TM 5-820-3/AFM 88-5, Chap. 3
h. Commercially manufactured grates and
ufactured grates are used, the vendor must certify
frames for airport loadings have been designed
the design load capacity.
i. The size and spacing of bars of grated inlets
specifically for airport loadings from 50 to 250
pounds per square inch. Hold-down devices have
are influenced by the traffic and safety requirements
also been designed and are manufactured to pre-
of the local area. Nevertheless, in the interest of
vent grate displacement by aircraft traffic. If man-
hydraulic capacity and maintenance requirements,
3-4
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