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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA
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 Posted: Thu Mar 31, 2011 8:49 am Post subject: Heavy Right Wing... |
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Dear Listers,
Well, taking the RV-8 in for paint is getting closer and closer and I'm trying to get all the little things that need doing done before then. Dealing with the heavy right wing is the next thing on the list. Currently, at low speed I have about neutral aileron trim. The faster I go, the more LEFT trim I need. Above 200mph, I run out of left trim and the left aileron is noticeably "up", maybe .125" or so. Both of my ailerons are "chubby" at the trailing edge. I wanted to confirm with the List that "squeezing" the RIGHT aileron will add a bit of lift on the RIGHT side and hopefully neutralize the issue?
Thanks!
Matt
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Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 160+ Hours TTSN - Paint job is all that's left...
| | - The Matronics RV8-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV8-List |
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_________________
Matt Dralle
Matronics Email List Administrator |
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 26321
Location: Livermore CA USA
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| Posted: Thu Mar 31, 2011 7:52 pm Post subject: Heavy Right Wing... |
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Thanks to everyone for the great feedback on this issue!!
I went out after work tonight and had a look at the aileron alignment and sure enough, the outboard edge of the right aileron was high by about 1/16-3/32 of an inch. I took the hinge off the aileron and elongated the holes slightly and reassembled, dropping the outboard side by about 1/16". I went out and took it up to about 220mph and now - are you ready for this - it requires full RIGHT trim! Completely the opposite from before. So, obviously I need to reduce the drop by 50% and I should be dead-on neutral trim! Its amazing to me how such a little movement had such a HUGE impact on the trim. No, aileron edge smooshing necessary, by the way! Whew!
Best,
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Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: 160+ Hours TTSN - Paint job is all that's left...
At 09:10 AM 3/31/2011 Thursday, Matt Dralle wrote:
| Quote: |
Dear Listers,
Well, taking the RV-8 in for paint is getting closer and closer and I'm trying to get all the little things that need doing done before then. Dealing with the heavy right wing is the next thing on the list. Currently, at low speed I have about neutral aileron trim. The faster I go, the more LEFT trim I need. Above 200mph, I run out of left trim and the left aileron is noticeably "up", maybe .125" or so. Both of my ailerons are "chubby" at the trailing edge. I wanted to confirm with the List that "squeezing" the RIGHT aileron will add a bit of lift on the RIGHT side and hopefully neutralize the issue?
Thanks!
Matt
|
| | - The Matronics RV8-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV8-List |
|
_________________
Matt Dralle
Matronics Email List Administrator |
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