Metadata
Author: WikiMatrix
Data
English[en]
After protracted development including extensive wind tunnel testing of the design (especially of the T-tail which was tunnel-tested for 375 hours), the first prototype flew for the first time on October 27, 1972; a second prototype took to the air on December 15 the same year.
Dutch[nl]
Na lange testen in de wind tunnel (Vooral de T-staart was lang getest, 375 uur), vloog het eerste prototype op 27 oktober 1972.