Mobile bridge constructional units suitable for transport to site by helicopter have two mirror-image units hinged together and folded to present minimum surface area to rotor downwash

摘要

The mobile bridge may have several constructional units hinged together. Individual modular bridge elements are suitable for transport to site by a heavy-lifting helicopter. A typical bridge element have two mirror-image units hinged together and folded to present a minimum surface area to the rotor downwash.