The requirements of this Chapter are applicabie to the design of undercarriage units for military rotorcraft and, where relevant, to the rotorcraft as a whole.
It is generally assumed in the requirements that each unit of a wheeled rotorcraft has one wheel and a shock absorber but the requirements apply equally to units having two or more wheels per unit except as stated in Chapter 301 para 4.
The requirements apply also to units having skids, skis, or floats as well as or instead of wheels on Appropriate Surfaces (see Leaflet 300/1).
T'he requirements also apply, with special variations, to structural spring undercarriages (see also Chapter 301 para 10).
Special requirements are also given where relevant for:
(i) operation from ships,
(ii) operation from other surfaces (see Table 2 and Leaflet 300/1).