Something similar is illustrated in the USDA's BEEKEEPING IN THE U.S..  Of
course with that setup you still have to climb up and stack the supers once
they are on the level of the bed.  That is, unless they go onto pallets
right on the gate, after which you can use a hand truck to position the
stacks tight.  (This is not easy with full supers - even in a big hot room,
let alone on a flat bed.  A certain amount of skill in handling the weight
(whilst gingerly "steering") is required - especially in tight spots - as I
have learned!)
A power tailgate/lift can obviate much if not all of the lifting-loading,
though.
 
>The beauty of a "Tommy Gate" is that they come in sizes for just
>about any pickup.  I have seen light duty models on small pickups
>such as S-10, Toyota etc..
>
>Frank & Phronsie Humphrey
>[log in to unmask]
>
>snip
>>I think a one ton is about as small a truck as will handle one
>safely,
>>since a power tailgate is a heavy weight right that sits right
>on the >very
>>tail end of the truck.
>
>Allen