Since 1942, R-2515 has witnessed key achievements in flight from breaking the sound barrier to the development of spacecraft. R-2515 covers 1812 square miles within the R-2508 Complex and supports the testing of current and next-generation aircraft and aerospace systems under the direction of the 412 Test Wing Commander, Edwards AFB, California. Due to the hazardous nature of operations that occur within R-2515, civil users require permission for entry when it is active for DoD activities. Civil access requests can be submitted to the R-2515 Airspace Management office.