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Baba Centre of gravity

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Baba Centre of gravity

From: <lists_at_collisters.com>
Date: Thu May 04 2006 - 13:58:19 PDT

Thanks for the insight Jack, I would normally have the liferaft at the rear
of the boat and the tools ashore, Also I plan to remove both anchors from
the bow when on long passages offshore.

 

I mocked up the above picture to see where about 16ft aft of the bow would
be, it's only rough, but it shows the pivot point being quite close to the
turn on the keel/forefoot. I wonder how Bob Perry's calculations are done
for CG, i.e. with/without anchors, full/empty fuel tank etc. I have read
that most stability curves are worked out on impractically bare boats and
displacement is never realistic.

Anyway, I don't want to go on about this, but I would recommend a decent
prop on the stem before removing the front chocs.

 

All the best,

 

  

Paul C

S/V Lady Stardust, Liverpool UK

www.lady-stardust.co.uk

 

 

-----Original Message-----
From: owner-baba-l@ballreich.net [mailto:owner-baba-l@ballreich.net] On
Behalf Of Jack Webb (WebbWebs)
Sent: 04 May 2006 20:04
To: baba-l@ballreich.net
Subject: Re: [Baba-L] My Baba fell over today

 

At 140-150# per 100 ft of 3/8" chain, that's 340-360#, plus 70# for

the two anchors. Another 100-200# for the inflatable, tools, etc.

gives you at least 600# of weight on the bow. I would think this could

have an effect on CG. While it's difficult to do much else with the

anchor chain, it makes one think about additional forward storage,

doesn't it? I tend to use only about 50 ft or so of chain leader on a

nylon rode and store additional chain aft for use in very heavy

weather. Anchoring techniques, however, is not a debate I wish to

start here.

 

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Received on Thu May 4 13:59:14 2006

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