TRACK FOR GROUND EFFECT MACHINES

摘要

A track for guided ground effect machines, the track having a machine-supporting portion and a guidance rib and including a passage arranged within the thickness of the said rib to cause the space covering the top of the said rib to be in communication through the said passage with a space defined by the machine-supporting portion of the track and which communicates with the outside atmosphere, whereby redundant lifting forces acting on the machine are substantially avoided.