REFLECTOR: VG

Fri Jan 6 11:28:37 CST 2012

I fail to see how trailing edge fences work!
They are behind all of the surfaces that would make a difference.  I'm 
not denying that they work, I just don't understand how they could work.

On 1/6/2012 11:00 AM, Stockman, Bill wrote:
>
> One benefit I   noticed with the fences is it helped stabilize the 
> plane on final approach at lower speeds---it keeps the ailerons 
> effective longer.    You can seem them in  the new calendar (I'm Miss 
> September!).
>
> Bill Stockman
>
> Senior Associate
>
> Dayton Aerospace, Inc.
>
> 937.426.4300  Office
>
> 937.369.4799  Cell
>
> _bill.stockman at daytonaero.com_ <mailto:bill.stockman at daytonaero.com>
>
> www.daytonaero.com
>
> *From:*reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> *On Behalf Of *nmflyer1 at aol.com
> *Sent:* Friday, January 06, 2012 11:32 AM
> *To:* reflector at tvbf.org
> *Subject:* Re: REFLECTOR: VG
>
> Bill,
>
> That is just the kind of information I needed. I kept self debating 
> whether to install the VGs or to fly it first and see if I thought I 
> needed them. I am really not too keen on installing those things due 
> to the pains in keeping them on , things clean & not bleeding! If they 
> actually provide a significant benefit, then I believe it would be 
> worth it .
>
> Since my 173 FGE is quite a bit different than most, one never knows 
> just how much benefit can be attained by VGs, but your input is 
> appreciated.
>
> I have mentioned the high density altitude that I fly at (5000' field 
> elevation and high summer temps), and the relatively short runway for 
> canards at high DA (4450').
>
> Things done to address this condition:
>
> -Long wing (173) instead of short
>
> -Elevator cuffs not installed
>
> -340 HP aluminum engine
>
> -76" 3-blade constant speed prop
>
> -modified lower winglets installed (about half size)
>
> -speed brake
>
> -extra rudder throw
>
> I hope with all of these things (and most likely the VGs) that I will 
> have a velocity that is safe and capable at our high density altitudes.
>
> Thanks again
>
> Kurt
>
> -----Original Message-----
> From: Stockman, Bill <bill.stockman at daytonaero.com>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Sent: Fri, Jan 6, 2012 4:17 am
> Subject: Re: REFLECTOR: VG
>
> I've flown with and without them on my 173FGE and they make a 
> difference, I also added trailing edge fences and they make a 
> difference.    With both, I can put the plane into 2000 ft runways or 
> clear trees.    I flew for ten years out of Moraine airpark in Dayton 
> which is short, 20 ft river levees at both ends and 75 ft  mature 
> trees---the velocity handled all with great ease.    The trick was 
> learning to slow down on the approach and landing.    Anyone can fly 
> fast, but learning to slow down on final is a must and the VGs and 
> fences help a lot---especially for those of us who don't have those 
> big MT rotating speed brakes.
>
> Bill Stockman
>
> Senior Associate
>
> Dayton Aerospace, Inc.
>
> 937.426.4300  Office
>
> 937.369.4799  Cell
>
> _bill.stockman at daytonaero.com_ <mailto:bill.stockman at daytonaero.com>
>
> _www.daytonaero.com_ <http://www.daytonaero.com>
>
> *From:*_reflector-bounces at tvbf.org_ 
> <mailto:reflector-bounces at tvbf.org> 
> [_mailto:reflector-bounces at tvbf.org_ 
> <mailto:reflector-bounces at tvbf.org?>] *On Behalf Of *Peter Braswell
> *Sent:* Friday, January 06, 2012 10:59 AM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: VG
>
> All,
>
> The VG's seem to be a bit of a pain to deal with.  I was wondering 
> about the tangible benefit they provide and are they worth the heart burn?
>
> I had VG's on my Glastar.  They were however just triangular shaped 
> devices that were mounted just above the airfoil out on the leading 
> edge and they roughly followed the curvature of the wing.  There were 
> two on each wing, one mounted about 3/4 outboard and the other right 
> at the root.  They were advertised to lower the stall speed and to 
> help maintain aileron effectiveness at low airspeeds.  I ended up 
> removing the root mounted VG's to better seal the wing root area (the 
> cabin was drafty) and I didn't notice one bit of difference in either 
> handling or the stall speed.
>
> Peter
>
>
> ------------------------------------------------------------------------
>
> *"It's a Jungle Up There": _www.zuluworks.com_ <http://www.zuluworks.com>*
>
> *Great Aviation Gear: _www.sky-gadgets.com_ <http://www.sky-gadgets.com>*
> ------------------------------------------------------------------------
>
> On Fri, Jan 6, 2012 at 9:52 AM, Scott Derrick <_scott at tnstaafl.net_ 
> <mailto:scott at tnstaafl.net>> wrote:
>
> I have CC I vg's on my plane. They are OK. They are sharp and care 
> must be used when washing the plane. They also get brittle over time, 
> they are not UV proof as advertised.
>
>
>
> Barry Gibbons &_lt;gibbons at as.net_ <mailto:lt%3Bgibbons at as.net>> wrote:
>
>   I was looking at Velocity's store web site and they didn't have the 
> VG for the wings and canard. I found a place called CCI of New Jersey 
> has any body used their VGs?
>
> Barry
>
>
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