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Again, with the full-size: Notice that such luminaries as Boeing,
Douglas, et.al don't run their ailerons to the tips, but instead stop
short? As Troy and Doug have stated, the wingtip vortices generated
are the reason. I had a long discussion with Dick Hanson about this,
and he stated that "it didn't make any difference on our models."
Well, from what Troy has discovered about aileron pots, it seems it
DOES make a difference.<br>
Bill Glaze<br>
<br>
Troy A. Newman wrote:<br>
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<div><font face="Arial" size="2">They don't fly the same....and the
aileron thru the tip thing wears out servo pots faster. I flew a model
this past summer and it went thru aileron servo pots in 50 flights. I
normally get well over 100-125 flights. And this was a wood model so
the vibration was better damped than a composite fuse.</font></div>
<div> </div>
<div><font face="Arial" size="2">Wing tips have lots of turbulence
coming off of them...then stick a aileron in this turbulence. NOPE not
the best from an engineering standpoint. </font></div>
<div> </div>
<div><font face="Arial" size="2">The answer guys and manufacturers
give is it snaps better. My answer is design a good wing and it will
snap better. Copy a good wing and it will snap better. The ailerons
become more effective with the area at the tip....but I don't feel it
helps flight performance. Aileron thru the tip is much easier and
faster to build than a boxed in version. on the ARFy stuff its
cheaper...this is the biggest reason I think its done.</font></div>
<div> </div>
<div><font face="Arial" size="2">As for elevators without tips there
are no references. And the same things apply</font></div>
<div> </div>
<div><font face="Arial" size="2">All my models have them boxed and
will have them boxed in.</font></div>
<div> </div>
<div><font face="Arial" size="2">Troy</font></div>
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<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: initial; -moz-background-origin: initial; -moz-background-inline-policy: initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a title="twtaylor@ftc-i.net" href="mailto:twtaylor@ftc-i.net">Tim
Taylor</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a title="discussion@nsrca.org" href="mailto:discussion@nsrca.org">discussion@nsrca.org</a>
</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Saturday, January 29, 2005 7:46 AM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
No fixed tips?</div>
<div><br>
</div>
<div><font face="Arial" size="2">No fixed tips at the end of the
wing/stab seems to be the rage. Any real reason for this? I really
don't care for this very much as it makes it harder to make sure your
trim is right and the elev half's meet.</font></div>
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