[TheForge] Way off topic: boat dock

Peter Hirst saltydog335 at aol.com
Thu Mar 27 23:44:11 EST 2008


The drum will float the weight of its volume in water (440 is about right) 
less the weight of the drum itself (maybe 40) BUT that is the formula for 
exact neutral buoyancy:  that is, it will float, but with the highest point 
of the drum exactly at water level.  You will probably want about half the 
drum above the waterline, so figure to float more like 200 pounds per drum.

Keziah
----- Original Message ----- 
From: "Bob Ehrenberger" <eforge at centurytel.net>
To: "theforge" <theforge at mailman.qth.net>
Sent: Thursday, March 27, 2008 11:34 PM
Subject: [TheForge] Way off topic: boat dock


> I'm planning on building a boat dock this summer and was wondering if any 
> of
> you knew how much flotation you get from a 55 gal drum?  I have several
> available but don't want to over kill it too bad if I can help it. The way 
> I
> figure it 55 gal of water would weigh 440 lbs so each drum should hold up
> 400 pounds. Does this sound right to you?
>
> Robert Ehrenberger
> Shelbyville, Mo.
> eforge at centurytel.net
>
>
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