Shows by means of measurements in balloons that ascending currents exist which should make soaring flight successful, independent of current or ground.
Measuring wind structure
Windgefugemessungen im Freiballon zum Problem des gelandefreien Segelflugs
Luftfahrt ; 29 , n 10 ; p 157-159
1925
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Deutsch
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