[PUP] PPM - Let's design the perfect passagemaker - Lets start ....

[John Marshall]

John,
	That's totally different than the production boats I've seen, where  
the engine sits on rubber motor mounts that in turn rest on top of the  
stringers.

The key question is whether we make it a hard requirement for the PPM  
to recover and function after a rollover? If so, that's going to take  
us down a fairly narrow path, much like those 47 foot surf boats that  
the US CG uses along the bars in the west. Or Dashew's boat.

Scott... I think you're collecting the "must haves". Do we agree that  
this is one, or are we in overkill mode?

John Marshall

On Oct 31, 2008, at 3:55 PM, Truelove39 at aol.com wrote:

> John -
>
> Yes. The PO wisely had the main engine solidly bolted to robust  
> steel angle bed rails atop the fiberglass stringers. No mounts. This  
> is the way commercial boats are built. The small amount of vibration  
> and extra noise is a small price to pay for the knowledge that  
> nothing is going to move from where it belongs. Not sure about how  
> the little Yanmar wing would fare.
>
> Regards,
>
> John
> "Seahorse"
>
> > Can the engine hang inverted from its mounts?
>
>
>
>
>
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