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May 16, 1993: Northern IL Soaring Contest, Hinckley, IL
- Soaring Magazine, February, 1995, p 33-35
Rudy Kunda & Michael Shakman
- “Ted Clausing, flying in wave over Southern Wisconsin,
experienced some of the best lift, up to 4 knots through 14,000 feet.
He thought the wave was several miles in length.
He also experienced greater than expected sink between areas of lift. While Jagr, Vredenberg, Clausing and others were flying the wave,
pilots in the convective zone below them were experiencing
strong thermals, often over 700 feet per minute.”
- This seems typical – convective-wave lift about half the maximum thermal strength in the convective boundary layer below.