On Nov 2, 11:46*am, Robert Fidler wrote:
Ken,

Suggestion for you, start off by measuring the max thickness of each
wing at say the root and 1meter increments and compare the two
measurements. With that info in front of you, you will discover that
gliders wings are not precision manufactured. The amount of work and
money it would take to make two identical and correct to a speciific
airfoil shape may be more than realistic. I would devote my time to
making the leading edge correct and the remainder of the wing fair.

Bob Fidler "F1"

On Nov 1, 5:25*am, BruceGreeff wrote:







The joys of ever advancing computer computational power.
As things have become possible to calculate so the glider wings get more
complex. The current crop of 18m ships are currently approaching thirty
profiles over the ~8.7m of wing... To

They generally blend the transition from one to the next, but you
certainly can't measure a station and extrapolate further out or inboard.

Yes they are not all made in CNC machined steel female mounds like the
JS1 - and even there I am sure there is manufacturing variation, but you
would have to think carefully before re-profiling significantly. Easy to
disimprove things.

On 2011/10/31 4:51 PM, Rick Walters wrote:

On Oct 30, 3:40 pm, wrote:
Can anyone help with the wing profile data for a Ventus 2cm? I need
the numerical data and if possible someone who could make templates on
a CNC. I have contacted US dealer with no response. *Ken

Ken

SH does not publish their airfoil data, or glide polars for that
matter.
The Ventus airfoil has changed in subtle ways since the 1981 a/b model
introduction.
The most notable changes have been a sharper leading edge and a
thinner profile near the wingtip,
which showed up on the V2a/b and C models. Take Bob's advice and sand,
smooth, and polish.

Rick

--
Bruce Greeff
T59D #1771 & Std Cirrus #57

Better use the time and $$ to fly and train rather than trying to
achieve the utmost accuracy. One wrong thermal and you are a behind.