REFLECTOR: VG's

[Glenn Babcock]

I held off putting them on my SERG with an MT prop because I had plenty of takeoff power, but another owner convinced me to try them. I found very little difference in top speed, and a marked improvement at low speeds. The elevator and ailerons were much more effective, and the canard stall was at least 5 knots lower. I highly recommend them. 

Regards,

Glenn


On Jun 7, 2012, at 11:21 AM, Grover McNair <grover at mcnairperformance.com> wrote:

> My understanding is that VGs give better control at low speeds with some small sacrifice of top speed. Having plenty of power would likely compensate somewhat for the added drag. In thinner air and high density altitude they should help landing significantly. I have them on my 173lw. 
> Grover McNair
> 
> 
> Sent from my iPhone
> 
> On Jun 7, 2012, at 12:01 PM, nmflyer1 at aol.com wrote:
> 
>> New thread off of the testing of 44DX. 
>> 
>> I am split right down the middle on whether to install VG's on my 173 FGE, 325HP Aluminum V-6. 
>> Most of my flying is out of High Density Altitude Airports. 
>> It is 10AM here, and the density altitude is already 7000', my home field length 4400'
>> 
>> I know VG's would lower critical speeds. What I do not know is if I will need them with the extra power. 
>> I could just wait until flight testing to make the decision. See how it flies without.  
>> Just thought I would try and get some input from people that routinely fly out of high density altitude airports. 
>> 
>> Thanks, 
>> 
>> Kurt
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