Colour photograph of a Navy ‘Wasp’ helicopter taking off from the Decca HIFIX caravan at Aird, Cornaigmore, in 1970. HIFIX stations were located at several spots in the Hebrides for relaying messages to/from survey vessels at sea, which were recording the topography of the ocean floor. The Navy had sent personnel ashore by helicopter to lay a cable from the mains electricity suppy to the caravan, in response to a complaint by the occupier of the house, Mr A Campbell, about the noise made by the caravan’s generator.
