Download or read book Ditching Investigation of a 1 12 Scale Model of the Douglas F4d 1 Airplane Ted No Naca De 384 written by John O. Windham and published by BiblioGov. This book was released on 2013-07 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ditching investigation was made of a l/l2-scale dynamically similar model of the Douglas F4D-1 airplane to study its behavior when ditched. The model was landed in calm water at the Langley tank no. 2 monorail. Various landing attitudes, speeds, and configurations were investigated. The behavior of the model was determined from visual observations, acceleration records, and motion-picture records of the ditchings. Data are presented in tables, sequence photographs, time-history acceleration curves, and attitude curves. From the results of the investigation, it was concluded that the airplane should be ditched at the lowest speed and highest attitude consistent with adequate control (near 22 deg) with landing gear retracted. In a calm-water ditching under these conditions the airplane will probably nose in slightly, then make a fairly smooth run. The fuselage bottom will sustain appreciable damage so that rapid flooding and short flotation time are likely. Maximum longitudinal deceleration will be about 4g and maximum normal acceleration will be about 6g in a landing run of about 420 feet, In a calm-water ditching under similar conditions with the landing gear extended, the airplane will probably dive. Maximum longitudinal decelerations will be about 5-1/2g and maximum normal accelerations will be about 3-1/2g in a landing run of about 170 feet.
Download or read book Ditching Tests of a 1 24 Scale Model of the Lockheed Xr60 1 Airplane Ted No Naca 235 written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ditching characteristics of the Lockheed XR60-1 airplane were determined by tests of a 1/24-scale dynamic model in calm water at the Langley tank no. 2 monorail. Various landing attitudes, flap settings, speeds, and conditions of damager were investigated. The ditching behavior was evaluated from recordings of decelerations, length of runs, and motions of the model. Scale-strength bottoms and simulated crumpled bottoms were used to reproduce probable damage to the fuselage. It was concluded that the airplane should be ditched at a landing attitude of about 5 deg with flaps full down. At this attitude, the maximum longitudinal deceleration should not exceed 2g and the landing run will be bout three fuselage lengths. Damage to the fuselage will not be excessive and will be greatest near the point of initial contact with the water.
Download or read book Model Ditching Investigation of the Douglas DC 4 and DC 6 Airplanes written by Lloyd J. Fisher and published by . This book was released on 1950 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Free Spinning Tunnel Tests of a 1 27 Scale Model of the Douglas Xf3d 1 Airplane Ted No Naca De 312 written by Stanley H. Scher and published by BiblioGov. This book was released on 2013-07 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free-spinning-tunnel tests have been made on a 1/27-scale model of the Douglas XF3D-1 airplane to confirm a preliminary evaluation made of the airplane spin and recovery characteristics and previously reported. Recovery characteristics were satisfactory for erect and inverted spins when the model was in the clean condition. When the slow-down brakes were open, recoveries were slow. The pedal force necessary to reverse the airplane rudder during a spin will be within the physical capabilities of the pilot. A 10-foot-diameter parachute attached to the tail of the airplane (laid-out-flat diameter, drag coefficient 0.7) or a 4.5-foot-diameter parachute attached to the outboard wing tip will be satisfactory for emergency spin recovery from demonstration spins. If it becomes necessary for the crew to abandon the airplane during a spin, they should leave from the outboard side of the cockpit. The test results indicated spin and recovery characteristics generally similar to those indicated in the preliminary evaluation.
Download or read book Free spinning Tunnel Investigation of a 1 20 scale Model of the Douglas X 3 Airplane written by Burton E. Hultz and published by . This book was released on 1951 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ditching Investigation of a 1 15 Scale Model of the Convair Liner Airplane written by Lloyd J. Fisher and published by BiblioGov. This book was released on 2013-07 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: ditching investigation of a model of the Convair-Liner airplane was made to observe the behavior and determine the safest procedure for making an emergency water landing. The ditching model was designed and constructed by the National Advisory Committee for Aeronautics. Design information on the airplane was furnished by the Consolidated Vultee Aircraft Corporation. A three-view drawing of the airplane is shown. The investigation was made in calm water at the Langley tank no. 2 monorail.
