TABLES RELATING TO PARTS I AND II 211 
STADIA REDUCTIONS 
Horizontal Distance 
0' 
10' 
20' 
30' 
40' 
50' 
O' 
10' 
20' 
30' 
40' 
50' 
0° 
100 0 
100.0 
100.0 
100.0 
100.0 
100 0 
16° 
92.4 
92.3 
92.1 
91.9 
91.8 
91.6 
1° 
100.0 
100.0 
99.9 
99.9 
99.9 
99.9 
17° 
91.5 
91.3 
91.1 
91.0 
90.8 
90.6 
2° 
99.9 
99.8 
99.8 
99.8 
99.8 
99.8 
18° 
90.4 
90.3 
90.1 
89.9 
89.8 
89.6 
3° 
99.7 
99.7 
99.7 
99.6 
99.6 
99.6 
19° 
89.4 
89.2 
89.0 
88.9 
88.7 
88.5 
4° 
99.5 
99.5 
99.4 
99.4 
99.3 
99.3 
20° 
88.3 
88.1 
87.9 
87.7 
87.5 
87.3 
5° 
99.2 
99.2 
99.1 
99.1 
99.0 
99.0 
21° 
87.2 
87.0 
86.8 
86.6 
86.4 
86.2 
6° 
98.9 
98.9 
98.8 
98.7 
98.6 
98.6 
22° 
86.0 
85.8 
85.6 
85.4 
85.2 
84.9 
7° 
98.5 
98.4 
98.4 
98.3 
98.2 
98.1 
23° 
84.7 
84.5 
84.3 
84.1 
83.9 
83.7 
8° 
98.1 
98.0 
97.9 
97.8 
97.7 
97.6 
24° 
83.5 
83.2 
83.0 
82.8 
82.6 
82.4 
9° 
97.5 
97.5 
97.4 
97.3 
97.2 
97.1 
25° 
82.1 
81.9 
81.7 
81.5 
81.2 
81.0 
10° 
97.0 
96.9 
96.8 
96.7 
96.6 
96.5 
26° 
80.8 
80.6 
80.3 
80.1 
79.9 
79.6 
11° 
96.4 
96.3 
96.1 
96.0 
95.9 
95.8 
27° 
79.4 
79.2 
78.9 
78.7 
78.4 
78.2 
12° 
95.7 
95.6 
95.4 
95.3 
95.2 
95.1 
28° 
78.0 
77.7 
77.5 
77.2 
77.0 
76.7 
13° 
94.9 
94.8 
94.7 
94.5 
94.4 
94.3 
29° 
76.5 
76.2 
76.0 
75.7 
75.5 
75.2 
14° 
15° 
94.2 
93.3 
94.0 
93.2 
93.9 
93.0 
93.7 
92.9 
93.6 
92.7 
93.4 
92.6 
30° 
75.0 
74.7 
74.5 
74.2 
74.0 
73.7 
Difference of Elevation 
Proportional Parts 
0' 
10' 
20' 
30' 
| 40' 
50' 
1' 
2' 
3' 
4' 
5' 
6' 
7' 
8' 
9' 
0° 
0.00 
0.29 
0.58 
0.87 
1.16 
1.45 
.03 
.06 
.09 
.12 
.14 
.17 
.20 
.23 
.26 
1° 
1.74 
2.04 
2.33 
2.62 
2.91 
3.20 
.03 
.06 
.09 
.12 
.14 
.18 
.20 
.23 
.26 
2° 
3.49 
3.78 
4.07 
4.36 
4.65 
4.94 
.03 
.06 
.09 
.12 
.14 
.17 
.20 
.23 
.26 
3° 
5.23 
5.52 
5.80 
6.09 
6.38 
6.67 
.03 
.06 
.09 
.12 
.14 
.17 
.20 
.23 
.26 
4° 
6.96 
7.25 
7.53 
7.82 
8.11 
8.40 
.03 
.06 
.09 
.12 
.14 
.17 
.20 
.23 
.26 
5° 
8.68 
8.97 
9.25 
9.54 
9.83 
10.11 
.03 
.06 
.08 
.11 
.14 
.17 
.20 
.23 
.25 
6° 
10.40 
10.68 
10.96 
11.25 
11.53 
11.81 
.03 
.06 
.08 
.11 
.14 
.17 
.20 
.23 
.25 
7° 
12.10 
12.38 
12.66 
12.94 
13.22 
13.50 
