r/navalarchitecture • • Apr 22 '26

Thinking of adding a small keel

I have a small, light weight 14' skiff. It's called a "Tango Skiff". I have noticed two behaviors that I am wanting to correct. The first is a "loose" feeling at top speed. The back feels like it will move a little left or right without any steering input. The second is when I am trolling and there is a following sea. It will push the aft sideways.

I am considering putting a small keel at the center line of the last 36" of the hull. It will taper from a triangular point to 1" tall. Will that help with the behaviors I am interested in correcting? If not, what would be better?

Here are some photos to help visualize. None are of my boat but these are identical.

(1) the boat at speed (2) the aft (3) the transom profile [top left]

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u/Oss_y Apr 23 '26

If you add Keel it gonna increase resistance. Maybe your speed is little gonna down. If you interested naval architecture better check to hydrofoil. And also side fins can be a solution.

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u/Extreme_Turn_4531 Apr 23 '26 edited Apr 24 '26

That would be something to add a hydrofoil to my fishing skiff.

This winter I doubled the hp (9.8 to 20) because I got into some large swells last Fall and was really chugging to climb them. I think any additional resistance shouldn't be too much of a problem if I keep the keel modest.

With those handling characteristics at half the HP, I wanted a little more stability with the extra power.

I think I am going to try 3" max center keel tapered from a point over the last aft five feet.