You guys missed the boat (literally, LARC 60). Us watercraft types in the Army Reserve carried cots, potta Johns, BBQ grills and fishing poles along with the regular gear(and ice chests filled with "after hours" refreshments, for those so inclined).
On one movement back to the LARC park, we had "intermittent engine noise" right beside the Jacksonville Landing. So we had to stop and let the engines cool. Being a non-imbibing, married man, my post was to guard the LARC 60s (yes two of them in case there was an 'emergency' with the "stricken" one) while the rest of both crews looked for assistance at the local Hooters.
Funny how the noise cleared right up after that.
Kenny in Florida