Download or read book An Investigation of the Spin and Recovery Characteristics of a 1 25 scale Model of the Douglas D 558 II Airplane written by Stanley H. Scher and published by . This book was released on 1949 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ditching Investigation of a 1 30 Scale Dynamic Model of a Heavy Jet Transport Airplane written by William C. Thompson and published by . This book was released on 1972 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ditching Tests of a 1 20 Scale Model of the Northrop B 35 Airplane written by Lloyd J. Fisher and published by BiblioGov. This book was released on 2013-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests of a 1/20-scale dynamically similar model of the Northrop B-35 airplane were made to study its ditching characteristics. The model was ditched in calm water at the Langley tank no. 2 monorail. Various landing attitudes, speeds, and conditions of damage were simulated during the investigation. The ditching characteristics were determined by visual observation and from motion-picture records and time-history acceleration records. Both longitudinal and lateral accelerations were measured. Results are given in tabular form and time-history acceleration curves and sequence photographs are presented. Conclusions based on the model investigation are as follows: 1. The best ditching of the B-35 airplane probably can be made by contacting the water in a near normal landing attitude of about 9 deg with the landing flaps full down so as to have a low horizontal speed. 2. The airplane usually will turn or yaw but the motion will not be violent. The maximum lateral acceleration will be about 2g. 3. If the airplane does not turn or yaw immediately after landing, it probably will trim up and then make a smooth run or porpoise slightly. The maximum longitudinal decelerations that will be encountered are about 6g or 7g. 4. Although the decelerations are not indicated to be especially large, the construction of the airplane is such that extensive damage is to be expected, and it probably will be difficult to find ditching stations where crew members can adequately brace themselves and be reasonably sure of avoiding a large inrush of water
Download or read book An Investigation of a 0 16 scale Model of the Douglas X 3 Airplane to Determine Means of Improving the Low speed Longitudinal Stability and Control Characteristics written by John W. McKee and published by . This book was released on 1952 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Douglas D 558 1 Skystreak written by Scott Libis and published by Consign. This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Crimson test Tube", "Supersonic Test Tube" and "Flying Stove Pipe" were just some of the nicknames bestowed upon the D-558-1 over the years. Skystreak was the popular name given by the Douglas Aircraft Company. The Skystreak, sponsored by the U.S. Navy and NACA, was charged with exploring flight in the transonic region. Aircraft manufacturers had been making aircraft for some time capable of reaching the onset of transonic flight, where a phenomenon known as compressibility lay waiting. This aircraft is currently on display at the Naval Aviation Museum at NAS Pensacola, Florida.
Download or read book Preliminary Full scale Investigation of a 1 3 scale Model of a Convertible type Airplane written by Roy H. Lange and published by . This book was released on 1949 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measured Characteristics of the Douglas D 558 1 Airplane BUAERO NO 37971 in Two Landings written by Hubert M. Drake and published by . This book was released on 1949 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Records were obtained of two landings of the Douglas D-558-1 airplane during the stability and control investigation. These two records show that the maximum normal-force coefficient used during the landings, 0.95, was considerably below the maximum, 1.2, estimated to be available. The approaches were made at 150 percent of the possible minimum speed, and the actual contacts were at about 115 percent of minimum speed. The rate of descent in the approach was 1200 to 1800 feet per minute at the start of the landing flare.
Download or read book Flight Investigation of Flutter Models with 1 10 scale Douglas D 558 2 Wing Panels written by Jerome M. Teitelbaum and published by . This book was released on 1949 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Full span Flap and Air brake Investigation written by C. Dixon Ashworth and published by . This book was released on 1944 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flight Tests on U S S Los Angeles Pt 1 Full Scale Pressure Distribution Investigation written by S.J. De France and published by . This book was released on 1929 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Commerce Regulations written by United States. Bureau of Air Commerce and published by . This book was released on 1927 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
