DPS today

I don't even use the BB servos.
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