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Honeywell pioneered the first Terrain Awareness and Warning System (TAWS) over 30 years ago. Today, we offer Enhanced TAWS protection in our “EGPWS”. This Pilot’s Guide describes the functions and operation of the MKV-A Enhanced Ground Proximity Warning System. (EGPWS). The document. The Mark V-A enhanced ground proximity warning system (EGPWS) is a replacement for the popular Mark V EGPWS. The Mark V-A is certified to the new terrain.

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The crew can view the terrain on their display even while 2, feet above the terrain. From Wikipedia, the free encyclopedia. Inland bodies of water, including the Great Lakes are not yet painted in cyan, Curtis adds, because they are not at zero MSL.

Honeywell is looking at a general aviation market of more thanaircraft, representing different types that range from single-engine piston aircraft to twin turboprops. Their FAA certification was expected in October.

Database – EGPWS – Honeywell Aerospace

Positioned for growth, the Mark V-A incorporates a faster processor and increased memory, with Ethernet outputs available to support advance displays. This was an easy feature to develop from the Honeywell database, says Curtis, because egpwd ocean surfaces are, obviously, at one elevation: So the display can show where I am, where I should land, and where I actually will land if I proceed with my course.

For fast military aircraft, the high speed and low altitude that may frequently be flown make traditional GPWS systems unsuitable, as the blind spot becomes the critical part. It received technical standard order TSO approval in July.

And Honeywell officials will tell you that, in terms of greater situational awareness, courtesy of EGPWS, there is hkneywell more to come.

Warning time can also be short if the aircraft is flying into steep terrain since the downward looking radio altimeter is the primary sensor used for the warning calculation. Both pilots must respond and act accordingly joneywell the alert has been issued.


One feature that can egpsw from this combination, says Curtis, is a kind of “intent bus,” which will indicate where the aircraft is going in relation to terrain. Almost certainly, the aircraft is not where the pilot thinks it should be, and the response to a GPWS warning can be late in these circumstances.

Enhanced Ground Proximity Warning System – Honeywell Aerospace

Full details in our Privacy Statement. The green color on the image indicates terrain safely below the aircraft. The system is combined with a worldwide digital terrain database and relies on Global Positioning System GPS technology.

What Peaks Mode offers is a depiction of the terrain below in various shades of green to denote ground elevations. Honywell using this site, you consent to the use of cookies. And red indicates terrain that the aircraft could impact within 30 seconds; it is accompanied by an aural “terrain, terrain, pull up.

For example, the field elevation predominates while the aircraft is on the ground; the radio altimeter during takeoff; and the GPS during cruise.

Yellow represents a cautionary alert seconds prior to the predicted time of impact and is accompanied by a “caution terrain” aural message.

The obstacle database is being expanded to include other parts of the world. ebpws


The system prioritizes the use of the three sources, depending on the phase of flight, to assure the most accurate altitude reading. But look-ahead algorithms provide data to predict possible incursions with terrain at up to two minutes in advance. This applies to all new aircraft produced after March 29,wgpws to all older aircraft needing retrofit by March 29, Receive the latest avionics news right to your inbox. This compares the aircraft position, heading, and the height above field HAF against the database to provide a protective, joneywell envelope around the aircraft during the approach and down until the wheels touch the pavement.


An Indonesian captain has been charged with manslaughter for not adhering to these procedures. The runway field clearance floor RFCF feature provides protection against inadvertent landings below airport runway thresholds at airports that are much higher than surrounding terrain.

Since it can only gather data from directly below the aircraft, it must predict future terrain features. View documents immediately and gain access to all Honeywell’s products and services in My account. Installers can use the existing Mark V program pins or select configuration options via a loadable database.

A computer then keeps track of these readings, calculates trends, and will warn the flight crew with visual and audio messages if the aircraft is in certain defined flying configurations “modes”.

As a result of these studies and recommendations from the U. Advisory callouts, for when the aircraft descends through predefined altitudes below 2, feet AGL or a decision height set on the radio altimeter, or when bank angles become too steep; and. As a work of the U. Key system details are: Depending on the type of operation, TAWS is only required to be installed into turbine-powered aircraft with six or more passenger seats. The Changing Landscape of Cybersecurity in Aviation. Hello, Your privacy is important to us.

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TAWS equipment is not required by the U. All along, it has entered a growing number of aircraft types and helped significantly in reducing the safety problem of controlled flight into terrain CFIT. Click to not show the message again.

In the late s, a series of controlled flight into terrain CFIT accidents took the lives of hundreds of people.