On Wed, 01 Feb 2012 18:32:54 -0800, "Paul Hovnanian P.E."
wrote:

Wayne.B wrote:

Is There a Natural Gas Powered Boat In Our Future?

Safety issues? Make sure you ventilate the bilge before starting.

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It turns out that natural gas is lighter than air which makes it a
great deal safer than propane on a boat. I still think it will be a
long time, if ever, before we see it as a propulsion fuel on
recreational boats.