REFLECTOR: In pursuit of speed

Scott Baker scottb33333 at gmail.com
Sat May 11 07:51:46 CDT 2013


Hi Geoff,
Unfortunately your ideas about exchanging wings are not going to work.
While the V173 long wing shares the same dimensions as the XL wing, the 
V173 spar is not built as strong as the XL spar.  It would not be 
advisable for an XL builder to install V173 main wings.
As to installing a set of Velocity standard wings on your aircraft, the 
height of the standard spar is shorter than the center section spar on 
your aircraft - so the spar heights are not going to match up.
If you have time and are into the idea of heavy "experimenting" to 
reduce wing drag, you might look into clipping the V173 wings, making 
them several feet shorter.  This would involve removing and then 
re-attaching the winglets, which is obviously a big job and not very 
cost effective.
If you are in the quest for more significantly more speed, my opinion 
(for what it is worth) is to abandon the idea of straight exhaust (yes, 
it may add some speed gain, but probably not as much as you seek) - and 
consider a turbo normalized system for your engine.  Turbo charging will 
easily give you +20 ktas at higher cruising altitudes (around 
12,000'msl).  Also plan on purchasing a cs or variable pitch propeller 
if you go to turbocharging.  Second hand turbo charged systems can be 
found off of several Mooney and Commander aircraft.
Good Luck!
Scott B.


On 5/11/2013 8:19 AM, Geoff Gerhardt wrote:
> Guys,
>
> I contacted Clinton at Custom Aircraft Parts.  Turns out he was just 
> going through his warehouse a week ago and came across a set of tack 
> welded pipes for a IO-360 Velocity.  He sent me pics, and it looks 
> like they will work.  So, I may have a set pretty quick.
>
> Does anyone have any experience swapping wings b/w Velocities?  If I 
> could find a set of normal SE wings and swap out my 173 wings?  Does 
> anyone have a set of SE wings kicking around?  173 wings are 
> essentially XL wings, right?  If so, perhaps there's someone out there 
> building an XL who would like a set of fully completed wings and I 
> could just buy a set of fast build wings from the factory.  If I got 
> 15kts out of swapping wings, I'd do it.
>
> Geoff
>
>
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20130511/8235163d/attachment-0001.html>


More information about the Reflector mailing list