Discussion of refusal of Great Britain and United States to recognize American and British airplanes, respectively, as airworthy on strength of their Department of Civil Aviation and Air Ministry certificates; British distrust of goods made abroad; until all nations agree to use same method of calculation, little hope of arriving at international agreement; relative inspections; pilot's licenses; way out for American agents suggested; Free Trade discussed.
On airworthiness
Aeroplane
Aeroplane ; 35 , n 23
1928
2 Figs.
Aufsatz (Zeitschrift)
Englisch
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