Mr. De la Bèreasked the Minister of Fuel and Power whether, in view of the fact that during the period of hostilities the Government were prevented from making any public pronouncement regarding the development of devices used by the Service Departments or the general progress and improvement in apparatus to counteract fog, he will now make a comprehensive statement on this matter and indicate the methods by which it is proposed to utilise the knowledge gained for the benefit of the public.
§ Mr. W. FosterFog dispersal by heat has been effected at certain airfields during the war by the use of petrol-burning installations generally described as FIDO. A number of these airfields are still available1516W for the diversion of aircraft in emergency, and FIDO equipment is being installed at Heath Row, the projected civil airport for London. I am not at present aware of other possible uses, but I shall keep this aspect in view. Fog dispersal by FIDO can, however, only be undertaken for limited areas, as it involves considerable equipment and a heavy consumption of petrol.