BendixKing KMH 920 System KMH 980 - Manual (Page 58)

EGPWS Functions and Features
Rev 2
KTA 970/KMH 980 Pilot’s Guide
006-18273-0000
50
The following figure is a graphical representation of the Runway Field
Clearance Floor in both Class B and Class C configurations.
Runway Field Clearance Floor (RFCF)
EXCESSIVE RATE OF DESCENT ALERTING AND
WARNING
The GA-EGPWS uses both GPS Vertical Velocity and pressure altitude
to compute vertical velocity information when the aircraft does not pro-
vide specific air data for this purpose. In either case, when the aircraft is
descending toward terrain at a high rate for its relative altitude above ter-
rain, the system will provide alerting and warning to the pilot. This func-
tion is always active.
The following graph represents the envelope of protection provided for
Excessive Rate of Descent scenarios:
Excessive Descent Rate