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5,157
NACA Technical Notes
4,107
NACA Technical Memorandums
1,438
NACA Technical Reports
1,423
NACA Wartime Reports
1,263
NACA Advanced Restricted Reports
533
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338
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257
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223
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13,786 Matching Results
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Morane-Saulnier 121 Single-Seat Pursuit Airplane (French)
The M.-S. 121 is noted for it's excellent visibility inherent in the parasol design. The wings have no dihedral but a very pronounced sweep back. A description of the components, flight characteristics, performance, drawings, and photographs are provided.
Date:
June 1928
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fuel-Evaporation Loss as Determined by the Change in the Specific Gravity of the Fuel in an Aircraft Fuel Tank
Report discusses the results of an investigation to determine the feasibility of using the change in the specific gravity of fuels in aircraft fuel tanks to measure fuel-vaporization loss. Six fuels were tested via fuel-distillation tests and simulated-flight tests. An equation based on the specific gravity of the fuel is also described.
Date:
May 1945
Creator:
Stone, Charles S. & Kramer, Walter E.
Object Type:
Report
System:
The UNT Digital Library
Stability of the Parachute and Helicopter
This report deals with an extension of the theory of stability in oscillation to the case of aircraft following a vertical trajectory, and particularly to the oscillations of parachutes.
Date:
1920
Creator:
Bateman, H.
Object Type:
Report
System:
The UNT Digital Library
The Henderson "Hendy" 302 Cabin Airplane (British): A Two-Seat Low-Wing Cantilever Monoplane
Circular presenting a description of the Hendy 302, which is a two-seat, low-wing cantilever monoplane with a hinged cabin top. A description of the design, flying qualities, and photographs are provided.
Date:
September 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Transformation of Heat in an Engine
This report presents a thermodynamic basis for rating heat engines. The production of work by a heat engine rests on the operation of supplying heat, under favorable conditions, to a working fluid and then taking it away.
Date:
April 1929
Creator:
Neumann, Kurt
Object Type:
Report
System:
The UNT Digital Library
Fluid de-icing tests on a Chandler-Evans 1900 CPB-3 carburetor mounted on a Pratt & Whitney R-1830-C4 intermediate rear engine section
Report presenting an investigation of the icing and de-icing characteristics of a Pratt & Whitney R-1830 engine induction system. The current report covers a program to determine the most effective rate and method of injection of de-icing fluid to remove a heavy ice formation from the induction system. Results regarding the flow rates, recovery times, de-icing portions of the runs, and ice formation characteristics are provided.
Date:
October 1944
Creator:
Galvin, Herman B. & Essex, Henry A.
Object Type:
Report
System:
The UNT Digital Library
Richard-Penhoet Commercial Seaplane
This is a multi-engine monoplane with a central hull and without external bracing. The trim of the seaplane on the water is assured by two wing floats, one on each side of the hull 9 m. from its axis. It has a total power of 2100 HP. from 5 air cooled Jupiter radial engines.
Date:
March 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Breguet Military Airplane, Type 33: A Two-Place Long-Distance Sesquiplane for Observation and Bombing
Circular presenting a description of the Breguet military airplane, Type 33, which is a two-place long-distance sesquiplane made for observation and bombing. Details of the components, bomb dropping, flying qualities, design, flying qualities and performances, drawings, and photographs are provided.
Date:
September 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Fokker "Trimotor F VII" Commercial Transport Monoplane
Directly developed from the single engined type F VII ten passenger monoplanes, the Fokker Trimotor closely follows the commercial aircraft that preceded it. It has three Wright Whirlwind air-cooled engines, rated at 200 HP each. Details of the wings, cockpit and cabin, baggage and freight compartments, controls, landing gear, characteristics, drawings, and photographs are provided.
Date:
June 1928
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Airspeed "Oxford" Training Airplane (British): A Two-Engine Cantilever Monoplane
Circular describing the Airspeed A.S. 10 "Oxford", which is a twin-engine trainer with a variety of equipment, including propellers, landing gear, and other components.Details of the wings, fuselage, the inside, characteristics, performance, drawings, and photographs are provided.
Date:
September 1937
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Vojenska-Smolik S.16 Airplane: All-Metal Long-Distance Observation Bi-Plane
Circular presenting a description of the Vojenska-Smolik all-metal two-seater airplane. The design and flight characteristics are described and blueprints and photographs of the aircraft are provided.
Date:
March 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The "Comte A.C. 3" Military Airplane (Swiss) : A High-Wing Semicantilever Monoplane
Circular presenting a description of the Comte A.C. 3, which is a high-wing monoplane with tow tandem 600 hp Hispano-Suiza engines mounted above the fuselage. Details of the design, fuel tanks, fuselage, pilot seating, engine, wings, safety factors, and flight qualities are provided.
