Obstacle Collision Avoidance System

The Obstacle Collision Avoidance System (OCAS) is designed to alert pilots if their aircraft is in immediate danger of flying into an obstacle. OCAS uses a low power ground based radar to provide detection and tracking of an aircraft's proximity to an obstacle such as a power line crossing, telecom tower or wind turbines. This capability allows the visual warning lights to remain passive until an aircraft is detected and known to be tracking on an unsafe heading. This leaves the nighttime sky free of unnecessary light pollution thus decreasing public annoyance issues while improving the environmental habitat.

OCAS is currently the only FAA approved Audio Visual Warning System (AVWS) approved in the National Airspace. OCAS is also the only AVWS approved by the International Dark Sky Association.

OCAS is operational in the US, Canada, Norway and Germany.

Overview

Radar Coverage: The OCAS system is designed to protect obstacles that are vulnerable to low flying aircraft. OCAS detects the ground speed, heading and altitude of approaching aircraft and determines whether it will adequately clear the obstacle. A configurable set of rules is applied to define and determine when to warn the aircraft, by which warning devise and signal depending on the calculated time to impact with the obstacle.

Initial Warning - Medium Intensity Lighting: Once the initial threshold is met, the visual warning is activated. This capability allows the lighting system to remain passive (in the off position) the vast majority of the time thus preserving the dark sky environment while adhering to strict safety standards set out by the FAA.

Secondary Warning - Audio Broadcast: If the initial warning does not result in the pilot altering the flight path, a programmable VHF radio broadcasts an additional obstruction warning directly to the cockpit. The VHF warning frequencies are adjusted based on local requirements.

With both visual and audio warning capabilities, the OCAS system provides continuous protection 24 hours a day 7 days a week regardless of local visual conditions and without specialized equipment requirements for the general aviation community.

External links


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Ground proximity warning system — (GPWS) is a system designed to alert pilots if their aircraft is in immediate danger of flying into the ground or an obstacle. Another common name for such a system is ground collision warning system (GCWS). Commercial aircraft The system… …   Wikipedia

  • Precrash system — A precrash system is an automobile safety system designed to reduce the severity of an accident. Also known as forward collision warning systems they use radar and sometimes laser sensors to detect an imminent crash. Depending on the system they… …   Wikipedia

  • Vessel monitoring system — Vessel monitoring systems (VMS) are used in commercial fishing to allow environmental and fisheries regulatory organizations to monitor, minimally, the position, time at a position, and course and speed of fishing vessels. They are a key part of… …   Wikipedia

  • Peak 2 Peak Gondola — One of the 28 cabins on the Peak 2 Peak Gondola The Peak 2 Peak Gondola is a tri cable gondola lift located in Whistler, British Columbia that links Whistler Mountain s Roundhouse Lodge with Blackcomb Mountain s Rendezvous Restaurant. It is the… …   Wikipedia

  • Ocas — may refer to: Obstacle Collision Avoidance System, audio visual beacons designed to alert pilots in immediate danger of flying into an obstacle Ontario College Application Service, a non profit corporation This disambiguation page lists articles… …   Wikipedia

  • Ontario College Application Service — «OCAS» redirects here. See also: «Obstacle Collision Avoidance System» The Ontario College Application Service (OCAS) is a non profit corporation created by the Colleges of Applied Arts and Technology and Institutes of Technology and Advanced… …   Wikipedia

  • Peak 2 Peak Gondola — Innenansicht …   Deutsch Wikipedia

  • Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K …   Deutsch Wikipedia

  • Organisation européenne pour l'équipement de l'aviation civile — L Organisation européenne pour l équipement de l aviation civile (EUROCAE, acronyme de EURopean Organisation for Civil Aviation Equipment) est un organisme européen qui fédère les acteurs du domaine de l aviation civile afin d établir des règles… …   Wikipédia en Français

  • Anexo:Abreviaturas aeronáuticas y aeroespaciales — Un glosario de abreviaturas usadas en relación a la aeronáutica y la astronáutica, en orden alfabético. Contenido A B C D E F G H I J K L M N Ñ O P Q R S T U V W X Y Z A …   Wikipedia Español


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.