Clausen Rolling Platform

[3] Access down the cliffs was made by a cable funicular, taking 11 minutes to descend with a loaded 20 ft long, two-ton missile.

The radar mount tracked the position constantly, the missile launcher moved in discrete steps.

[8] Further tests of the complete system were made from the dedicated missile trials ship HMS Girdle Ness, off the coast of Aberporth and in the Mediterranean around Malta, beginning from the summer of 1957.

[3] The solid-fuel Gosling rocket boosters for Seaslug GWS.1 were produced at RNPF Caerwent in South East Wales.

[11] It was shown off to the public press on occasion, being visited by the Daily Express's science correspondent Chapman Pincher[12][13] and the Duke of Edinburgh in 1959.

Developments in missiles made them smaller and lighter, and no longer requiring to be pointed in such an accurate alignment before launch.

Much of this was due to the shift from beam-riding guidance (LOSBR) to automatic command to line of sight (ACLOS) or similar systems.

These no longer required the missile to be launched on a precise alignment from a trainable launcher, so that they could be gathered into the command beam.