RVSM vertical separation for North America?

• A. 500 ft
• B. 1500 ft
• C. 2000 ft
• D. 1000 ft

Answer: (D)

In RVSM airspace, the vertical separation between flight levels is reduced to 1000 feet to allow more aircraft to operate efficiently within the same vertical block. In North America, this standard applies between flight levels 290 and 410, so adjacent aircraft are separated by 1000 feet while cruising in that band. This relies on aircraft having certified altitude-keeping systems and two independent altitude measurement sources to ensure accuracy.

So the best answer is 1000 ft. The other values aren’t used as the required separation within North American RVSM airspace is one thousand feet; larger separations would waste capacity, and smaller separations aren’t allowed without different, more stringent systems.