Results 261 to 270 of about 51,014 (299)
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Communications of the ACM, 2009
Researchers are improving unmanned helicopters' capabilities to address regulatory requirements and commercial uses.
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Researchers are improving unmanned helicopters' capabilities to address regulatory requirements and commercial uses.
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Air Medical Journal, 2022
A 35-year-old man injured his right foot by slipping down 200 m into a crater on top of Mount Fuji, where some snow still remained. The next day the patient climbed up from the crater with his friend's assistance and began to descend the mountain; he met the Shizuoka police mountain distress rescue team at the 9th station.
Hiroki, Nagasawa +3 more
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A 35-year-old man injured his right foot by slipping down 200 m into a crater on top of Mount Fuji, where some snow still remained. The next day the patient climbed up from the crater with his friend's assistance and began to descend the mountain; he met the Shizuoka police mountain distress rescue team at the 9th station.
Hiroki, Nagasawa +3 more
openaire +2 more sources
2005
First envisioned by Leonardo da Vinci and first deployed in World War II, the helicopter is now a universal icon of modern warfare, a key component of combat planning around the world, and one of the military's most versatile and effective tools. Helicopters: An Illustrated History of Their Impactcovers the development of helicopters from a ...
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First envisioned by Leonardo da Vinci and first deployed in World War II, the helicopter is now a universal icon of modern warfare, a key component of combat planning around the world, and one of the military's most versatile and effective tools. Helicopters: An Illustrated History of Their Impactcovers the development of helicopters from a ...
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Aeronautical journal (London, England : 1897), 1922
SummaryThe present article is an account of some calculations on helicopters.Airscrews have been calculated for different conditions according to two theories: (1) the multiplane interference theory; (2) Glauert's vortex theor). According to both there should be no difficulty in designing a screw to give a good lift at a reasonable rate of climb, and ...
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SummaryThe present article is an account of some calculations on helicopters.Airscrews have been calculated for different conditions according to two theories: (1) the multiplane interference theory; (2) Glauert's vortex theor). According to both there should be no difficulty in designing a screw to give a good lift at a reasonable rate of climb, and ...
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The Helicopter as an Ambulance
Journal of The Royal Naval Medical Service, 1956openaire +2 more sources