Page 192 - Theory and Design of Air Cushion Craft
P. 192
Dynamic stability, plough-in and overturning 175
Fig. 4.41 The overturning of a hovercraft model recorded by cine camera.
slamming would lead to the skirt being damaged, engine mountings destroyed and
people injured. This same phenomenon has occurred on a number of other Western
and Chinese domestic ACVs in the mid 1960s to 1970s.
Similar phenomena have also occurred to SES at very high speeds, for
example the US Navy SES-100A at a speed of over 70 knots. But in general it
is seldom experienced. The plough-in of an SES down wave will be described in
Chapter 8.
On smaller craft, with which the second author has considerable experience, the
trimming moments generated by payload movement (i.e. passenger movement) can
