REFLECTOR: VG for naca scoop.

[Al Gietzen]

Jim;  

Could this be more an issue of thrust than lift?  At what speed do you
'break ground'?  What is your static rpm? What rpm do you see during takeoff
roll?

 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jim & Sharon Beck
Sent: Wednesday, March 19, 2008 9:57 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: VG for naca scoop.

 

Thanks for all your good information on the VGs placement and other good
ideas. I've been working on shortening my takeoff roll on my 173 Elite RG
with 200 hp Lyc and MT electric prop. 2 people & 40gal fuel take me about
2700 ft to break ground at our 4000 ft elevation here in the winter at 50
degree temps and fully loaded in the summer much longer. So far I've added
the lower winglets and gained about 300 ft on takeoff roll and just put 6 pr
of vg on the outboard main wings, about 1/2 of the full recommended set.
Hope to test that when the wind quits blowing and then will possible ad the
full set on the main wings. may skip the canard or just put a few on as I
don't have trouble rotating, just getting the main wing to leave the ground.
will try your suggestions on the oil cooler and also a naca for back seat
ventilation that doesn't seem to have much air coming through.

Thanks again

Jim

 

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