Question From Readers # 5: Solving for UKC ( under keel clearance)

What would be the approximate keel clearance

You are on a box-shaped vessel about to enter a river. At the mouth of the river where the relative density is 1.018 ton/m? your draft was 5.80 m. What would be the approximate keel clearance in the river dredged to a depth of 8.50 m if its density 1.005

 Formula for the new draft:

New draft = Old draft x Old density
                     New density

                = 5.80 m x 1.018
                      1.005
                = 5.9044
                     1.005
                = 5.87 m

So we are going now to subtract the depth of the river by our new draft to get the keel clearance.

Keel clearance = Depth of river - ship's new draft
                          = 8.50 m - 5.87 m
                          = 2.63 m

If you find this helpful, please click the share button below to share this post to your friends. Sharing is caring...

You Might Also Like

• Question From Readers #1
• Question From Readers #3
• 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
• Calculate Whether The Ship Is Hogging Or Sagging
• 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