Equipment onboard the orbiter receives data from the MSBLS stations and automatically makes any needed adjustments to the glide slope. The azimuth and elevation data are broadcast by a rapidly oscillating antenna. Tweet on Twitter Document Information Number 00-31A Title United States (U.S. Army Field Artillery officer who was deployed to Afghanistan with the 101st Airborne Division (Air Assault). Each runway has two MSBLS shelters, one for elevation and one for azimuth and distance. The MSBLS is a Ku-band precision approach and landing navigation aid that provides slant range, azimuth, and elevation data to the orbiter from approximately an 18,000 ft (5486 m) altitude, 15-nautical miles (28 km) range, through touchdown. The orbiter's final landing approach is guided by the Microwave Scanning Beam Landing System (MSBLS). Each orbiter has three independent, redundant TACAN sets, each with two antennas.

29. INTRODUCTION (2) use the bearing and distance from a specific beacon to fix his or her geographic location. TACAN ground installations, known as beacons, provide an L-band (1 gigahertz) signal that indicates the range and magnetic bearing angle from the TACAN antenna to the user. The Tactical Air Navigation System, or TACAN, located on the flightline here, was replaced and upgraded as part of an Air Force wide 43M modernization project Nov. The TACAN signal ranges to 300 nautical miles (483 km) and is received by the orbiter when it emerges from the reentry blackout period. The TACAN is a worldwide air traffic navigation system operated by the Department of Defense and used by civilian and military aircraft. A Tactical Air Navigation (TACAN) system is used by pilots to execute instrument landing approaches to the runway.

The Shuttle Landing Facility is equipped with a number of navigation and landing aids to assist shuttle pilots in landing. The Tactical Air Navigation (TACAN) System is a line-of-sight, beacon-type, air navigation aid that provides slant range, bearing, and identification information to TACAN-equipped aircraft in.

Tactical air navigation