On Wednesday, January 20, 2016 at 12:05:50 PM UTC-5, Eric Nielsen wrote:
I've recently purchased an LS-3a. My P.O.H. does not include a Polar Curve Graph, so I'm having difficulty finding difficulty in finding speeds for Min. sink, speeds to fly in Headwind/Tailwind, and in sink. Any Help is appreciated.

Paul at Cumulus Soaring has a polar page including LS3. http://www.cumulus-soaring.com/polars.htm Excellent resource.

You can cross-check the LS3a polar to make sure it is close enough (it should be).