2023-08-19 00:34:00
2002 Prospects for commercialization of ‘duct-type’ propeller thrusters proven in wind tunnel test performance ‘Flying car’ always appears in science fiction films depicting the future. Even in reality, many people are annoyed by the congested city traffic, and I hope for the appearance of automobiles. However, it is true that it is unlikely to appear in reality easily due to various technical and economic limitations. However, a flying car equipped with a propulsion system certified by the National Aeronautics and Space Administration (NASA) by a private company in the United States is attracting attention as it is scheduled to be put into practical use soon. Original View Icon The US Epiphany Transporter recently announced that it will soon commercialize an electric vertical take-off and landing (eVTOL) flying car, Space.com, a space specialist, reported on the 18th (local time). This flying car flies at a maximum speed of 258 km/h. The noise level is only regarding 55 decibels (dB) at an altitude of 15 m. Considering that the noise generated when an average person has a conversation is regarding 60dB, and when it rains, it is regarding 50dB, so it is quiet. As a result of practicality verification such as a wind tunnel experiment at NASA’s Ames Research Center in 2002, this thruster was proven to produce considerable thrust comparable to that of a jet engine or helicopter-type rotary wing. It also serves to protect the propeller from itself or the outside by wrapping it with a duct. The person in charge of designing this flying car is also a co-author of a related paper published by NASA in 2002. It means that it has been tested and improved over the past 20 years, and finally put to practical use. Michael Mosher, CEO and chief designer of the company, said, “With a field-proven propulsion system and state-of-the-art airframe design, I believe it will fly as expected. “he said. This flying car consists of two seats and a luggage compartment, and is regarding the size of Tesla’s electric car Model S. It means that it is perfect to put in the garage that American families often have. However, don’t be too optimistic. Space.com said, “Even if the flying car’s ducted propulsion was successful in NASA’s wind tunnel test, it does not mean that it will be put into practical use soon.” Engineers are also mixed,” he pointed out. However, the media reported that “it is always a sound engineering practice to build on proven designs” and that “this flying car may eventually turn out to be a ‘real thing’ in the future.” Reporter Kim Bong-soo [email protected]
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