In Partnership With

April 15, 1917

Course in Aerodynamics and Airplane Design

Proposed Aerological Stations

Advisory Committee Report on Patent Situation

260261

Course in Aerodynamics and Airplane Design

Within the limits of one section it is impossible to treat adequately all the data on materials required for airplane construction. The data included here will be sufficient for the purpose of our design, however, . and a number of references are appended.

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Proposed Aerological Stations

268269

Advisory Committee Report on Patent Situation

266267

Emergency Landings in Cross-country Flying

256257

Six Linked States Army Wing Sections

U. S. A. These wing sections, developed by the Aviation Section of the Signal Corps, offer considerable interest both from an aerodynamical and a structural point of view. Developed partly from the latter point, they have proved to be efficient and show very satisfactory lift coefficients.

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Editorial

Editorial

IT is a gravely critical fact that the Navy Department can only place on tile at present applications for training from civilian fliers who cannot fly and the War Department is in a similar predicament. Civilian schools are assisting in the training of young men who are desirous of entering the services, but the facilities of these schools are entirely inadequate for the training of the 4000 aviators which the National Advisory Committee for Aeronautics has estimated are necessary for our Army and Navy.
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Notes of the Memphis Training Station

256257

Aerodynamic Laboratory Tests

L of i — Angle of wing chord to wind. Ky = Lift coefficient in lbs./sq. ft./MPH. Kx = Drift coefficient in lbs./sq. ft./MPH. L/D = Ratio of lift to drift. Model: Size, 18" x 3" (54 sq. in.). Material, Brass. Velocity of wind: 30 MPH. Density of satandard air: .0760S lbs./cu. ft.
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Packard Engine Progressing

270271

Guard at Essington Station

April 11917 May 11917