girder post การใช้

The trunnions were supported by box-girder posts on the sides of the bascule leaves and each set of inside trunnion posts were braced by a girder ran both between them and to the operating mechanism.
The MGB also requires very little maintenance once erected, is air transportable in either standard palletised loads or in partially assembled bridge configurations, and all US components will fit MGBs in use by allies ( except for the launching nose cross girder posts)