Re: NASA log fouling -- The Trapper Owners Association Archive Forum

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23/07/03 14:51:33

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Subject: Re: NASA log fouling

Author:
Frank Marsden

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Date Posted: 20/11/04 12:22:17
In reply to: Brian Henry 's message, "Re: NASA log fouling" on 17/11/04 21:59:02

Brian

That is just what I was contemplating with both the Hustler and the Trapper. These have the cockpit drains at the forward end. On the Hustler this was lower than the aft end, and at 30 deg heel the drain was at about water level.
Drainage to the transom would then be ok when upright, but when heeled may not be complete, hence my suggestion of spacing them outboard at the transom.

I suppose that it would be easy to put flaps externally if they got close to the water level, as in dinghy self bailers or transom flaps.

I got a shock once. Dropped the pin down the cockpit drain which disengages gears in the single lever control.

Went below to remove the pipe at the top end, water came in.
Confirmed my view that cockpit drains are a major hazard; open all the time when sailing, probably dubious construction, and large cross section area.

The others?

Galley drain can be closed.
Heads in/out are only opened when in use.
Transducers are low risk.

I have depth transducer in a bonded on grp tube, filled level at the skin with epoxy, and with a little water to get ultrasonic contact. Works ok, unless sea gets rough, when there is occasional loss of reading. Tried cooking oil, but that seemed to limit reading to 20 metres.

Even so, as my boat is laid up ashore until April, I am tempted to reroute galley drain to transom.

Frank

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Replies:

Subject	Author	Date
Re: NASA log fouling	Brian Henry	20/11/04 15:19:45
Re: NASA log fouling -- Feank Marsden, 20/11/04 15:38:14 Re: NASA log fouling -- Brian Henry, 20/11/04 19:53:04 Re: NASA log fouling -- Frank Marsden, 20/11/04 22:43:36