Pof F/ power curve question
Any ideas what the correct answer is? The more i thought about it with the power curve the more i doubted the answer.....
'If an aircrafts best range speed is 60 knots indicated, and it is flying with a 20 knot tail wind, what would be the aircrafts best range speed? (Or words to that effect).
60 kts, 40kts or something else???