Over the last few months I have been rowing my Acorn 15 regularly because I enjoy it and I need the exercise. My Acorn 15 rowing boat has a fixed rowing position and I decided that it would be a good idea to try rowing with a sliding seat to get a more complete workout. One option would have been to modify the Acorn 15 by fitting a sliding seat. I wasn't keen on doing this because I didn't want to spoil the look of the Acorn 15. It would also have been a compromise solution.

While these ideas were going round in my head I came across the photo below taken by my friend and fellow member of the Wooden Boat Association of Queensland Ian Primrose.

The photo is of a Classic Derwent Skiff designed by Allan Witt of a company called Row and Sail based in Tasmania.

I liked the appearance of this boat which is configured with a sliding seat as shown. The rowing position can be moved forward and an additional seat added for a passenger if desired.

This version of the Derwent Skiff is 5.5 metres (18 feet) long and should weigh around 38 kg. This is less than half the weight of my Acorn 15.




Wednesday 14 February 2018

First Steps.

The Derwent Skiff is available as a kit of CNC cut parts shipped from Tasmania in a flat-pack. I have ordered the kit but have decided to source the solid timber locally to save on shipping costs. I was able to make a further saving by buying a second hand building frame from a man in Cairns who had already built his own Classic Derwent Skiff. The building frames, also CNC cut, are available new from Row and Sail but the used one saved me some $$$.

The building frame arrived superbly packed and was landed on my driveway - too heavy for 2 of us to carry.


I unpacked the parts and laid them out on the floor in my shed. It looks a bit like a 3D jigsaw puzzle. The parts are easily identified and the instructions on the assembly very clear.


The next photo shows the bottom and sides of the jig joined together. the three sections of the base and sides are joined with butt straps screwed in place. The sides are located along the edges of the bottom by interlocking tabs and then fasted with screws.


The bow section is assembled and then fitted in place on the frame. The fit is very good a judicious use of a mallet was needed to get it snugged down. Screws are used through the bottom board to stop it moving about. The rest of the section frames are inserted  and held firm by screws from underneath and the side.


Had to think a bit more about assembling these pieces at the transom but here it is from the side and behind.



Seven stringers have still to be fitted, three on either side and one along the keel. All this structure is temporary. The hull is assembled over this framework and eventually lifted off. The building frame can then be disassembled ready for the next builder to use.

Here are the stringers resting in place but not screwed on. ignore the frame in the foreground - it is for another boat.





Gone to a New Home.

 Sadly I have parted with my Derwent Skiff. I loved the feeling of flying over the water that came with the long oars and sliding seat but t...