new design, 15' cat ketch
Posted 28 July 2011 - 02:01 PM
Posted 14 August 2011 - 06:10 PM
Posted 21 October 2011 - 07:26 AM
even though I haven't posted here for 9 weeks. Have been working on the inside of the boat, and it is slow and picky (and I had some pleasant interruptions). Bench tops are on and I am close to doing the decking, but there is a lot of small things to do. I may manage to finish all but the flooring before the really cold weather sets in, but maybe not. Centerboard, rudder and spars I can perhaps do in the basement over the winter, and I have many months to sew the sails. The floorboards will probably have to wait for the spring. Keep checking http://176inches.blogspot.com.
Posted 24 November 2011 - 05:29 PM
Any comments and advice welcome!
Posted 01 February 2012 - 11:25 AM
Since my last post I have made the centerboard, rudder, tiller, yards and sails (check out http://176inches.blogspot.com). What remains is the masts and oars, which I hope to do this month, then the floor and finish work on the insides and decking, which brings us to this:
My original plan was to have removable floorboards with the oars stowed below (thanks due to Francois Vivier for the inspiration). I now have my doubts both about oar stowage (why not stash them against the bench seat risers? easier to get to, and I won't have to cut notches in the frames under the floor) and about floorboards. Why not have a permanent, watertight plywood floor instead? It's not too late yet!
The way I see it, floorboards let any water drop to the bilges (no splashing around my ankles) from where it can be pumped later and dry safely, since the gaps between the boards allow for air circulation. A permanent ply floor needs inspection ports (at least six of them, actually, given that the sub-floor space is divided by frames and centerboard trunk) to make sure water does not accumulate and cause rot.
Posted 01 February 2012 - 11:38 AM
Posted 22 April 2012 - 05:10 PM
I didn't post for almost twelve weeks, but I've been busy. The boat is now built, varnished and painted, with only a few details left plus the running rigging. Here it is on its new trailer. Go ahead, tell me with a straight face that she's not a beauty!
(PS: I had trouble appending the photos last night, here they are)
For more details, check out http://176inches.blogspot.com
Posted 21 May 2012 - 06:37 AM
- After retrieval I found the leak, and it's through the joint between CB trunk and garboard. Nothing that some nails, epoxy compound and caulk won't fix. Unfortunately the supposedly watertight buoyancy compartments also took on some water, so I have to dry them out and seal them with caulk this time. Clearly epoxy compound leaves invisible holes for water to come through.
- Rigging her is a pain, and a lot of things can go wrong. It takes two people to do it. On a calm day she could be rigged at the dock, but since the mizzen partner is also the rowing thwart, I would need a motor, which I don't intend to get (yet, anyway).
- She rows very well, but the high sides and nine-foot oars mean she is not a real row boat.
- She is very dry (well, except the leak anyway ), weatherly, stable and stiff. She has very little leeway. Also a slight weather helm, which is exactly how I designed her.
- She can really fly on a moderate breeze.
- The tacks, and especially the mizzen one, need to be tightly hauled down. I had been warned many times in books and web articles, but I didn't realize that the consequence would be inability to tack.
- The masts, although slender, performed perfectly well, with no perceptible bend. I can't vouch for them in a much stronger wind, but I am very pleased with them.
- I need to clearly label yards and sprits so I don't repeat stupid mistakes like I made on first launch. On Sunday I painted the tips of the mizzen yard and sprit blue. Easy to remember, since Blue at the MIzzen is the last one in Patrick O'Brian's series of nautical novels (of Master and Commander fame).
Posted 24 May 2012 - 06:35 AM
Posted 25 May 2012 - 08:52 AM
Given what iknow about epoxy, water should not penetrate. You must have had a void or hole or something similar.
Posted 25 May 2012 - 10:11 AM
The similarity to the CS is not accidental and I credited B&B for the inspiration. But it is more clearly influenced by the Lapwing (also by B&B ). It has a rounded cross-section (I need to post a photo of the transom) with a total of 8 strakes (4 per side). Other influences include boats by François Vivier and John Welsford and the Iain Oughtred Caledonia Yawl. My boat has more freeboard than most of the ones I mentioned and also 50 lbs of lead ballast on the keel batten.
The rig really is dinstinclive (or maybe crazy). I did a couple of Google searches and couldn't find a single example of a cat ketch with two sprit-boomed standing lugs. Welsford's Houdini has the same type of sail but only a single one. It's finicky to set up but it sails very well, as long as the tack downhaul is nice and tight.
Chris: Have you finished your Caravelle?
Posted 25 May 2012 - 03:21 PM
Chris: Have you finished your Caravelle?
No, I was painting the hull and discovered a warp in my centerboard case which broght me to a stand. Then life in its insensitive fury dumped on me a bit and sucked up all my free time. I've nearly come to the conclusion that I should cut the case out of the boat and fix my issue. If I did that I could add in a few mods of my own design that occured to me after its installation of the case. So anyway another year on the stocks it seems.
Posted 29 May 2012 - 05:45 AM
Posted 06 June 2012 - 01:58 PM
BRS 15 "Mysz"
Posted 30 July 2012 - 05:21 AM