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  #1  
Old 08-07-2020, 12:27 PM
rjarrell's Avatar
rjarrell rjarrell is offline
 
Join Date: Dec 2013
Location: Phoenix, Az
Posts: 19
Default ZipTips Premiere Winglet Ė Vanís RV10-RV14

Need help/answers with my winglet installation for RV-14 build. Using the W-00026 (aileron neutral position template), from RV-14 plans 23-10 4/15/19 rev. 0, my tips come out 1/2 below the aileron. verified the template with my RV-10 built in 2014 and the manufacturing hole location. Also pulled a wingtip and it fits in the -14 wing or would with very little adjustment. FYI I have spoken to Damien at Aveo, Kevin at Vans (build assist) and previously added to another thread with no response.

Damien says he has sent out over 50 of these (not sure if they were -10 or -14's or the count of each) and has heard no complaints. Van's has no idea what going on but was very nice and would be interested is an answer also. All I see posted are pics of opening the boxes containing these tips no actual installations.

Any help, pics recommendation would be greatly appreciated (I'm married so don't worry about seeing a mistake I made and hurting my feelings). Thanks in advance.

ZipTip more than 1/2" off


Right ZipTip with W-00026 in place


Right wingtip


Right wingtip bottom


Right straight edge


Left wingtip


Left with W-00026


Comparing RV-10 (blue) and RV-14 (white) ZipTips


RV-10 ZipTip matched to RV-14 wing


Bracket on RV-10
[IMG]
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Last edited by rjarrell : 08-07-2020 at 05:16 PM. Reason: add pics
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  #2  
Old 08-07-2020, 12:45 PM
scsmith scsmith is offline
 
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Location: Ashland, OR
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I don't really know if this helps, but just a thought:

The RV-10 and RV-14 airfoil is designed to have the flaps and ailerons rigged to cruise with some negative (trailing edge up) deflection. Is it possible that the tips were not made to include that reflex in the aileron rig position?
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  #3  
Old 08-07-2020, 01:12 PM
David Paule David Paule is offline
 
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Location: Boulder, CO
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Got any photos of the winglets? (Not wingtips but winglets).

Reason I'm asking is that winglets usually increase the wing's bending moment, and generally aftermarket winglets may or may not factor that in, either by changing the operating limitations or by selective reinforcement or other means.

Sometimes they affect the flutter speed, too.... winglets can offer some advantages but might also have negatives.

Dave
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  #4  
Old 08-07-2020, 01:52 PM
MED MED is offline
 
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Location: Aiken, SC
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Quote:
Originally Posted by scsmith View Post
I don't really know if this helps, but just a thought:

The RV-10 and RV-14 airfoil is designed to have the flaps and ailerons rigged to cruise with some negative (trailing edge up) deflection. Is it possible that the tips were not made to include that reflex in the aileron rig position?
Looks to me like the new wingtip is below the aileron. Looks like a reflection from the other wing in a wing stand.
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  #5  
Old 08-07-2020, 02:42 PM
Tom Martin Tom Martin is offline
 
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Wait until the wings are on the airplane and the flaps and ailerons are mounted in fight mode, with the elevator fixed in the trail position.
I found that the template got close to the right position but the linkage needed some final adjustments. Then you can mount the tips to see if you really do have a problem
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  #6  
Old 08-07-2020, 03:20 PM
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rjarrell rjarrell is offline
 
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Location: Phoenix, Az
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Quote:
Originally Posted by Tom Martin View Post
Wait until the wings are on the airplane and the flaps and ailerons are mounted in fight mode, with the elevator fixed in the trail position.
I found that the template got close to the right position but the linkage needed some final adjustments. Then you can mount the tips to see if you really do have a problem
Awesome, this is kinda where I'm at right now. I can split the glass at the end right up to the rear position strobe light and adjust it. Just hoping there was a better way. Thanks for your reply. Rodney
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Last edited by rjarrell : 08-07-2020 at 03:20 PM. Reason: spelling
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  #7  
Old 08-07-2020, 04:57 PM
sjarrell sjarrell is offline
 
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Location: Hendersonville, NC
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Does anyone have any pictures of their wings finished with the new "winglet" ZipTips that shows them fitting properly?

Thanks!
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  #8  
Old 08-07-2020, 08:21 PM
sjarrell sjarrell is offline
 
Join Date: Jul 2010
Location: Hendersonville, NC
Posts: 169
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Quote:
Originally Posted by David Paule View Post
Got any photos of the winglets? (Not wingtips but winglets).

Reason I'm asking is that winglets usually increase the wing's bending moment, and generally aftermarket winglets may or may not factor that in, either by changing the operating limitations or by selective reinforcement or other means.

Sometimes they affect the flutter speed, too.... winglets can offer some advantages but might also have negatives.

Dave
I'm not sure what any of that would have to do with the alignment of the straight part of wingtip with the aileron as shown in any of the photos, but if you want to see the curved part of the Aveo Premier ZipTip (not the straight part in question) look at the photos on Aveo's site here.
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  #9  
Old 08-07-2020, 08:51 PM
sjarrell sjarrell is offline
 
Join Date: Jul 2010
Location: Hendersonville, NC
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I understand completely, but our question is regarding the fitment of the Aveo Premier ZipTips to the wings, not the aerodynamics of them.

Thanks!
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Building RV-14A QB "Freedom"
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  #10  
Old 08-09-2020, 04:24 PM
scsmith scsmith is offline
 
Join Date: Jan 2008
Location: Ashland, OR
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Quote:
Originally Posted by MED View Post
Looks to me like the new wingtip is below the aileron. Looks like a reflection from the other wing in a wing stand.
I think that is correct. The aileron is reflexed up, and it looks like the wingtip was made for a zero-reflex position of the aileron.
__________________
Steve Smith
Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet" Flying since Sept. 2009
Hobbs 700
also
1/4 share in 1959 C-182B (tow plane)
LS6-15/18W sailplane SOLD
bought my old LS6-A back!!
VAF donation Dec 2020
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