How To Determine Whether The Ship Is Sagging or Hogging

The forward draft of your ship 36' 04" and the after draft is 40' 02". The draft amidship is 38' 08". Your vessel is:


SOLUTION:

Step 1. We have to get the mean draft. Let us add forward and after draft.

36' 04" + 40' 027" = 76' 06"

And then divide the sum of the two drafts by 2.

76' 06" ÷ 2 = 38' 03" is our mean draft.   

Step 2. Let us analyze whether our ship is in hogging or sagging condition.

By the given drafts forward and aft, the waterline amidships should be at 38' 03". However, the actual draft at amidships is 38' 08". Therefore, the vessel is sagged.

        

The vessel is sagging

You Might Also Like

• Question From Readers #1
• Question From Readers #3
• Question From Readers #5
• Question From Readers #6
• Question From Readers #7
• Question From Readers #8
• Question From Readers #16
• Question From Readers #17
• Question From Readers #18
• Question From Readers #19
• Question From Readers #20
• TPC Formula
• Change Of Trim
• Find The Initial Metacentric Height
• Moment Of Statical Stability 
• Allowable Increase In Draft
• Height Of Center Of Gravity
• Rolling Period Formula
• How To Solve Ship's New Draft
• Solving Shift In The Center Of Gravity
• Solving For Vessel's Trim
• Finding Ship's New Draft
• Ship's Squat Formula
• Rolling Period Formula In Still Water
• Solving For The Righting Arm
• Reduction In GM
• Find The Height Of The Metacenter Above Keel
• Finding Displacement Of A Vessel