Enhanced Vision System

All Weather Window®

The Kollsman All Weather Window® EVS has been developed to improve the capability for commercial, business and military aircraft to execute precision approaches and safely land in fog, rain, snow, and other reduced visibility conditions thereby reducing CFIT accidents. The Kollsman All Weather Window® EVS also provides improved situational awareness during ground operations aiding in runway incursion accident reductions.

Enhanced Vision System datasheet (541 KB)

Night Approach

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High Res. (5 MB)
Low Res. (3 MB)

Taxi Situational Awareness

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High Res. (4 MB)
Low Res. (2.5 MB)

Snow Approach

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High Res. (4 MB)
Low Res. (3 MB)

Fog Approach

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High Res. (3 MB)
Low Res. (2.5 MB)

The All Weather Window® consists of a 1 - 5 micron Forward Looking Infrared (FLIR) sensor specifically designed for this application; an Electronics Procession box; and an IR window installed in the aircraft radome. The Kollsman All Weather Window® uses proprietary video processing software algorithms to display an IR image of the airport environment, (buildings, ground vehicles, lighted and unlighted aircraft, and terrain, etc.) to the pilot on any raster capable Head-Up Display (HUD) or a head-down display (HDD), such as a CRT or LCD.

System Components

The All Weather Window®'s operational benefits are numerous. A primary benefit is to allow the pilot to identify the required visual cues (approach) lights, runway threshold, etc.) at the published Category I Decision Height or MDA so that the approach can be continued down to the CAT II Visual Transition Decision Height. The EVS IR sensor allows the pilot to "see" these required cues when reduced visibility conditions would prevent visual detection with the naked eye. The end result is that a Category I aircraft equipped with the Kollsman All Weather Window® will be able to execute a Category II precision approach at a Category I equipped airport.

A secondary benefit is that the All Weather Window® also improves overall safety and situational awareness making it an effective tool to aid in the reduction of CFIT and runway incursion accidents. Other airplanes in the air and on active taxiways and runways will clearly stand out in the EVS image, thus reducing the potential for accidental collisions.

Status

The Kollsman All Weather Window® EVS is now available for installations on all business, commercial, and military aircraft.