Charlie Quebec wrote on 8/14/2018 9:07 PM:
The performance gain was .25 of an L/D point at 100kt, at a cost of $7000 aust. Must be the most expensive LD per dollar ever.

Irrelevant - no one adds winglets to gain L/D at 100 knots; generally, it's to
improve the low speed handling, thermalling, and low speed L/D.

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Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1
- "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm

http://soaringsafety.org/prevention/...anes-2014A.pdf