I learnt some interesting facts about the old humble Australian no.5 ½ ton trailer; i never thought to use it as a bath tub or a dinghy!!
Australian Military Trailers for Land-Rovers -REMLR
extract from site.
PS: "Your tax dollars at work" - the No 5 is able to be used as a bath when filled with water, and as a water carrier/tank when fitted with the rubber bladder and hand pump (late 1960's). Some No 5 trailers have had the rear panel cut 'n shut to make a tailgate that drops down and acts as a ramp when the drawbar is elevated... And the award for the most unusual application for the No 5 is--(drumroll)--as a makeshift dinghy! When empty jerry cans are lashed to the drawbar, servicemen can row it - or even use a portable outboard on the rear of the trailer...
Intrigued, we searched the internet and found more interesting news about the good ol' No 5...
(notes from Janes Navy Annual)
In summary, the freeboard is adequate, but the draft--and the "Bar Treads" acting like twin keels-- limit performance to less than 15 knots. A recent RAN appraisal of this design created a stir after extensive 'in theatre' trials conducted off Jervis Bay. It concluded that sea use would be hazardous without the mandatory additions to the CES such as navigation lights, bilge pump, EPIRB, life jackets, etc. In another part it said that neither battleship grey or olive drab had showed any comparitive advantage regarding anti-fouling and anti-corrosion of the No 5 hull. The real meat of the report, however, remains classified at ADI. RAN rumours are circulating that the No 5 appraisals off Jervis Bay, conducted with the participation of the majority of the RAN fleet, revealed hitherto unknown advantages of this trailer-dinghy design. Guided "x" class torpedoes were evaded by 7 out of ten of the trial half-ton trailers on the exercise. In addition, the rumour mill has it that in the first month of the trials, a RAN Captain's resignation was hushed up after a Collins class sub blithely surfaced at night under a lone "SAS modded" No 5 and returned to port with it lodged on the comms tower. This was reputedly the "serendipity" incident that explains how the RAN happened onto the advantage of the No 5's low radar profile. Hence covert RAN long-range Orion deployment by parachute would seem to be a likely and obvious outcome of this No 5 development.