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 Serial/Series Title: NACA Technical Reports
 Collection: National Advisory Committee for Aeronautics Collection
Results 1401 - 1410 of 1,422
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Fabrics for aeronautic construction

Fabrics for aeronautic construction

Date: January 1, 1918
Creator: Walen, E D
Description: The Bureau of Standards undertook the investigation of airplane fabrics with the view of finding suitable substitutes for the linen fabrics, and it was decided that the fibers to be considered were cotton, ramie, silk, and hemp. Of these, the cotton fiber was the logical one to be given primary consideration. Report presents the suitability, tensibility and stretching properties of cotton fabric obtained by laboratory tests.
Contributing Partner: UNT Libraries Government Documents Department
An investigation of the elements which contribute to statical and dynamical stability, and of the effects of variation in those elements

An investigation of the elements which contribute to statical and dynamical stability, and of the effects of variation in those elements

Date: January 1, 1918
Creator: Klemin, Alexander; Warner, Edward P & Denkinger, George M
Description: Part 1 gives details of models tested and methods of testing of the Eiffel 36 wing alone and the JN2 aircraft. Characteristics and performance curves for standard JN are included. Part 2 presents a statistical analysis of the following: lift and drag contributed by body and chassis tested without wings; lift and drag contributed by tail, tested without wings; the effect on lift and drift of interference between the wings of a biplane combination; lift and drag contributed by the addition of body, chassis, and tail to a biplane combination; total parasite resistance; effect of varying size of tail, keeping angle of setting constant; effect of varying length of body and size of tail at the same time, keeping constant moment of tail surface about the center of gravity; forces on the tail and the effects of downwash; effect of size and setting of tail on statical longitudinal stability effects of length of body on stability; the effects of the various elements of an airplane on longitudinal stability and the placing of the force vectors. Part 3 presents the fundamental principals of dynamical stability; computations of resistance derivatives; solution of the stability equation; dynamical stability of the Curtiss JN2; tabulation ...
Contributing Partner: UNT Libraries Government Documents Department
Nomenclature for aeronautics

Nomenclature for aeronautics

Date: January 1, 1918
Creator: unknown
Description: Report defines the principal terms which have come into use in the development of aeronautics.
Contributing Partner: UNT Libraries Government Documents Department
Periodic stresses in gyroscopic bodies, with applications to air screws

Periodic stresses in gyroscopic bodies, with applications to air screws

Date: January 1, 1918
Creator: Zahm, A F
Description: Report discusses periodic stresses in gyroscopic bodies with applications to air screws caused by particle mass. Report concludes that all modern air screws obey the laws found for plane groups of particles. In particular the two-bladers exert on the shaft a rhythmic gyroscopic torque; the multibladers a steady one; both easily calculable for any given conditions of motion and mass distribution.
Contributing Partner: UNT Libraries Government Documents Department
The stretching of the fabric and the deformation of the envelope in nonrigid balloons

The stretching of the fabric and the deformation of the envelope in nonrigid balloons

Date: January 1, 1918
Creator: Haas, Rudolf & Dietzius, Alexander
Description: Report presents the performance of fabrics used for the envelopes of airships.
Contributing Partner: UNT Libraries Government Documents Department
Theory of an airplane encountering gusts II

Theory of an airplane encountering gusts II

Date: January 1, 1918
Creator: Wilson, Edwin Bidwell
Description: Calculations of aerodynamic effects of an airplane encountering gusts are presented.
Contributing Partner: UNT Libraries Government Documents Department
Theory of an Airplane Encountering Gusts III

Theory of an Airplane Encountering Gusts III

Date: January 1, 1918
Creator: Wilson, Edwin Bidwell
Description: Report presents a new method for solving linear equations developed by Bromwich, which is suited to determine the motion for any particular gust, when the machine started from equilibrium, without the trouble of determining the constants of integration in the complementary function. (author).
Contributing Partner: UNT Libraries Government Documents Department
The Variation of Yawing Moment Due to Rolling

The Variation of Yawing Moment Due to Rolling

Date: January 1, 1918
Creator: Wilson, Edwin Bidwell
Description: The aerodynamical constants of an airplane necessary for the discussion of stability are partly observed and partly calculated. Among the calculated coefficients is n(p), which is the variation of yawing moment due to rolling. (author).
Contributing Partner: UNT Libraries Government Documents Department
Aeronautic Power Plant Investigations

Aeronautic Power Plant Investigations

Date: January 1, 1917
Creator: Dickinson, H C
Description: Report presents the design of radiators, spark plugs and test equipment used to test the performance of aeronautic engines at high altitudes.
Contributing Partner: UNT Libraries Government Documents Department
Carburetor design - a preliminary study of the state of the art

Carburetor design - a preliminary study of the state of the art

Date: January 1, 1917
Creator: Lucke, Charles Edward & Willhofft, Friederich Otto
Description: Report presents a preliminary study of the state of the art of the design of carburetors for gasoline engines used in aeronautic, marine and land transportation service.
Contributing Partner: UNT Libraries Government Documents Department