Cameras and Whistles

The forward looking camera (with 72 IR LEDs) camera today. It's big but a perfect color match, i.e. the same white, as the dome camera. Here's a drawing of what it will look like. I was concerned the starboard shroud would interfere with the IR camera but the drawing shows it will clear easily. We'll probably see the topping lift in the aft-looking camera but it shouldn't be too bad.

 Got the Kahlenberg #116 and #117 whistles plumbed together today. The combined sound is great. I'd thought that valves at each whistle's inlet would be required to 'tune' the circuit. It turns out that leaving each ball valve wide-open is perfectly acceptable. I'm leaving the ball valves in as it allows flexibility. The next job is to pull the stack, mount the compressor and mount the whistles.

With the stack off it'll be easier to clear all the silicone out of the wire chase (the one through the salon ceiling and into the stack). To keep water from leaking into the headliner a fiberglass dam will be built around the penetration.

Cameras, Whistles, and Bottom Jobs

Starboard and forward view of mast top with cameras

Met with Jeff, who subcontracts to PL Jones, and planes hulls. He said the fiberglass strands on the Nellie's hull were a result of hydraulization—essentially water washing away some of the surface resin. He can plane the hull with a very shallow cut and that will remove the hydraulized glass and the remaining gelcoat. This will minimize the removal of good glass. Phil will then fill, fair, and apply seven coats of interlux 2000. Phil Jones looked at both the prop ding and the cutlass bearing. He thought a brass hammer could fix the prop in situ and that the wear on the cutlass didn't warrant replacing it.

 Removed the four inspection ports from the fuel tanks. Need to cut the existing 2" fuel fill nipple out and replace it with a 2" stainless deck plate. This will make the fuel ports easier to open and the tanks easier to fill. Removed the pencil zinc plug from the Cummins' heat exchanger.

Nellie uses a 1/2" diameter pencil zinc (these zincs have a 5/16" thread to hold the pencil into the plug). Problem is the brass plug accepts zincs with a 3/8" threads. Need to find/make a brass plug (which has 3/4" thread into the heat exchanger) and accepts our 1/2" with the 5/16" thread.

Designing the mount for the rear view camera. Here's a preliminary. Aft of the mast the camera interferes with the topping lift. So this drawing shows the cameras (yea, two cameras—the second being the forward looking IR) mounted outboard and swept aft of the mast. The 1/4" stainless mounting plate is shown above the 'forward view'.

 Designing the compressor system for Nellie's new Kahlenberg 117. Easiest solution is if a 120V, 1.5HP, 6 gallon, pancake compressor fits into the stack. Then only a 120V 12-2 would have to be run from the engine room. Fingers crossed.