Subject: Re: [harryproa] Wiring and water runs?
From: "Rob Denney" <>
Date: 5/26/2008, 3:17 AM


Initial gen set is Fischer panda 12 kw. weighs 186 kgs (plus fuel
tank), dimensions are h 580 l 700 w 470 It could go under the helm,
but it limits the possibilities with the steering cables. Easy enough
to get around. We were thinking of putting it under the bridgedeck
table (when I get time toi draw it!).

Instruments on a turntable is a good idea, but we will probably have
them up against the salon wall so they can be turned and seen from
inside. The tray on top (with clips) is an excellent idea. Holding
onto, and trying to read a flapping chart is no fun at all.

The wiring will run in either conduits glassed under the bridgedeck,
or along the inside of the beams.

JT, We are still waiting to hear if a complete 110V system is
practical. Owner wants to use househiold appliances as they are
chepaer and easier to fix in out of the way places. Be interesting to
see how this works out. I have forwarded him the 3 wire system, which
looks like the way to go.



On Sat, May 24, 2008 at 11:49 PM, Gardner Pomper <> wrote:
> Hi,
> If the generator is to be up on deck, maybe it would be good to put it in
> the steering pedestal. If you make that wider than usual, then you could put
> all the nav instruments on a turntable type arrangement on top of the
> pedastal and just rotate them to face whichever direction the helmsman
> needs. I am assuming that the steering is by cable, straight down, then
> through the deck and over to the rudders.
> On our cruising boat, we found it very useful to have a tray on the steering
> pedestal, large enough to accomodate a paper chart, so it would be right in
> front of the helmsman, in addition to any GPS plotter.
> All this is off the top of my head. Do you have preliminary dimensions on
> the genset to see if this is even a practical idea?
> Thanks,
> - Gardner
> On Sat, May 24, 2008 at 10:41 AM, Rob Denney <> wrote:
>> G'day,
>> Wiring runs through and under the walls in the cabin, and in conduit
>> elswhere. Details are yet to be sorted as the location of the
>> equipment is not yet finalised. I intensely dislike anything that
>> cannot be got at and fixed if required, so everything will be
>> accessible.
>> It is not premature to talk about anything. Minimising cable runs is
>> important and having the power loss between the gen set and the
>> batteries is (I think, happy to be told otherwise) a better solution
>> than between the batteries and the motors. It looks like the motors
>> on the first charter boat will be under the bridge deck, on each hull
>> with the genset in the middle of the boat and batteries close to the
>> motors (one set in the ww hull, plus the house batteries, one set in
>> the lee hull is the current plan. Long cable runs and weight to
>> windward are definitely a compromise with the motors on the rudders.
>> Regards,
>> Rob
>> On Sat, May 24, 2008 at 8:58 PM, gardnerpomper <>
>> wrote:
>> > Hi,
>> >
>> > I was wondering how the wiring will be run on the charter proa. I have
>> > gotten the impression that the deck floor will be a single foam cored
>> > panel. Will there just be conduits attached to the "top" of the floor,
>> > or along the walls, or will it be embedded in the floor itself? There
>> > is always a tradeoff between keeping it all out of sight, and still
>> > having access to it for repairs.
>> >
>> > On a related topic, I was also thinking about the wire runs for the
>> > genset to the batteries and electric motors. I assume the batteries
>> > will be in teh windward hull, for the ballast, so there will be long
>> > runs to the electric motors in the lw hull. If the genset is on deck
>> > for easy access, then it would seem that you have very long cable runs
>> > for very high amperage circuits. It depends on the specs, but aren't
>> > we talking about 100' or more of 00 or bigger cable?
>> >
>> > I don't know if it is premature to talk about this, but I am curious.
>> >
>> > - Gardner
>> >
>> >

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