Swinging Radius at Anchor Calculator



US POWERBOATING   Swing Radius at Anchor Calculator
 

This calculator is designed to calculate the swing radius at anchor. 

 



Knowledge of the Swing Radius of a Boat at Anchor. A easy way to estimate the swing radius of the boat is to add the length of the rode to the overall length of the boat.  The swing radius will always be less than this.  For fun, a more accurate determination can be made by using the following equation:

Swing Radius =
LOA +  [ (Rode )2 - (Depth + Freeboard )2 ]1/2


Swing Radius at Anchor Calculator
   
1.  Enter the overall length of the boat (LOA): 
  
2.  Enter the length of the Rode ( anchor line ): 
     
3.  Enter the depth of the water over the anchor:   

4: Enter the distance from the deck at the bow
pulpit to the water ( freeboard ):     


  
  

The values determined from this calculator should be used for educational purposes only.  This calculator should not be used in determining the suitability of purchase, charter or passage on a boat.  Instead the manufacturer should be contacted to obtain the boat's characteristics.  The results of this calculator should not be relied upon for navigational purposes.  US SAILING and its members assume no liability for the information presented on this website.  The user is responsible to check the validity of all information.