On Saturday, May 16, 2020 at 2:49:34 PM UTC-4, wrote:
All that is good but the software doesn't know your climb rate, only your guess.
UH

True, but neither does our McReady (computer or whiz wheel or whatever), and we dial in our observed/expected climb rate to compute our McReady cruise speed and final glide speed. No essential difference - just would be a more complex algorithm, yes? And like McReady speed-to-fly, by quickly doing the math grunt work, it would not be perfect, but would help us make a better decision to up the CHANCE of winning (not the guarantee of winning).

Hmmm...maybe could be as simple as just adding the water weight effect on the polar to the McReady formula? Sort of a "super-McReady"?

I'm no mathematician...just a dreamer :-)

Ben