The diminutive, twin engine test aircraft served its purpose well, first taking to the skies on 3 July 1941 at Baker Dry Lake in California.
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Flight could only be sustained by maintaining a precise angle of attack, but Theodore von Kármán solved the problem by making adjustments to the trailing edges of the elevons.
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On 30 December 1939, Norway sent a purchasing commission to the United States, consisting of a Royal Norwegian Navy Air Service contingent headed by Cmdr. Kristian Østby, and a Norwegian Army Air Service contingent led by Birger F. Motzfeldt.