[madsailor]

Walter recommends 30 wt non-detergent oil, but you can use Rotella 30wt heavy duty oil.  My PO used 90wt gear oil.  Made it quiet, though.

Bob

[madsailor]

Oops, I must have had that discussion with someone else! BTW my last boat's name was “Inertia”.

Bon

[madsailor]

Hi Greg,

Let me see if I can find pictures of the installation – it's currently uninstalled because I don't need it on Long Island Sound. 

Here's a link on my blog. http://thesailinglife.blogspot.com/2009/11/georgetown-south-carolina.html   I like the idler pulley idea – right now, the alternator rotates at about 10x the prop speed – necessary when sailing, really fast when motoring.  I'll have my friend make me an idler.  The pulley on the shaft is split – so it's easily removable. 

I've estimated that the power generated by the shaft is up to 16hp at full steam (or full sail).  That's enough for the job.

Bob

[madsailor]

Tor and I have discussed this ad nauseam – in a friendly way, of course.  I know there's an attraction to the latest and greatest flippy flappy propellers giving you the extra boost of speed. 

But consider this:  Moving parts break.  Moreover, when they do break it's likely to be the very worst time.  Things under the water that move will be expected to break sooner rather than later for so many reasons, not the least of which is that humans are very, very good at 'out of sight, out of mind'.

There are many advantages to a fixed prop – mine, I believe, is a LH22-13, but I could be wrong.  It's close to that.  22″ diameter, 13 pitch.  Left hand.  Since I have the hydraulic transmission (the velvet drive) which has no problem at all rotating (and in fact can't be locked without an external brake), I have rigged an alternator that I can attach with a large pulley on the shaft and belt to generate up to 9 amps continuously at a steady 5.5 knots.  True, I lose about a half knot when it's running, but there's no spinning propeller above my head and I need the power when under sail, not when motoring or anchoring for the autopilot and stuff.  This rig charges the batteries, runs the electronics and keeps the beer cold. 

So that's my two cents.  If you're going far away, your flippy flappy prop may do just fine.  All the way around the world, in fact.  But if it does fail you could very well be screwed.  It's a chance I personally won't take. 

Bob

[madsailor]

Got it.

[madsailor]

Hey, Jack, how has this parting out been going? I’d love raw water pump(s), and other stuff.

Let me know.

Bob

[madsailor]

It is a fuel shut off solenoid.  You can remove it as long as there is a shutoff before the filter.

Mine failed and that's what I did.

Bob

[madsailor]

Seems to work.

[madsailor]

You have a link?

[madsailor]

If you have subscribed to the site then yes, every email.   You can change that in your settings, I believe.

Bob

[madsailor]

I doubt that.  The censoring, that is.

[madsailor]

Not only that, but it won't send the server into a tizzy.  Rest assured, I'll do that the next time…

[madsailor]

We're working on that. Sorry.

[madsailor]

The deck is cored with balsa and plywood in places. The hull isn't cored.  Moisture could be in the laminate especially below the waterline.

Bob

[madsailor]

I'm not sure of the difficulty you had.  Here's my sink drain thing with the inlet for the shower drain – it removes another through hull and it's a standard double sink drain with dishwasher drain.

Bob

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