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unmanned flight


Unmanned flying ambulances using ducted fans for efficiency

Ducted fans are an efficient way to power flying vehicles, but the devices remain largely unproduced because of problems with the control and reliability of their mechanisms. Most flying machines suffer from teething pains like this when they are still in their infancy. Jet turbines are a relatively new technology compared with many other combustion engines, but they see wide use because of their reliability and very high power output, despite not being terribly fuel efficient. Likewise, despite being difficult to control without complex ... Read more →

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