John B. fired this volley in
:

I had assumed because the design team thought there was no
dirt on a boat :-)
--


Well, John, actually, there's not a LOT of free-flying particulates in
the bilges of your typical all-metal boat. There's just nothing down
there that can generate such airborne waste.

In addition, except for the odd insect, there's not much in the way of
particulates floating around over open water in non-industrialized
countries, like 'Nam was.

I cannot remember ever seeing an engine damaged by airborne matter,
except for airborne shrapnel and bullets.

Lloyd