Oh my God :
I can't believe I am still in this conversation...but here goes.
Someone mentioned this conversation should be about " helicopters" O.K. try answering this.
You are at one thousand feet in a helicopter over the ocean the air has no vertical instability and the wind is steady at fifty knots from the north at your altitude.
You see a hot air baloon at your altitude.
You fly a constant angle of bank, constant altitude and power setting turn around and around and around the baloon.
If you only look at the baloon for reference will you be able to tell when you turn down wind?
Chuck