Anti-Icng Compound Known as "Kill-Frost"
Striking results are claimed for an anti-icing compound, known as "killfrosy" painted on the wings, control surfaces, and propellers of aeroplanes, which has been developed for Imperial Airway.
At a demonstration at Croydon recently the compound was smeared over the vulnerable parts, but condi-ions' were not favourable for an actual test in ice-forming conditions.
While it is not claimed that this method is yet perfect, it is urged that it is efficacious enough in its present form, to justify its immediate use.
The inventor, Mr. J. Halbert, used such a compound to defeat ice incrustation in refrigerating plants. It has other extensive applications:
The compound, as used at present, is an improvement on its original form and it is said that rain or sleet, at the great speed at which an aeroplane encounters them, would not scour the compound off. Although some" might be washed away, there remained a coating which retained its ice-preventing quality.
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