CTR
From a synopsis of the FLRAA requirements:
The Army wants the FLRAA to have a top speed of 250 knots, or more than 285 miles per hour, and potentially up to 280 knots, or more than 320 miles per hour. The maximum speed of the Army’s latest iteration of the Black Hawk, the UH-60M, is still under 200 miles per hour.
So minimum to be considered is 250 with desired 280. The Marines minimum is 280 with desired 320 kts.