[Cold Heat]

packed it with explosives

A open dump truck would be the last thing to use to hide anything.

But, whatever..............................................

[ahadams2]

actually a number of years ago the IRA used dumptrucks which appeared to be full of sand to launch artillery type rockets at a few places: the rockets and associated timing and ignition gear were embedded in the sand at a precalculated angle so all the driver had to do was park in the right place, facing the right direction, and then get out of there before the timer started the rocket's ignition sequence.

then of course, if one considers tamping and ballast, one could also place a large quantity of explosive with appropriate detonators and so forth on the bed of a dumptruck and use metal or plywood sheets to cover it such that the sand on top of it all would ac as tamping to focus the blast in a particular direction...

oh yes, all sorts of interesting things one can do with dumptrucks....