In addition, every care shall be taken to ensure that the springs of the bogie or axle nearest the
loading or unloading point are not fully compressed (this requirement is not obligatory).
In summary, only the lowest of the values given under (a), (b) and (c) is to be used.
The following practical information is given in Annexes H and L to R of document AC/15-D/357 for
each type of flat wagons in the categories 3 to 10:
The maximum load per axle for wheeled equipment that can be loaded without buttressing the
wagon overhang. The overhang length is the overhang of the wagon chassis, buffers excluded.
The maximum load per metre of bearing track length of tracked equipment. The overhang
length is the wagon chassis overhang, buffers included.
Military equipment whose load per axle (or per metre of bearing track length) is equivalent to or
less than those in the columns mentioned above may pass from one wagon to another, or from
the ramp (or platform) to the wagon, or vice versa, without buttressing the wagon everhang.
If the weight per axle (or per metre of bearing track length) is greeter than those mentioned
above, while being less than the permissible load for the wagon, end-on loading or unloading
may only be carried out after buttressing the wagon overhang.
Remarks on wheeled equipment with concentrated group of axles (*):
End loading and unload and unloading of such an equipment, without buttressing the wagon overhang, is only allowed if
the resultant of the axle group unit load does not generate a moment more adverse on the wagon overhang than the
moment generated by the permissible load for a single isolated axle in accordance with column "w", Annexes H and L to
R of AC/15-D/357.
If some exceptional equipment exceeds the authorized limit according to column owe, Annexes H and L to R of AC/15-
D/357, the railway system when drafting the sheet book of sketches will indicate under heading 19 that the equipment
must not be loaded without buttressing, in one wagon category, either on all wagons of all railways system or on wagons
particular to the railway system(s) concerned.
(*) Concentrated group of axles: Assembly or et least two axles, whose total load must not exceed the reference single
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