Hi
AS I stated, once COM height exceeds rated distance capacity needs to be down rated; once height of double stacked pallets severely restricts drivers view to the front additional safety procedures need to be activated (greatest risk is loading vehicles from rear through loading docks - forklift has to drive in with view restricted, so there has to be arrangements whereby no pedestrian can be unsighted in front of the forklift); if pallets stored 2 high once height is such that shorter employees cannot clearly see over them - say 1400 mm high - additional safety procedures need to be activated to deal with the blind corners created; once the friction factor between the top and bottom pallet drops below around 0.4 additional safety procedures should be activated (top pallet will slide off under moderate braking); once the bottom pallet comprises a compressible or unstable pallet double stacking in transport has to be prohibited;...