MIL-HDBK-1005/6
Table 2 Sample Curve Composition
Item
Computation (partial)
Reference
Dmin = 19.0986E (end of switch curve)
Figures 6
Transition
Given:
Dmax = 70.0000E
and 7
curve
(inside or
G = e = 30.000 ft.
control):
La = 94.000 ft.
f = 18.820 ft.
Average float capability of crane 0.50 ft. in
either direction.
Number of
N = 10
arcs
70.000
19.0986
Degree of
' 29.2789E
D2 ' 24.1887 %
arc No. 2
10
70.000 & 19.0986
Degree of
' 34.3690E
29.2789 %
D3
arc No. 3
10
9.4 x 24.1887
Central
' 2.2737E ' 2E 16) 25))
)1 '
angle arc
100
No. 1
9.4 x 29.2789
Central
' 2.7522E ' 2E 45) 08))
)2 '
angle arc
100
No. 2
2s = 3E 49' 11"
Figures 7
Central
angle to
and 8
S.C.T.
21 = 3E 49' 11" + 2E 16' 25" = 6E 05' 36"
2n for arcs
to P.C.C. 1
22 = 6E 05' 36" + 2E 45' 08" = 8E 50' 44"
2n for arcs
to P.C.C. 2
X7 = 74.671 + 104.689 (sin 29E 47' 02" - sin 24E 38'
for P.C.C.
21") = 83.028
7
Y7 = 13.121 + 104.689 (cos 24E 38' 21" - cos 29E 47'
02") = 17.418
51
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