A PS to the post that I just made (because editing tends to disturb the format)............
Recommended to NOT use this technique in Tailwind conditions, which extend the 1st segment distance and reduce the gradient. Any Headwind is, of course, a bonus.
Using this 'fall back' data errs on the conservative side (Good!
), achieving for my main client a 44 ft screen height in lieu of the required 35 ft. 'My' CASA guy likes that, so do I.
Regards,
Old Smokey