Small Boat Design Made Easy


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Small Boat Design:

Small Boat Design, for rowing Boats:




A Boat, if it's to be rowed easily, has it's Bottom as it's Primary Design Element. There are Three Critical Elements we must build into the bottom of the small rowing boat, or it will row like a raft:
1- Forward Rocker:
2- Aft Rocker:
3- Straight Mainline of the bottom:

-The Idea is quite simple actually. Take a pine board about 10 feet or so in length, and lay it on the floor in front of you.
-Next, put some weight on the board in the middle.
-Next, lift one end of the board, and put something Underneath of it, to 'curl' the board upward. Use about 1 1/2 inch spacer for one end.
-Finally, put a spacer three times the thickness of the first, under the Other end of the board.

Congrats! You Got Yourself a BOAT! Get the Nails and the Caulking Out!
Only thing wrong with your line, is that you need to add more weight in the center area of the board, to keep the center section Straight.
No, I'm not Joking, Small Boat Design IS that easy for You to do. Once you Understand the Fundamentals of a set of boat lines, lofting a set of lines for the simpler models is quite easy to accomplish.
The above Principles, apply to most Any Small Row Boat Design you will encounter. Stick with the basic outline:
-Slight Lift Forward to her stem.
-Straight as a whip along her main bottom.
-Pronounced rock aft, to provide that all important Drag Reduction.

These Basic Small Boat Design Elements will serve you Well, whether tackling a Pram, a Sharpie, or any other variation you wish to have row well in small sizes. These principle design elements remain effective for most any flat bottom boat designed for rowing.

Small Boat Bottom Design. Looks Like This:

For Rowing, the well designed small boat has a virtually flat main bottom, extending from the forward quarter back to the after quarter. there is a slight, but steady rise forward, to allow ease of slipping along through the water, and a quick and pronounced rocker to the stern, to provide that all important drag-reduction all rowing boats require.
Now bear with me, my drawing program isn't the Best on the net, lol, but Here's the General idea:

stemstern

As I said, my drawings aren't the best. The stern didn't come out too bad at all, but the bow is a bit mis-leading. The forward rise is just a tad shorter in length than it should be, and it should also look almost like a Straight line as it rises toward the heel of the stem. Overall, the boat in the illustration would row along quite nicely, whether a pram bow was fitted, or if the same set of lines were lengthened to close in to a stempost forward.

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