MIL-HDBK-1005/6

) = Circular offset from tangent

X = X coordinate of position, measured from entry end of switch

R = Radius of curvature

2

= Central angle of arc

2 = sin-1 X

R

) = R - R(cos 2)

2.2.5.3

Linear Offset Computation.

Variable Definitions:

b = Desired distance between rail centerlines at entry end of

tongue.

Y = Vertical offset

Y = ax + b

At X = 0, Y = b

At X = L, Y = 0

Solve for constant -a compute each required offset -Y.

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