Friday, June 26, 2009

Rich:

Engine Mount, etc. Ipo Kai's engine housing has a nacelle to protect the engine which juts down from the fly bridge. It's like the Makai had before Bruce modified it. It wasn't a problem before the modification. The engine would pivot up to 90 degrees into a long horizontal box in the cockpit. Ipo Kai has a similar set up. In the Makai renovation the motor nacelle got much larger and a hoist was added. The nacelle hit lots of waves, as did the motor, which could only pivot to about 45 degrees. The box in the cockpit had gotten higher and shorter, which made more cockpit room, but a lesser ability to raise the engine out of the way of the waves. Therefore, I think the current set up will be fine and I don't plan to change it except to customize it for whatever engine goes there.

Similarly, I told him to retain the raised hatches, which keep the hulls much drier, even though they stub toes.

We also won't lower the rear crosspiece to catch waves either.

Wayne is checking on the necessary shaft length. We know where the mount is and where the waterline is, so he will measure from that. Most engines from 8 to 50 hp come in 15 or 20 inch lengths. I believe our Yamaha 50 was a 20", which was too short. Our 25" 9.9hp motor worked much better, even though we could only go 75% to 80% as fast. Our fuel economy was about 4 times better which greatly increased our range.

Wayne did say the plastic on the hull windows were weathered an degraded and should be replaced. It thought it was somewhat of a safety issue, since they can be below wave level. I have approved that as of now.

Everyone should feel free to look for a propane cooktop/oven and four stroke motors for sale somewhere. Same with instruments, etc. Savings on the trampolines would help too.

Mike
-----Original Message-----
From: Rich
Sent: Friday, June 26, 2009 6:02 AM

Good call on not modifying the cabin just for a larger tank. I believe this will mostly be a coastal sailer and day sailor. How will we know how long the shaft should be without getting it in the water. I don't want them to do what they did last time with the motor....don't let them create a big transom that catches waves and knocks the boat speed off every time a wave hits it. Much better to have a longer shaft or a float controlled transom or a lowerable transom so at least the motor is only in the way under power.

Rich

2 comments:

  1. Someone needs to remove the personal information from the blog asap!

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  2. Should we make the blog private?

    ReplyDelete