Captain Turner. Click for full image. image credit: Mike Poirier/Daily Mirror, 24 June 1933. |
![]() A younger Turner. Image credit: Mike Poirier. |

| War experience has shown that
fast
steamers can considerably reduce the chance of successful surprise
submarine
attacks by zigzagging -- that is to say, altering the course at short
and
irregular intervals, say in ten minutes to half an hour. This
course
is almost invariably adopted by warships when cruising in an area known
to
be infested with submarines. The underwater speed of a submarine
is
very slow and it is exceedingly difficult for her to get into position
to
deliver an attack unless she can observe and predict the course of the
ship
attacked. |
