NOTE: X’s represent variable values defining a specific application and configuration software version (i.e., -210-210 for MK V/VII or –001 for MK VI/VIII).
MK V & MK VII EGPWC MK VI & MK VIII EGPWC
Figure 1-1 - Enhanced Ground Proximity Warning Computers
1.3 REFERENCE DOCUMENTS
The following documents are identified as additional EGPWS references:
MK V and MK VII:
965-0976-603 .........Product Specification for the EGPWS (MK V and MK VII)
993-0976-401 .........Interface Control Document for the Mark V EGPWS
993-1076-401 .........Interface Control Document for the Mark VII EGPWS
060-4199-125 .........Installation Design Guide for the MK V EGPWS
060-4199-225 .........Installation Design Guide for the MK VII EGPWS
060-4241-000 .........MK V and MK VII EGPWS Pilot Guide
060-4267-000 .........EGPWS Terrain Database Airport Coverage List (MK V and MK VII)
MK VI AND MK VIII:
965-1176-601 .........Product Specification for the MK VI and MK VIII EGPWS
993-1176-601 .........Product Description for the MK VI and MK VIII EGPWS
993-1176-401 .........Interface Control Document for the Mark VI/VIII EGPWS
060-4314-125 .........Installation Design Guide for the MK VI/VIII EGPWS
060-4314-000 .........MK VI and MK VIII EGPWS Pilot Guide
060-4326-000 .........EGPWS Terrain Database Airport Coverage List (MK VI and MK VIII)
2 DESCRIPTION AND OPERATION
2.1 GENERAL SYSTEM DESCRIPTION
The purpose for the Enhanced Ground Proximity Warning System (EGPWS) is to help prevent accidents caused by Controlled Flight Into Terrain (CFIT), obstacles, or severe windshear. The Enhanced Ground Proximity Warning Computer (EGPWC) accepts a variety of aircraft sensors and system inputs and applies alerting algorithms to provide the flight crew with aural messages and visual annunciations when the boundaries of alerting envelopes are exceeded. A graphic depiction of terrain and obstacles within the range selected on an EFIS or Weather Radar display may be configured for enhanced situational awareness with respect to terrain and obstacles. Figure 2-1 provides an overall system block diagram.
AUDIO ALERT
MESSAGES
FLIGHT DECK
SPEAKERS
AND
INTERPHONE
ALERT LAMPS
OR
EFIS DISPLAY
EFIS DISPLAY
OR
Wx RADAR
INDICATOR
EGPWC
The EGPWS is comprised of the following:
.
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