Download or read book Hovering Flight Tests of a Four engine transport Vertical Take off Airplane Model Utilizing a Large Flap and Extensible Vanes for Redirecting the Propeller Slipstream written by Louis P. Tosti and published by . This book was released on 1955 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the take-off, landing, and hovering-flight characteristics of a four-engine-transport, vertical take-off airplane has been conducted with a remotely controlled free-flight model. The model had four propellers distributed along the wing with thrust axes parallel to the fuselage axis. In order to produce direct lift for hovering flight, the propeller slipstream was deflected downward about 70 degrees by a full-span 65-percent-chord flap deflected 90 degrees and eight extensible vanes arranged above the wing in a cascade relation.
Download or read book NASA Memorandum written by and published by . This book was released on 1959 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind tunnel and Piloted Flight Simulator Investigation of a Deflected slipstream VTOL Airplane the Ryan VZ 3RY written by and published by . This book was released on 1959 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Educational Scientific and Cultural Motion Pictures and Filmstrips Education Section 1958 Selected and Available for Use Abroad written by United States Information Agency and published by . This book was released on 1959 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Educational Scientific and Cultural Motion Pictures and Filmstrips Selected and Available for Use Abroad Education Section 1958 Education and Productivity written by United States Information Agency and published by . This book was released on 1959 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Educational Scientific and Cultural Motion Pictures and Filmstrips Selected and Available for Use Abroad Education Section written by United States. Interdepartmental Committee on Visual and Auditory Materials for Distribution Abroad. Subcommittee on Catalog and published by . This book was released on 1959 with total page 480 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 1963 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Bulletin written by United States. Office of Education and published by . This book was released on 1956 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistics of Land grant Colleges and Universities written by United States. Office of Education and published by . This book was released on 1956 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Accredited Higher Institutions written by and published by . This book was released on 1956 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lateral Control Characteristics of a Powered Model of a Twin propeller Deflected Slipstream STOL Airplane Configuration written by Richard J. Margason and published by . This book was released on 1964 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Note written by and published by . This book was released on 1955 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Propeller Location and Flap Deflection on the Aerodynamic Characteristics of a Wing propeller Combination for Angles of Attack from 0 to 80 Degrees written by William A. Newsom and published by . This book was released on 1957 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been made to determine the effect of propeller location and flap deflection on the lift, drag, and pitching-moment characteristics of a wing-propeller combination over an angle-of-attack range from 0 to 80 degrees. The model had four propellers, the slipstream from which covered practically the entire span of the wing. The wing had a 30-percent-chord slotted flap and an 8.5-percent-chord slat. Data were obtained for flap deflections of 0, 20, 40, and 60 degrees with the slat off and on. For one propeller position the power input to the model was measured and tuft studies of the flow on the wing were made. The data are analyzed to assess the feasibility, from consideration of stability and control, of a tilting-wing vertical-take-off-and-landing airplane with the wing pivoted behind the primary wing structure to provide a desirable structural configuration. The main object of the investigation was to determine whether advantage might be taken of the forward shift of the center of gravity of the airplane, as the wing is tilted from an angle of attack of 90 to 0 degrees, to minimize the change in trim pitching moment throughout the transition speed range for such a configuration. The results indicate that with proper propeller position and programming of flap deflection, it is possible to design a configuration of this type in which essentially no change in trim is required throughout the transition from hovering to normal unstalled forward flight.
Download or read book Analysis and Comparison with Theory of Flow field Measurements Near a Lifting Rotor in the Langley Full scale Tunnel written by Harry H. Heyson and published by . This book was released on 1956 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of an investigation in the Langley full-scale tunnel of the induced flow near a lifting rotor are given. Measurements of stream angles and velocities were made in several transverse planes along and behind the rotor in four different conditions representative of the cruising and high-speed ranges of flight. These measurements indicate that available theory may be used to calculate with reasonable accuracy the induced flow over the forward three-quarters of the disk for these flight conditions provided that a realistic nonuniform rotor disk-load distribution is assumed. Rearward of the three-quarter-diameter point, calculations of the induced velocity are increasingly inaccurate due to the rolling up of the trailing-vortex system. Farther rearward, well behind the rotor, the flow may be represented more accurately by the flow behind a uniformly loaded wing.
