DESCENT TABLE.

This table will show the normal descent distance.

Valid for DC9.

NORMAL
DESCENT
0.76/280 kt

R/D = 1000fpm to
FL 240, then FLT
IDLE





LW = 42t
Cor+1NM/t >42t
-1NM/t <42t 		FL Time
(min)		 DESCENT DISTANCE (NM)
vs WIND COMP (kt)		 Fuel
(kg)
Headwind
-60      -30		 Wind

0		 Tailwind
+30      +60
350
330
310
290		25
23
21
19		113
101
90
80		 125
112
100
89		137
123
110
98		149
137
120
106		 161
151
130
115		490
440
390
340
280
270
260
250		17
16
15
14		 75
69
65
58		83
77
72
65		 92
85
79
72		100
93
86
78		 109
100
93
85		320
290
270
250
CHECK CABIN RATE OF DESCENT
240
220
200
180		13
12
11
10		 53
47
44
40		59
53
50
45		 65
59
56
51		70
64
61
56		 76
70
67
61		230
220
210
200
160
140
120
100		9
8
8
7		 37
32
28
25		42
37
32
28		 47
42
37
32		52
46
41
36		 56
51
46
40		190
180
170
160
80
60
40
15		6
5
4
3		 21
17
12
6		24
19
14
6		 27
22
16
7		30
24
18
8		 33
27
20
9		150
140
130
110
For INSTRUMENT APPROACH, add 150kg fuel and 3 minutes.
SPEED: Increase will decrease distance. Decrease will increase distance.


Valid for MD-80.

The table is based on:
-Minimum Idle thrust.
-Speeds ECON CRZ, 250kt below FL100.
-Landing weight 55t.
-Straight-in approach. For a complete instrument approach, add 150 kg and 3 min.
FL DESCENT DISTANCE (NM) vs Wind component (kt) Time
(min)		 Fuel(kg) Corr to dist
Add for LW >55
Subtr. for LW <55 t
(NM/t)
Headwind 0 Tailwind
-60 -30 30 60
370
350
330
310
290		92
88
83
77
72		 102
97
91
85
79		112
107
101
94
88		 122
117
110
103
96		131
126
120
112
105		 22
21
20
19
18		310
300
300
300
28		 0.8
0.6
0.6
0.6
0.6
280
260
240
220
200		 69
64
58
53
48		76
70
65
59
54		 84
78
72
66
60		93
86
79
73
66		 101
94
87
80
73		18
17
16
15
14		 270
270
260
250
240		0.6
0.4
0.4
0.4
0.4
180
160
140
120
100		43
39
34
30
24		 48
43
38
33
28		54
48
43
37
32		 60
54
47
41
34		66
59
52
45
38		 13
12
11
10
8		230
220
210
200
180		 0.4
0.4
0.2
0.2
0.2

Valid for B767.

The table is based on:
-Minimum Idle thrust.
-Speeds M.78/290/250kt.
-Landing weight 130 t (with corrections available for other weights.
-Straight-in approach. For a complete instrument approach, add 270 kg and 3 min.
FL M/IAS Time(min) DESCENT DISTANCE (NM) vs Wind component (kt) Fuel(kg)
Headwind 0 Tailwind
-60 -30 30 60
430
410		.78
.78		26
26		111
105		124
118		 137
131		150
144		163
157		490
470
390
370
350
330
310		.78
.78
.78
.78
.78		 25
24
23
23
22		 100
95
90
85
81		 113
107
102
97
92		 125
119
113
108
103		 138
131
125
120
114		 150
143
136
131
125		 460
450
440
430
430
290
270
250
230
210		 290
290
290
290
290		 21
20
19
18
17		 76
71
65
61
56		 87
81
75
70
65		 97
91
84
79
73		 108
101
94
88
82		 118
111
103
97
90		 420
410
400
390
370
190
170
150
130
110
100		 290
290
290
290
290
250		 17
16
15
14
13
12		 50
45
40
36
31
29		 59
53
48
43
38
35		 67
61
55
50
44
41		 76
69
63
57
51
47		 84
77
70
64
57
53		 360
350
340
330
310
300
90
70
50
30
15		 250
250
250
Vclean
Vp20		 11
10
8
6
5		 27
20
13
9
5		 33
25
17
12
8		 38
30
21
15
10		 44
35
25
18
13		 49
40
29
21
15		 290
260
230
200
180
Corrections to top-of-descent distance:
+ 3 NM/10 t landing weight above 130 t.
- 4 NM/10 t landing weight below 130 t.