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Sound Measurements For Five Shrouded Propellers At Static Conditions
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Book Synopsis Sound Measurements for Five Shrouded Propellers at Static Conditions by : Harvey H. Hubbard
Download or read book Sound Measurements for Five Shrouded Propellers at Static Conditions written by Harvey H. Hubbard and published by . This book was released on 1950 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sound-pressure measurements are reported for five shrouded propellers and are compared with those for an unshrouded propeller operating at approximately the same rotational speed and power. The maximum total sound pressure produced by a two-blade shrouded propeller is found to vary approximately from one-half to twice as much as that for an unshrouded two-blade propeller, depending on whether the flow at the shroud surface is unseparated or separated, respectively. Shroud chord is found not to be critical except insofar as the areodynamic considerations are affected. In general, if the shroud-propeller unit satisfies aerodynamic requirements, good sound characteristics will also be obtained.
Book Synopsis Technical Note - National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Technical Note - National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1958 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Key Technology Challenges of Electric Ducted Fan Propulsion Systems for eVTOL by : Yuping Qian
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 NACA Research Memorandum written by and published by . This book was released on 19?? with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report of the National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Annual Report of the National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1950 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the Committee's Technical reports no. 1-1058, reprinted in v. 1-37.
Download or read book Report written by and published by . This book was released on 1945 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report - National Advisory Committee for Aeronautics by : United States. National Advisory Committee for Aeronautics
Download or read book Report - National Advisory Committee for Aeronautics written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1950 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Aeronautical Sciences by : Th. Von Kármán
Download or read book Advances in Aeronautical Sciences written by Th. Von Kármán and published by Elsevier. This book was released on 2014-05-12 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Aeronautical Sciences, Volume 2 contains the proceedings of the First International Congress in the Aeronautical Sciences, held in Madrid, Spain in September 1958. The book is comprised of survey papers and original contributions that discuss common problems in aeronautics and in space technology. The text presents interesting articles that deals with topics on the fundamental design problems of aircraft with boundary layer control for maintaining laminar flow; developments in hypersonic flow research; structures and materials for finite lifetime; and propulsion methods in astronautics. Aeronautics engineers and scientists in allied fields will find the book invaluable.
Book Synopsis Helicopter Theory by : Wayne Johnson
Download or read book Helicopter Theory written by Wayne Johnson and published by Courier Corporation. This book was released on 2012-03-07 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monumental engineering text covers vertical flight, forward flight, performance, mathematics of rotating systems, rotary wing dynamics and aerodynamics, aeroelasticity, stability and control, stall, noise, and more. 189 illustrations. 1980 edition.
Book Synopsis Index of NACA Technical Publications by : United States. National Advisory Committee for Aeronautics
Download or read book Index of NACA Technical Publications written by United States. National Advisory Committee for Aeronautics and published by . This book was released on 1952 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Selected Listing of NASA Scientific and Technical Reports for ... by :
Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by and published by . This book was released on 1949 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Small-deflection Theory for Curved Sandwich Plates by : Manuel Stein
Download or read book A Small-deflection Theory for Curved Sandwich Plates written by Manuel Stein and published by . This book was released on 1950 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: A small-deflection theory that takes into account deformations due to transverse shear is presented for the elastic-behavior analysis of orthotropic plates of constant cylindrical curvature, with considerations of buckling included. The theory is applicable primarily to sandwich construction.
Book Synopsis A Compilation of Research Reports of Physical Research Division, Dynamic Loads Division, Loads Division, 1921 - 1973 by : Gloria R. Champine
Download or read book A Compilation of Research Reports of Physical Research Division, Dynamic Loads Division, Loads Division, 1921 - 1973 written by Gloria R. Champine and published by . This book was released on 1977 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conference on V/STOL and STOL Aircraft, Ames Research Center, Moffett Field, California, April 4-5, 1966 by :
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:
Book Synopsis Bibliography of Technical Reports by :
Download or read book Bibliography of Technical Reports written by and published by . This book was released on 1950 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis United States Government Publications Monthly Catalog by :
Download or read book United States Government Publications Monthly Catalog written by and published by . This book was released on 1950 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis United States Government Publications Monthly Catalog by : United States. Superintendent of Documents
Download or read book United States Government Publications Monthly Catalog written by United States. Superintendent of Documents and published by . This book was released on 1950 with total page 1774 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
