Download or read book Ducted Fan Design Volume 1 Propulsion Physics and Design of Fans and Long Chord Ducts written by Marc de Piolenc and published by Lulu.com. This book was released on 2018-09-26 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a simplified method of designing ducted fans for light aircraft propulsion. Includes a survey of ducted-fan-powered aircraft, ranging from amateur-built airplanes to military models and prototypes. Detailed discussion of engines and list of suitable powerplants drawn from automobiles, ATVs and personal watercraft. Extensive technical bibliography and list of sources.

Download or read book Key Technology Challenges of Electric Ducted Fan Propulsion Systems for eVTOL written by Yuping Qian and published by SAE International. This book was released on 2023-11-22 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrical vertical takeoff and landing (eVTOL) vehicles for urban air mobility (UAM) are garnering increased attention from both the automotive and aerospace industries, with use cases ranging from individual transportation, public service, cargo delivery, and more. Distributed electric propulsion systems are their main technical feature; they determine vehicle size and propulsion efficiency and provide distributed thrust to achieve attitude control. Considering the intended role of eVTOL vehicles, ducted-fan systems are ideal choice for the propulsor, as the duct provides a physical barrier between the rotating blades and the human, especially during the take-off and landing phases. Key Technology Challenges of Electric Ducted Fan Propulsion Systems for eVTOL introduces the main bottlenecks and key enablers of ducted-fan propulsion systems for eVTOL applications. Based on the introduction and discussion of these important issues, this report will help eVTOL engineers understand the key technical issues and inspire them to develop the ideal solutions that will enable eVTOL vehicle deployment for UAM operations. Click here to access the full SAE EDGETM Research Report portfolio. https://doi.org/10.4271/EPR2023027

Download or read book A Wind tunnel Investigation of a 4 foot diameter Ducted Fan Mounted on the Tip of a Semispan Wing written by Paul F. Yaggy and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerodynamics of a Tilting Ducted Fan Configuration written by Paul F. Yaggy and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Large scale Wind tunnel Investigation of a Ducted fan Deflected slipstream Model with an Auxiliary Wing written by Michael D. Falarski and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The longitudinal aerodynamic characteristics of a semispan wing dellected-slipstream configuration with a double-slotted flap and and auxiliary wing were determined. The model was powered by two low-pressure-ratio ducted fans. A comparison of static test results with results obtained from various propeller-driven configurations indicates that the turning effectiveness of fan-powered deflected-slipstream configurations can be correlated with propeller-powered configurations with the same flap-chord to slipstream-diameter ratio. The turning effectiveness of the auxiliary wing was essentially the same as would be produced by a conventional slotted flap system with the same flap-chord to slipstream-diameter ratio. The auxiliary wing reduced the thrust required at low speeds as would be expected due to the increase in lifting surface area.

Download or read book Aerodynamic Characteristics of a 4 foot diameter Ducted Fan Mounted on the Tip of a Semispan Wing written by Kenneth W. Mort and published by . This book was released on 1962 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power, free-stream velocity, and duct angle of attack were varied at several wing angles of attack to define the aerodynamic characteristics of the ducted fan, wing, and of the ducted fan wing together. At large duct angles of attack, the inside of the upstream duct lip stalled causing a rapid change in the duct pitching moments and an accompanying increase in the power required. At low horizontal velocities, this lip stall would probably limit the rate of descent of a vehicle with a wing-tip-mounted ducted fan. During low-speed, level, unaccelerated flight (30 to 80 knots) it appeared that a vehicle, with a configuration similar to that examined, would require less power if it were supported by a wing and ducted fans than if it were supported only by ducted fans. (Author).

Download or read book Ducted Fans for Model Jets written by David James and published by Fountain PressLtd. This book was released on 1989 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ducted fans represent the fastest growing and most exciting facet of aeromodelling, and there is now a tremendous growth of interest amongst fliers, as well as designers and builders. Ducted Fans for Model Jets is a thorough reference book on the technology, and examines the fan unit itself, suitable engines to power the fan, special airframe designs, commercially available engines and fans, and important experimental data on fan and aircraft performance."--Back cover.

Download or read book Building Gas Blimps written by Robert J. Recks and published by Marc de Piolenc. This book was released on 1997-12-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shows how a small (but man-carrying) gas blimp is built.

Download or read book The Proceedings of the 18th Annual Conference of China Electrotechnical Society written by and published by Springer Nature. This book was released on 2024 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers outstanding papers presented at the 18th Annual Conference of China Electrotechnical Society, organized by China Electrotechnical Society (CES), held in Nanchang, China, from September 15 to 17, 2023. It covers topics such as electrical technology, power systems, electromagnetic emission technology, and electrical equipment. It introduces the innovative solutions that combine ideas from multiple disciplines. The book is very much helpful and useful for the researchers, engineers, practitioners, research students, and interested readers.

Download or read book Conference on V STOL and STOL Aircraft Ames Research Center Moffett Field California April 4 5 1966 written by and published by . This book was released on 1966 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1966 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Flying Cars for Everyone in the Near Future written by A.C. Rogers Jr. and published by America Star Books. This book was released on 2012-08-31 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As human population continues to increase here on earth, congested streets and highways will abound at a rate well beyond our current plans for solution. Something is drastically needed to relax traffic congestion. An Aircar that con be housed in your garage; can takeoff "quietly" from in front of your house without a runway; and take you to work and back every day is conceptualized herein. A design specification for an Aircar is developed herein by first identifying the impracticalities of everyone having an Aircar for everyday use and then sets forth the technological means for overcoming each of the identified impracticalities. An Aircar design concept is presented based on a design specification. The one great importance of this book is that it identifies large number of applications currently under development, many of which have not been oriented toward any specific application.. Such technologies include nanotube materials, electrogravity propulsion, Lithium Air batteries, "free energy" electrical generators, plasma actuators for boundary layer flow control and noise reduction and electronic guidance and safety control. Thus, the development of the Aircar will bring to the entire aeronautical industry the full development of such relatively "far out" technologies."

Download or read book Proceedings of China SAE Congress 2022 Selected Papers written by China Society of Automotive Engineers and published by Springer Nature. This book was released on 2023-05-30 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers outstanding papers presented at the China SAE Congress 2022, featuring contributions mainly from China, the biggest carmaker as well as most dynamic car market in the world. The book covers a wide range of automotive-related topics and the latest technical advances in the industry. Many of the approaches in the book help technicians to solve practical problems that affect their daily work. In addition, the book offers valuable technical support to engineers, researchers, and postgraduate students in the field of automotive engineering.

Download or read book Advances in Mechanical Design written by Jianrong Tan and published by Springer Nature. This book was released on with total page 2698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Proceedings of the 2018 Asia Pacific International Symposium on Aerospace Technology APISAT 2018 written by Xinguo Zhang and published by Springer. This book was released on 2019-06-08 with total page 3091 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of peer-reviewed papers from the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). The symposium is a common endeavour between the four national aerospace societies in China, Australia, Korea and Japan, namely, the Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), the Korean Society for Aeronautical and Space Sciences (KSAS) and the Japan Society for Aeronautical and Space Sciences (JSASS). APISAT is an annual event initiated in 2009 to provide an opportunity for researchers and engineers from Asia-Pacific countries to discuss current and future advanced topics in aeronautical and space engineering.

Download or read book Ducted Fan Design for VTOL Aircraft Systems written by Hugh McGinnis Reynolds and published by . This book was released on 1970 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transition and Hovering Flight Characteristics of a Tilt duct VTOL Research Aircraft written by Henry L. Kelley and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: