For those BP Tanker specialists (A) .... what was special about the Valour and the Courage ???? ... I know but do you??
Barnsey (==D)
Barnsey (==D)
More or less right, It was a sled, somewhat like Donald Cambells "Bluebird" jet boat with a cross beam at the front with a foot on either side for stability. At the rear end of the centre beam was a metal scoop which shot a jet of water vertically in the air by which the following vessel astern could steer when in poor visibility.I seem to recall that the thing towed astern was a sort of sled. This created a wake which showed up clearly to the vessel following.