Date:
July 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Boeing Mail Airplane
The Boeing Mail Airplane is a biplane with cloth covered wings of wood and wire construction, a top speed of 130 MPH, and a fuel capacity of 100 gallons in two tanks.
Date:
August 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Flight tests of thermal ice-prevention equipment in the XB-24F airplane
Report presenting performance tests of thermal ice-prevention equipment designed and installed in the XB-24F airplane in icing and non-icing conditions. The recorded temperature and air-flow data, and the calculated quantities of heat flow throughout the system are presented in tabular form.
Date:
October 7, 1943
Creator:
Neel, Carr B. & Jones, Alun R.
Object Type:
Report
System:
The UNT Digital Library
Travel Air Commercial Airplane - Type 5000
The 5000 is a semicantilever monoplane, closed cabin type, with pilot about in line with the leading edge of the wing and room for 4 passengers behind him. It is equipped with a Wright Whirlwind engine. A description of the visibility, propeller, power plant, pilot's cockpit, passenger cabin, landing gear, struts, wings, fuselage, empennage, general, characteristics, photographs, and drawings are provided.
Date:
September 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Supplies and Production of Aircraft Woods
The purpose of this report is to present in brief form such information as is available regarding the supplies of the kinds of wood that have been used or seem likely to become important in the construction of airplanes, and the amount of lumber of each species normally put on the market each year. A general statement is given of the uses to which each kind of wood is or may be put.
Date:
1920
Creator:
Sparhawk, W. N.
Object Type:
Report
System:
The UNT Digital Library
The C.A.M.S. 60 Seaplane (French): A Twin-Engine Bombing and Torpedo Monoplane
Circular presenting a description of the C.A.M.S. 60, which is a twin-engine monoplane with a medium-thickness wing and two floats. Details of the wings, engines, fuselages, floor, rear cabin, floats, and flying qualities are provided.
Date:
April 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Latécoère 501 Commercial Seaplane (French): A Three-Engine Metal Sesquiplane
Circular presenting a description of the Latécoère 501. A more detailed description of the general characteristics, power plant, wings, planing fins, hull, tail surfaces, and flying characteristics are provided.
Date:
September 1932
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Flight Tests of Modifications to Improve the Aileron Control Characteristics of a North American XP-51 Airplane (AC No. 41-38)
Investigations were undertaken to improve the ailerons of a P-51 fighter so as to obtain greater effectiveness without increasing the stick forces. Modifications consisted of increasing the deflection range of the aileron to 70 percent and changing the original concave section to a thick section with beveled trailing edge. Results of the modified ailerons showed an increase in effectiveness over the original aileron of 70 percent at low speed and 55 percent at high speeds.
Date:
June 1942
Creator:
White, M. D. & Hoover, Herbert H.
Object Type:
Report
System:
The UNT Digital Library
An approximate spin design criterion for monoplanes
"A quantitative criterion of merit has been needed to assist airplane designers to incorporate satisfactory spinning characteristics into new designs. An approximate empirical criterion, based on the projected side area and the mass distribution of the airplane, has been formulated in a recent British report. In the present paper, the British results have been analyzed and applied to American designs. A simpler design criterion based solely on the type and the dimensions of the tail, has been developed: it is useful in a rapid estimation of whether a new design is likely to comply with the minimum requirements for safety in spinning" (p. 1).
Date:
June 1939
Creator:
Seidman, Oscar & Donlan, Charles J.
Object Type:
Report
System:
The UNT Digital Library
Ultraviolet spectrochemical analysis for aromatics in aircraft fuels
Report presenting tests to verify and extend ultraviolet spectroscopic techniques for applications to the analysis of aviation fuels for their aromatic constituents. Results regarding photographic absorption spectra, spectrophotometric absorption spectra, and spectrophotometric analyses are provided.
Date:
March 1945
Creator:
Cleaves, Alden P.
Object Type:
Report
System:
The UNT Digital Library
Caproni Airplane Ca 73 (Commercial) and Ca 73 ter (Military)
The Caproni 73 is a biplane with medium thick wings, a rigid central section, and with each lateral extension forming a single cell and is powered by two 500 Isotta Fraschini "Asso" Engines.
Date:
August 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
On the plane potential flow past a symmetrical lattice of arbitrary airfoils
Report presenting a theoretical investigation of the two-dimensional, incompressible potential flow past a symmetrical lattice of airfoils of arbitrary shape. Expressions are given for evaluation of the velocity and pressure distribution at the airfoil boundary.
Date:
January 1944
Creator:
Garrick, I. E.
Object Type:
Report
System:
The UNT Digital Library
Fiat C.R. 20 Pursuit Airplane
The Fiat C.R. 20 has an all metal frame covered with fireproof fabric, except for the area near the engines, which is covered in duraluminum. It is armed with 4 machine guns and is capable of 280 KPH.
Date:
May 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library