At what altitudes does RVSM airspace begin and end?

RVSM, or Reduced Vertical Separation Minimum, is a system that allows aircraft to operate with reduced vertical separation between flight levels. Specifically, RVSM airspace begins at Flight Level (FL) 290 and extends up to FL 410. This range allows for a separation of just 1,000 feet between aircraft, as opposed to the standard 2,000 feet that is used outside of RVSM airspace.

The altitudes of FL290 to FL410 are carefully designated to ensure the safety and efficiency of high-altitude flights, particularly in busy air traffic corridors. Aircraft operating in this airspace must be RVSM-compliant, meaning they are equipped with the necessary technology and systems to maintain accurate altitude and ensure proper separation.

The choice of FL290 to FL410 reflects the operational needs of both commercial and general aviation, as it encompasses a significant portion of the airspace used for long-haul flights, allowing for optimized routing and fuel efficiency.

Other options, while close, do not correctly encompass the full range of RVSM airspace as defined in current aviation regulations.