s/v Kaimu Wharram Catamaran

Vessel Name: Kaimu
Vessel Make/Model: Wharram Custom
Hailing Port: Norwalk, CT
Crew: Andy and the Kaimu Crew
About: Sailors in the Baltimore, Annapolis, DC area.
20 January 2018 | st marys, ga
12 January 2018 | st marys, ga
02 January 2018 | st marys, ga
01 January 2018 | st marys, ga
30 December 2017 | st marys, ga
26 December 2017 | st marys, ga
26 December 2017 | st marys, ga
23 December 2017 | st marys, ga
21 December 2017 | st marys, ga
20 December 2017 | st marys, ga
19 December 2017 | st marys, ga
13 December 2017 | st marys, ga
12 December 2017 | st marys, ga
03 December 2017 | st marys, ga
02 December 2017 | st marys, ga, earth
02 December 2017 | st marys, ga
01 December 2017 | st marys, ga
25 November 2017 | st marys, ga
20 November 2017 | Gulfport, Mississippi
18 November 2017 | Panama City Beach, FL
Recent Blog Posts
20 January 2018 | st marys, ga

Into the Monastery

Every once in a while I will look back at this blog of a year ago to see what I was doing then. I was wondering what the weather was like. It turns out it was milder, no surprise. I was working on the exterior of the boat and building the outrigger canoe.

12 January 2018 | st marys, ga

Bon Voyage Crawdad

The cold snap, which is the coldest weather I have experienced down here in St Marys seemed to persist longer than forecast, about a week. It has been freezing overnight and most of the mornings, temperature going down to 28 on successive nights. This is nothing compared to what people up North are [...]

02 January 2018 | st marys, ga

The Penguins Have Us

The coooold snap that is freezing us to death is only affecting the Keys a bit, maybe ten degrees less, so 50‘s and 60‘s instead of 60‘s and 70‘s, or 70‘s and 80‘s. The Keys and Bahamas are where to be in the dead of winter.

01 January 2018 | st marys, ga

Happy New Year Chart Wrap Up

It is Sunday, New Year's Eve Day, and I have come down with a cold. My chart work is finished. I can't imagine going outside to work on the hull bottoms now. I may run out of paper towels to sop up my runny nose.

30 December 2017 | st marys, ga


When THE COMPUTER GUY was talking to me about running shell scripts to convert old charts I had mentioned I liked to manually crop each chart and save it from the image manipulation program. Every chart. He looked at me funny. The shell scripts are ways to do a lot of that manual data processing and [...]

26 December 2017 | st marys, ga

Sir, Render

The procedure to convert old electronic charts in the tiled .pcx format to charts that newer nav programs can use involves bulk processing with shell scripts. The shell scripts I needed to use are located in a compressed archive called pcx2tif.


13 May 2017 | st marys, ga
Capn Andy/Warm Spring
The punch list for getting the rig ready to restep the mast included torquing down the beam mounting bolts and installing the chainplates. It was important to check the beam mounting bolts because the rig pulls on the hulls and if the bolts are loose the hulls can become canted. Some of the rigging cables are cut to fit and would therefore be an incorrect length. The result would be finding out later that the beam bolts need tightening, and whoops!, the sailing rig doesn’t fit anymore.
It took 2 days to mount the chainplates, way longer than I expected. One problem was a heat wave, hitting 98 on successive days. The chainplates have bolts that pass through them, then through the hull skin, and are secured with nylock nuts inside. This means a lot of climbing up on deck and then down in the hull to hold the nut with vice grips or a wrench, then going up and down outside to turn the bolt and tighten it.
Each bolt in the chainplates is a unique length. Some are passing through several backing pieces of wood, some are passing through a stringer, and all had to be checked for proper fit. My solution was to shove a lot of bolts into the chainplates to dry fit them, then climb up into the hulls and mark in a notebook which bolts are too long or too short. Then go back outside and rearrange the bolts until all were the right length.
Next was a trip to the hardware store to purchase 3/8-16 stainless steel nylock nuts, after spending considerable time looking for the ones I took off not that long ago. When the chainplates were removed, they took with them some of the glass surface of the hulls and some bedding compound, probably 5200. This all had to be ground off the chainplates. I found using the multitool with a scraper blade removed the most material the fastest, then a quick clean up with the angle grinder and flap disk made the chainplates look as good as new.
Carefully keeping the bolts in order and not mixing them up, Bed-it butyl caulking was wrapped around the bolts just under the head, then around the shank after they were inserted through the chainplate. Next came running up and down, in and out, putting fender washers and nylock nuts on each bolt, tightening it, then moving on to another.
The photo is of the starboard upper and lower shroud chainplates. Aft of them is a chainplate for the running backstay.
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