November 30, 2009
November 25, 2009
November 10, 2009
November 1, 2009
View of the Boatbuilding Shed
Sweeping the roof last weekend to get ready for the rainy season, I saw this unusual view of the boatbuilding shed. Hard to imagine a 25-foot boat in there, huh?
When this is done, I’d like to build a real shop in that spot. Concrete walls, skylights, big rollup door on the street side. 220 Volt wiring for the welder and pressurized air plumbed in. Maybe a small greenhouse on the South side for solar heating and tomatoes. I have an urge to build some small boats next
Side Cleat Reinforcements
A lot of distractions these past few weeks have kept me from doing any big projects, so I’ve been attaching hardware and minor jobs like that.
I was concerned that a hard pull on my side cleats (like tying up with a too-short line and being hit with a large wake) might split my gunwale, so I made these bronze plates as reinforcements. Now, any outward force on the cleat will be transferred down to the hull instead of ripping off the gunwale (I hope). The material is 1/8 inch silicon bronze plate I bought at Alaskan Copper for this purpose.
I made a cardboard template and traced it onto the bronze plate. I cut out the parts freehand on my metal-cutting bandsaw, put them in my bench vise and bent the flanges over on the dotted line with a 5-pound hammer.
I pre-drilled the cleat holes through the gunwale, then clamped the bronze part in place and marked the big hole for the through-hull, then drilled the hole a little oversized.
Clamped the part in place and marked for the cleat mount holes with the drill bit I used to drill the holes in the wood.
Then removed the part and drilled the holes in the bronze, starting with a 1/8 inch bit and working up the the finish size.
I ground down the corners with a 5-inch grinder and 60-grit disk, freehand. Then sanded with the small dual-action sander, down to 220 grit. I’m not trying for a really fine finish here – they will tarnish nice and dark soon enough.
My main concern is that I have three different metals here – zinc from the galvanized cleat, stainless bolts and nuts, and the bronze plate and through-hull. I may look for bronze bolts to replace the stainless. At the least, I’ll put a nylon washer between the stainless nut and the bronze plate. I need to epoxy-seal the bare wood where I drilled the holes before doing the final installation.
Added – I don’t know if this helps, but here is a rough cross-section of the area, and how I think the forces will be transferred away from ripping off that inside 1×2. ![]()
October 4, 2009
October 3, 2009
Pilothouse Paint
Kirby Yellow Gloss paint. I’ll flatten the top coat a little.
Two more coats of this on the outside and two more coats on the inside, and I’ll be able to mount the windows!
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Here’s my original color layout from last January. I may install the rubrail today while waiting for the paint to dry. I wish I could see the boat from this perspective, but the tent is too narrow. |
September 28, 2009
Reflections in Hull Paint
Well, it took 5 coats, but I’m calling the hull paint done. Parts of it are very shiny
Some of it doesn’t look quite as nice but I’ve decided I can live with it.
I added flattening agent to the third coat, which made the paint look very thin so I added very little thinner. The paint didn’t smooth out after tipping, leaving tiny ridges along the whole hull surface. I had to sand it down with 220 grit – 400 wouldn’t dent it. This stuff cures hard! It took 2 more coats to make it look good again.
Sanding the 4th coat with 400 grit:
Stem:
Self-Portrait in Two-Part Polyurethane:
September 6, 2009
60-HP High-Thrust Outboard Motor Comparison
- The first three are 4-strokes. The Evinrude is a 2-stroke.
- All meet the California Air Resources Board air pollution standards.
- The Honda is new this year
- I’m guessing the steering angle of the non-Honda motors are 30 degrees
- The Evinrude is the only one in this list that isn’t a ‘high-thrust’-style motor. High-thrust motors are designed to power displacement boats.
- All of these models come with power tilt/trim
| Honda BFP60A | Mercury 60 hp EFI Bigfoot | Yamaha T60 High Thrust | Evinrude E-Tec 60 HP (E60DPL) | |
| Engine Type | 4-stroke, inline 3-cylinder | In-line 4 cylinder | 4 cylinder | Inline 2 cylinder |
| Weight | 259 | 260 | 248 | 240 |
| Fuel/Induction System | Programmed Electronic Fuel Injection, in-line 3-cylinder SOHC | 2-valve SOHC | SOHC Fuel Injection | Direct fuel injection |
| Alternator Output | 27 Amp (Battery charging power 22 Amp) | 18 Amp (225 watts) | 17 Amp | 25 Amps not dedicated |
| Displacement | 998 cc | 995 cc | 996 cc | 864 cc |
| RPM Range | 5000-6000 | 5500 – 6000 | 5000-6000 | 5500 – 6000 |
| Trim range | -4 to 16 degrees | |||
| Tilt range | 60 degrees | |||
| Steering angle | 50 degrees | |||
| Gear ratio | 2.33:1 | 2.33:1 | 12:28 | 2.67:1 |
| Special features | New in 2009 | Dual Thrust propellers | No oil changes | |
| Easy Dock Steering – 20 degrees additional (needs additional parts) | 195 fewer parts than a 4-stroke | |||
| Rudder angle indicator | low emissions | |||
| Links | Brochure (pdf) | Specs | Specs | Crap Flash Site |
| Specs | Specs |