Quote Originally Posted by Delta Whisky View Post
Not exactly the answer to your question but very appropriate to the issue: https://www.aopa.org/news-and-media/...ue-cheap-speed

There's more to the Carson speed then covered in the article; recommend you download a copy of his paper for all the details.
THAT is the article I was looking for, THANK YOU!!!!


In summary:
"A typical piston airplane’s maximum-range speed is about 10 percent above L/D max"

"Simply multiply your airplane’s best-glide speed by 1.316—or add 32 percent—and that’s the Carson number. "


This means for the Kitfox with its best glide speed of 65mph :
best range: 72mph ( 65*1.1)
Carson speed (best value): 85mph (65*1.316)


I now have the next two airspeeds to measure fuel economy!