At what altitudes does RVSM airspace begin and end?

RVSM, or Reduced Vertical Separation Minimum, is a set of regulations that create more efficient use of airspace by allowing aircraft to fly at altitudes with reduced vertical separation. Specifically, RVSM airspace is defined to start at Flight Level 290 (FL290) and extend to Flight Level 410 (FL410).

This altitude range is significant as it applies to most commercial and transport aircraft, focusing on optimizing air traffic management and reducing fuel costs through more efficient altitude choices. By permitting aircraft to operate within this RVSM airspace with only 1,000 feet of vertical separation instead of the traditional 2,000 feet, it allows for greater flexibility in flight planning and can alleviate congestion in certain altitude ranges.

The other options either extend above or below this specific altitude range, making them incorrect in the context of RVSM airspace. Thus, recognizing the defined altitudes for RVSM is crucial for compliance and safe operation within controlled airspace.