Honeywell MK VIII Pilot's Guide

060-4314-000 • Rev. C - May 2004
MK VI & MK VIII EGPWS Pilot Guide
27
Terrain
Clearance
Floor
Continued
Improved TCF Envelope
Improved TCF Envelope Plan View
The alert envelope is limited to a minimum of 245 feet AGL adja-
cent to the runway as illustrated in the following diagrams. The
Envelope Bias Factor is reduced (moved closer to the runway)
when higher accuracy aircraft position and runway position in
-
formation is available. This is typically 1/3 to 1 nm, varying as a
function of position accuracy, providing protection against landing
short events. With version -022 and later models, the envelope
bias factor is reduced to 1/4 nm if runway and position data is of
high integrity.
1/2 Runway Length
(Minimum Elevation Number)
Envelope Bias Factor
TCF Alert Envelope
12NM
4NM
15NM
700'
30'
400'

Honeywell MK VIII Specifications

General

Brand	Honeywell
Model	MK VIII
Category	Security System
Language	English