Runway Visual Range
In the context of aerospace engineering, Runway Visual Range (RVR) is a crucial term that refers to the distance over which a pilot of an aircraft on the centerline of the runway can see the runway surface markings or the lights delineating the runway or identifying its centerline. RVR is typically measured in feet or meters and is used primarily in aviation weather forecasting and decision-making during takeoff and landing. It is a critical factor in determining the minimum visibility required for an aircraft to land or take off under various weather conditions. The measurement of RVR is typically done using transmissometers installed at various points along the runway. These devices measure the attenuation of light beams to determine the visibility. The RVR value is then used in conjunction with the aircraft's approach category and the type of approach being used to determine if a landing or takeoff can be safely conducted.
Your Previous Searches
Random Picks
- Microgravity-induced Bone Loss: Microgravity-induced bone loss is a medical condition that occurs in astronauts during spaceflight due to the absence of gravity. In microgravity, the mechanical loading on bones is reduced, leading to a decrease in bone density and strengt ... Read More >>
- Fiber-optic Gyroscope: A fiber-optic gyroscope (FOG) is a type of sensor that uses the interference of light to detect mechanical rotation. In the context of aerospace engineering, FOGs are used for precision motion sensing in navigation systems of various aircra ... Read More >>
- Dosimeters: Dosimeters are devices used to measure the amount of radiation exposure an individual receives. In the context of space and astronautical engineering, dosimeters are essential tools for monitoring the radiation levels that astronauts are ex ... Read More >>
Top News
Check out this interactive map of the early universe, considered largest ever cr...
A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now....
News Source: USA Today on 2025-06-12
The Vera C. Rubin Observatory is about to totally transform astronomy...
With the ability to scan the entire southern night sky every three days, the huge Vera C. Rubin Observatory could be about to start solving the mysteries of the universe, from dark matter to Planet Ni...
News Source: New Scientist on 2025-06-12
Trump's proposed science cuts will have huge consequences...
The universe will still be there to marvel at, despite brutal cuts set to hit NASA and the National Science Foundation's budgets. But the damage to future research will be long-lasting, says Chanda Pr...
News Source: New Scientist on 2025-06-11
Starlink satellites are leaking radio signals that may ruin astronomy...
Our ability to study faint radio signals from when the first stars began to form is being threatened by SpaceX's Starlink satellites, which seem to be unintentionally leaking radio signals that overpo...
News Source: New Scientist on 2025-06-09
Asteroids around Venus pose possible 'invisible threat' to Earth: Should you be ...
A swarm of large asteroids likely lurking around Venus could one day pose an "invisible threat" to Earth if left unchecked, astronomers have warned....
News Source: USA Today on 2025-06-06