§ 90. Colonel J. R. H. Hutchisonasked the Parliamentary Secretary to the Ministry of Civil Aviation whether the icing and engine difficulties with the Viking have now been overcome.
§ Mr. LindgrenConsiderable progress has been made with the development of modifications to overcome the icing difficulties on the Viking, but further tests, including flight in severe icing conditions, are required before an assurance can be given that the difficulties have been overcome. The engine difficulties have only been encountered when the aircraft have been taking off from high altitude aerodromes in tropical conditions, but they have been eliminated by the latest modifications to the carburation system.