Periwinkle was designed and built by me for her owner, John Shrapnel. She is a long, lean boat with very fine sections up for'ard to help her get through a head sea relatively easily, and without making her crew too wet. Towards the end of the video you can see how the fine entry allows the water to peel off the side of the boat rather than flying into the air to be blown over the occupants. The plank laps associated with the glued-lapstrake (clinker) construction also help tremendously in knocking the water down.
Although she is 17ft long, Periwinkle is actually a smaller boat than she looks, and she needs to be trimmed properly to get the best from her - she doesn't like weight in the bow, but all boats are compromises, and in this case the advantages described in the first paragraph make up for the attention needed regarding trim. In the video, John Shrapnel has her longitudinal trim perfect, sitting on the wide and comfortable seat just forward of the expansive aft deck and buoyancy compartment.
|Large aft compartment and buoyancy/storage compartment|
|Room for sleeping, and note how the aft deck hatch is on the centreline, so even if the lid is open, water will not flood in during a capsise|
You can see more information about Periwinkle on my website here and here and here