Seaslug missiles are tested from the HMS Girdleness.
Location Unknown / Unclear.
LS. HMS Girdleness in mist fitted with Seaslug missiles. MS. Ship as one of the missiles is fired, pan up with missile while it seeks out and destroys target. The wreckage falls into sea. MS. From HMS Girdleness as Seaslug takes off, pan up with missile.
Date found in the old record - 04/12/1961.