Range of lf transmissions using digital modulation
HP Williams, AN Ince - Proceedings of the Institution of Electrical Engineers, 1967 - IET
… Since we are assuming the use of a captive helicopter, this is not too difficult, though the
use of a higher frequency with a correspondingly shorter antenna and smaller earth system …
use of a higher frequency with a correspondingly shorter antenna and smaller earth system …
A review of flight simulator transfer of training studies
HH Valverde - Human Factors, 1973 - journals.sagepub.com
… ; (3) during early flight training, the experimental groups received higher flight instructor
grades than did the control groups; (4) trainees who performed well on the captive helicopter …
grades than did the control groups; (4) trainees who performed well on the captive helicopter …
[引用 ][C] Flight on rotating wings
WL LePage - Journal of the Franklin Institute, 1936 - Elsevier
The original conception of the rotating wing flying machine appears to date back to the
fifteenth century, when Leonardo da Vinci made strange-looking sketches in his notebook, …
fifteenth century, when Leonardo da Vinci made strange-looking sketches in his notebook, …