In addition to prohibiting flights when the runway visual range
falls below 1,800 feet, the FAA also prohibits flights at the airport when the cloud cover sinks too low.
Runway Visual Range
is a calculated assessment of the distance that a pilot can see down a runway, taking into account prevailing weather conditions as well as ambient light levels and runway light settings.
Developed with US Federal Aviation Administration participation, AMS describes the Model 2100 architecture as having been approved for Category I (60 m decision height, 800 m runway visual range
), II (30 m decision height, 400 m runway visual range
) and III (200 to 50 m runway visual range
) operation and as being available in multiple configurations featuring a wide variety of antenna arrays.
The recent upgrade now enables aircraft equipped for CAT II equipment and crewed by similarly qualified pilots to land in poor visibility conditions down to a runway visual range
of 350m with a decision height of 110ft.
Shortly afterward, the controller updated the runway visual range
information; the pilot did not acknowledge the information.
30 June 2010 - Finnish measuring equipment maker Vaisala Oyj (HEL: VAIAS) said yesterday that it has won an order worth USD2.7m to supply 16 units of its AviMet Runway Visual Range
(RVR) system to the US Federal Aviation Administration (FAA).
It has two runways equipped with the CAT IIIB instrument landing system, which helps flights operate in runway visual range
less than 200 metres but not less than 75 metres.
The runway visual range
was 75 metres for new runway (29/11) and 100 metres for the main runway (28/10), around midnight when the visibility became minimal.
Finnish electronic measurement systems and equipment manufacturer Vaisala Group said on Monday (1 August) that the US Federal Aviation Administration (FAA) had selected the company's runway visual range
systems for use at airports throughout the US.
The starting point for any analysis directed to predicting the effects of weather on the landing problem is the runway visual range