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Calculate The Deflection Angle For Spiral Curve:
 
Calculation:
Designer/Checker:
 
Input:
 

 
Average degree of spiral (SI - deg)
Length of spiral (LS - ft or m)
Chord Length (L - ft or m)
   

     
   
   
Output:  
 
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Deflection angle (A) =
 
 
 



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