Airplanes navigate by tracking from one
navaid to another.
It ensures that a missed approach is available in the event of a
navaid outage.
Two items caused concern: visibility and Navigational Aid (
NAVAID) outage.
It goes something like this: First, the approaches must be to different runways and use different
navaids. Two different RNAV approaches cannot be used in determining the calculations.
Navaids are typically placed in busy maritime areas to assist passing vessels steer a safe course.
In this case, something as simple as identifying the correct
navaids would have precluded a situation which could have easily been disastrous.
To service its contract to calibrate the
navaids at Mount Pleasant Airport in the Falkland Islands, FPL hires Britten Norman BN2 Islander, from the Falkland Island Government Air Services.
Upon the invitation of the host nation, Team GAF participates with a larger
NAVAIDS country study team consisting of the members of the U.S.
In many cases, GPS is being combined with more traditional
navaids such as the Inertial Navigation System (INS) to create newer and more effective systems which overcome the limitation of the individual systems.
Late last year, the FAA gave notice it "plans to transition from defining airways, routes and procedures using VOR" and other ground-based
navaids. The FAA plans to retain an optimized network of DME facilities and a minimum operational network of VOR facilities.