Explain the procedure of curve setting by method of offsets from long chord

Explain the procedure of curve setting by method of offsets from long chord
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1 Answer

Answer :

Procedure:

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1. Divide the long chord into an even number of equal parts say 8,10,12 etc.

2. Set out the offset as calculated from the formula 


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and obtain the required points on the curve. The curve being symmetrical along ED, the offset for the right half of the curve will be the same as those on the left half side. 

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