Planking

Building a 22 1/2 foot classic cruiser.

Home Which boat? Where to start? Building the frames Building the stem Setting up Longitudinal members Fairing Planking Painting Righting the hull Trailer Engine

 

 

Here's where the fun really began as the hull day-by-day begins to appear. The bottom is two layers of 1/4" plywood at 90 degree angles to the keel. By the transom, I was able to use an entire sheet. In the middle I used 2' wide sections. And up front, it progressively was reduced to 3" foot sections. The sides are single layer of 3/8" put on in two sections, a 14' front and a 10' rear. Due to space limitations, I could not scarf one large piece. The harder front was put on first. Then the rear was put on and butt-jointed to the front. On both sides this resulted in the front section have a middle radius difference of 1/8" from the rear. Microballoons and patient finishing hid this.


Note above the battens held at the proper angle and in place. The chains were not removed until the second layer of bottom was applied. Here's a picture after the last bottom layer prior to trimming, and a picture of us epoxy encapsulating the pieces prior to mounting:


Purple microballoon fairing compound on Douglas Fir plywood is not a pretty site. Here's pictures of fiberglassing the faired hull:



After fiberglassing, we did some more micro-fairing. We were determined to be Clorox bottle smooth.