COMPUMARINE
Cedar Strip Small Craft Designs
Since 1989
260 Camino Apolena
Rio Rico AZ 85648-1028
Bus: 520-604-6700
Fax: 520-377-2900
Res: 520-281-2901

Email: 
johnc@compumarine.com

Compumarine has moved from
Everett, WA to Rio Rico, AZ!!!


Home
Up 

 

Congratulations to Edwin Pietersen 
of Amsterdam, Holland

12 Ft. Power Dinghy

Hi John,

As I promised a few months back I am sending you some new pics and a little more info on my 12 foot power dinghy.  Since then the boat has been completed and launched. She is called Carpe Diem, a fitting name for a boat launched on the fifth of May, freedom day (end of WW 2). We have been using her in the canals of Amsterdam, enjoying the sights and sounds. She is stored in the garage and we launch her on the edge of a little lake which is connected to the canals.

As I bought the plans at the end of march last year I started construction of the strongback a few weeks later.  Taking a little over a year to complete and an estimated 400 hours of work! She cost around 1200 dollars to build.

The plans were followed, as much as possible taking into account that some conversions to the metric system were needed.  No big problems building the strongback an the station molds. The trouble began with the gluing together of the strips. I had decided not to staple them to the molds because of the damage to the strips thus I had to clamp them together. After some trial and error I started using some bungee cords to keep the strips tight along the whole length. I used a quick drying wood glue and thus could do one strip on either side and then let them dry while I had some coffee. Each strip took 15 minutes to attach. No snags until the strips reached the end of station mold zero (stem). I made another mold between station zero and one from a rather thick piece of scrap wood which I shaped with a belt sander so the strip-ends would have some support.

A big mistake was trying to cut cost and some work by using plywood for the stem and transom. Next time I will definitely use solid mahogany. Veneering the transom and station mold zero turned out to be more agony than expected. Also the finished result is not as pleasing to the eye as solid wood would have been.

Fiberglassing the hull was not a big problem as I had built some surf-boards years ago. Though I cannot state enough that sanding is the key to a beautiful boat. And sanding is not my favorite pastime.... Also checking the fiberglass for faults would have spared me some irritation because now there is a visible fault showing on the inside of my hull.  Building in wintertime is not a good idea when using epoxy, as I found out. (I knew this but wanted to spend my short summer on the boat not building it)

The skeg and gunwales proved to be the easiest and fastest part of building Carpe Diem.  Both were made of mahogany.

The seats showed on the plans were not to my liking as I was planning on spending several hours at an end on her. I wanted some back support. The benches on the pics are the result of hours of testing, thinking and later on sawing, sanding and epoxying.  But in the end I am happy with the result; light, strong and comfortable seats. She can hold four adults a baby and a dog with ease. Though the benches could have been a few inches more forward for balance. Now we use the space up front for baggage and the dog. By the way the benches are made of mahogany one inch square. They are one foot wide and one foot high.

I hope this info will help future builders of your beautiful boats make them even better.

Greetings,

Edwin Pietersen
Amsterdam Holland

 

| Home | Boat Plans | Boats | About Us | How To | Contact Us | Privacy Statement | Links | Completed Boats |
| The Classic Dinghy | The Power Dinghy | The Yacht Tender | The Fisherman | The Classic Canoe |

This Web Site is maintained by John R Clark, JRC Web Design,  
Last updated March 6, 2008

Copyright 1989 - 2008 © Compumarine, All Rights Reserved