What does RVSM give you?

• A. 1000 ft increased vertical separation minimum
• B. 1000 ft reduced vertical separation minimum between approved aircraft
• C. 2000 ft reduced vertical separation minimum
• D. No change to vertical separation

Answer: (B)

RVSM reduces the vertical separation minimum in enroute airspace. It lets aircraft that are properly equipped and certified for RVSM maintain 1000 feet of vertical separation instead of the traditional 2000 feet. This change increases airspace capacity and efficiency, because more flight levels can be used within the same airspace strip. To make this safe, RVSM requires aircraft to have two independent altitude measurement systems and reliable altitude-keeping performance, and airspace users must be approved for RVSM with ATC clearances that designate the airspace as RVSM. In many regions, RVSM applies between flight levels roughly from FL290 to FL410. The other options propose increased separation or no change, which contradict the purpose and rules of RVSM.