Would you please post the link to Kai's article?

Thanks


From Kai's XC questions and answers:

3) Best L/D speed would be the best to fly when

a) thermaling
b) flying to a landing field in a headwind
c) flying to a landing field in a tailwind
d) flying to a landing field in a crosswind

D - When flying in calm air or a crosswind, we need to use the best L/D
speed to get the maximum distance for loss of altitude

This is an interesting question because none of the answers are correct
IMHO. A and B are right out, of course. You could argue that answer C is
the closest answer. Answer D would be close if the crosswind was low.
But, if the xwind is say, 30kts, you still have a +20kt headwind component.

Tony V.