TM 1-1520-240-10
6-6-4
Figure 6-6-2. Maximum Package Size (Sheet 1 of 3)
6-6-10. Concentrated Loads.
Concentrated loads are those loads wherein the total
weight of the item is supported by a contact area that is
small compared to the size and weight of the load.
6-6-11. Concentrated Load Limits.
Concentrated loads can be loaded on the treadways and
on the walkway. The treadways aft of station 160 and
ramp extensions are stressed for a total wheel load of
2,500 pounds. The treadways forward of station1 60 and
the walkway can be loaded to a total wheel load of 1,000
pounds. Concentrated loads are not to exceed 75 psi for
pneumatic tires or 50 psi for block or roller type wheels.
NOTE
The above floor loading limitations apply to
the static weight of the item prior to applying
any restraint devises.
NOTE
The minimum distance, in feet, between the
centers of any two adjacent concentrated
loads is determined by totaling the adjacent
loads and dividing by 1,000.
6-6-12. Load limits.
Vehicles exceeding the limitations may be loaded with
the use of shoring, provided that the vehicle weights
remain within the operating weight limits of the helicopter.
In cases where the wheels of a vehicle cannot rest on
both treadways because of a narrow wheel tread, shor-
ing must be used to spread the load over the treadways.
General cargo must not exceed floor pressure of 300 psf.
An easy way to determine floor pressure of various loads
is to divide the weight of the load by the contact area (in
square inches or square feet).
NOTE
Load on pallets supported by the longitudinal
beams or skids resting on the floor can result
in concentrated loads at points where the
beam/skid rests on or crosses floor formers.
The concentrated load can be determined by
dividing the weight of the item by the number
of floor former/skid intersection points or by
the number of locations where the skid rests
