Technical data

Product Specification
HIF-2121/R5 CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 965-1176-601 REV: D SHEET 51
Figure 6.2.1-4 indicates the actual Mode 1 caution/warning curves for turboprop aircraft (Figure 6.2.1-4A for turbofan),
considering filter lags and time delays, for constant descent rates initiated from 2450 feet radio altitude over water or flat
terrain. Both the outer and inner curves are shown.
3000
0
2000
4000
6000
ALTITUDE RATE (FPM DESCENT)
M
IN
T
E
R
R
A
IN
C
LE
A
R
A
N
C
E
(F
T
)
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
SINKRATE CAUTION AREA
PULL UP WARNING AREA
ALERTS FROM 2450 FT AGL
OVER FLAT TERRAIN OR WATER
FIGURE 6.2.1-4: MODE 1 DYNAMIC ALERT ENVELOPE FROM 2450 FEET (TURBOPROP)