Step (b) D2f '
2f (Dmax & D1)
Step (c) La '
Dmax & D2f
Notes: (1) La should be adjusted to the nearest foot
(2) Computation of La by this method leads to
the probable satisfaction of the float considerations
set forth in the first part of this table. To be
sure that the float is fully satisfied, the design,
when completed, should be checked by the NAVFAC
TRACKS program to obtain an accurate calculation of
Arc length and central angle, corresponding with
the degree of curve Dn for an arc (n):
The central angle from the T.S.C. to any P.C.C.
2n = 2n-1 + )n .... or ....
Ln & 20
2n ' 3.8197E %
(D1 % Dn)