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Let's design the perfect passagemaker - Lets start ....

T
Truelove39@aol.com
Fri, Oct 31, 2008 10:55 PM

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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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? **************Plan your next getaway with AOL Travel. Check out Today's Hot 5 Travel Deals! (http://pr.atwola.com/promoclk/100000075x1212416248x1200771803/aol?redir=http://travel.aol.com/discount-travel?ncid=emlcntustrav00000001)
JM
John Marshall
Fri, Oct 31, 2008 11:39 PM

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@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?

Plan your next getaway with AOL Travel. Check out Today's Hot 5
Travel Deals!

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@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? > > > > > > Plan your next getaway with AOL Travel. Check out Today's Hot 5 > Travel Deals!