.03 
.06 
.08 
.11 
.14 
.17 
.20 
.22 
.25 
8° 
13.78 
14.06 
14.34 
14.62 
14.90 
15.17 
.03 
.06 
.08 
.11 
.14 
.17 
.19 
.22 
.25 
9° 
15.45 
15.73 
16.00 
16.28 
16.55 
16.83 
.03 
.06 
.08 
.11 
.14 
.17 
.19 
.22 
.25 
10° 
17.10 
17.37 
17.65 
17.92 
18.19 
18.46 
.03 
.05 
.08 
.11 
.14 
.16 
.19 
.22 
.24 
11° 
18.73 
19.00 
19.27 
19.54 
19.80 
20.07 
.03 
.05 
.08 
.11 
.13 
.16 
.19 
.21 
.24 
12° 
20.34 
20.80 
20.87 
21.13 
21.39 
21.66 
.03 
.05 
.08 
.11 
.13 
.16 
.18 
.21 
.24 
13° 
21.92 
22.18 
22.44 
22.70 
22.96 
23.22 
.03 
.05 
.08 
.10 
.13 
.16 
.18 
.21 
.23 
14° 
23.47 
23.73 
23.99 
24.24 
24.49 
24.75 
.03 
.05 
.08 
.10 
.13 
.15 
.18 
.20 
.23 
15° 
25.00 
25.25 
25.50 
25.75 
26.00 
26.25 
.03 
.05 
.07 
.10 
.13 
.15 
.17 
.20 
.23 
16° 
26.50 
26.74 
26.99 
27.23 
27.48 
27.72 
.02 
.05 
.07 
.10 
.12 
.15 
.17 
.20 
.22 
17° 
27.96 
28.20 
28.44 
28.68 
28.92 
29.15 
.02 
.05 
.07 
.10 
.12 
.14 
.17 
.19 
.21 
18 a 
29.39 
29.62 
29.86 
30.09 
30.32 
30.55 
.02 
.05 
.07 
.09 
.12 
.14 
.16 
.19 
.21 
19° 
30.78 
31.01 
31.24 
31.47 
31.69 
31.92 
.02 
.05 
.07 
.09 
.11 
.14 
.16 
.18 
.21 
20° 
32.14 
32.36 
32.58 
32.80 
33.02 
33.24 
.02 
.04 
.07 
.09 
.11 
.13 
.15 
.18 
.20 
21° 
33.46 
33.67 
33.89 
34.10 
34.31 
34.52 
.02 
.04 
.06 
.08 
.11 
.13 
.15 
.17 
.19 
22° 
34.73 
34.94 
35.15 
35.36 
35.56 
35.76 
.02 
.04 
.06 
.08 
.10 
.12 
.14 
.16 
.19 
23° 
35.97 
36.17 
36.37 
36.57 
36.77 
36.96 
.02 
.04 
.06 
.08 
.10 
.12 
.14 
.16 
.18 
24° 
37.16 
37.35 
37.54 
37.74 
37.93 
38.11 
.02 
.04 
.06 
.08 
.09 
.11 
.13 
.15 
.17 
25° 
38.30 
38.49 
38.67 
38.86 
39.04 
39.22 
.02 
.04 
.06 
.07 
.09 
.11 
.13 
.15 
.17 
26° 
39.40 
39.58 
39.76 
39.93 
40.11 
40.28 
.02 
.04 
.05 
.07 
.09 
.11 
.12 
.14 
.16 
27° 
40.45 
40.62 
40.79 
40.96 
41.12 
41.29 
.02 
.03 
.05 
.07 
.08 
.10 
.12 
.13 
.15 
28° 
41.45 
41.61 
41.77 
41.93 
42.09 
42.25 
.02 
.03 
.05 
.06 
.08 
.10 
.11 
.13 
.14 
29° 
42.40 
42.56 
42.71 
42.86 
43.01 
43.16 
.02 
.03 
.05 
.06 
.08 
.09 
.11 
.12 
.14 
30° 
43.30 
43.45 
43.59 
43.73 
43.87 
44.01 
.01 
.03 
.04 
.06 
.07 
.09 
.10 
.11 
.13 
