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Building Mark V 20

Turning the hull

Before turning the hull, it was set on blocks and the temporary framing and strongback was disasembled.

Two-by-fours were screwed to the main bulkheads at the shear for stiffening. A two-ton come-along was used to lift the side of the boat. It was attached to an overhead beam, and to clamps on the side of the boat at the two main bulkheads. Clamps were put on the other side of the boat, and it was lowered to a piece of 3/4" plywood set on two beams, using a jack and blocking. A lever was used under the plywood to slide the boat sideways as it was rolled over.

As the side was lifted, the hull was slid sideways, untill the balence point was reached. Then, the hull was held in place while the come-along was changed to go under the bottom of the boat. The boat was then lowered untill the skeg could be put on blocks, and then it was levelled using a jack and blocking.
The whole process took just over 3 hours with two people.

View from underneath

Resting on its side

Lowering with jack and blocks

Starting to lift hull

Lifting hull stern view

Starting to lower hull

View from above


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