I’ve got the deck reinforcement in. Horrible job, working in a tight space with no room to move my arms and epoxy dropping on me. But it is in. Phew.Continue reading
I thought I’d describe my current junk rigged boat and show some of the design features. The boat is called Owl because it is green (as per The Owl and the Pussycat).
The boat is a 11′ GRP clinker-style boat originally built in the early 1980s for a gentleman to take his kids out in. I suspect it was adapted from a standard hull – probably designed for rowing or fishing. It had:
- A flat centreboard that is a bit far aft;
- A rudder that only just touched the water;
- A standing lug rig that wouldn’t go upwind, with heavy yard and boom that reduced stability and threatened to hit heads.
However it did have a free-standing mast and, without the lug-rig up, was extremely stable. A perfect candidate for a junk rig!Continue reading
Real progress. Got the turning block fixed to the tabernacle:
I’ve made a (rather rough – don’t look too closely) pivot. This has threaded holes so that bolts can be screwed in from either side to avoid making a big hole in the back of the mastContinue reading
I want a cambered sail for the advantages it gives us – better performance particularly close to the wind. There are disadvantages for ocean travellers – the sail can flap about in light winds and swell – but these don’t affect a dinghy (hopefully!).
This is my approach to calculating how to make the sail. There are others, and there may be errors in my calculations – if you spot any please let me know.
If you want to skip the maths there is a spreadsheet that you can plug the basic figures into. The maths is just to explain what the spreadsheet is doing – for me as much as anyone!Continue reading