we have

4000 × 500
2 × 80√(5002 + (4 × 802)) = 6562202.

In Chapter XIII., Elevation of Exterior Rail,

E = (WV2
32R/W)g,

and when W =50
V =20
g =5
R =2000

we have

E = (50 × 400
32 × 2000/50)5 = 0.03

And finally, in the latter part of Chapter XIV., we have the formula

D = √([n(d + c)2]
0.7854)A
B,

and making n =200
d =1
c =
A =4
B =3