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 Decade: 1910-1919
 Year: 1917
 Collection: National Advisory Committee for Aeronautics Collection
Preliminary report on the problem of the atmosphere in relation to aeronautics

Preliminary report on the problem of the atmosphere in relation to aeronautics

Date: January 1, 1917
Creator: Marvin, Charles F
Description: A report to the Weather Bureau, Washington DC, from the chairman of the Subcommittee on the Atmosphere in Relation to Aeronautics describing the activities accomplished and the proposal of work to be undertaken by the subcommittee.
Contributing Partner: UNT Libraries Government Documents Department
Relative worth of improvements of fabrics

Relative worth of improvements of fabrics

Date: January 1, 1917
Creator: unknown
Description: Report presents an equation that connects all the major qualities of a fabric, from which the fabric may be rigidly designed with respect to maximum ultimate economy.
Contributing Partner: UNT Libraries Government Documents Department
Report on behavior of aeroplanes in gusts

Report on behavior of aeroplanes in gusts

Date: January 1, 1917
Creator: Hunsaker, J C
Description: Part 1 presents the results of a wind tunnel test of a biplane model with an 18 inch span. The lift, drift, and pitching moment were measured for a series of angles of incidence corresponding to the maximum possible changes of flight attitude. Only the discussion of symmetrical or longitudinal changes is given. From the observed rate of variation of the forces and pitching moment, it was possible to calculate the derivatives needed in the complete theory of longitudinal stability in still air. The damping of the pitching oscillation was also determined experimentally. Part 2 presents a theoretical method for determining the effects of gusts on aeroplanes in the following cases: (1) head-on gusts rising from 0 to j feet per second with various degrees of sharpness, (2) up gusts of the same type, (3) rotary gusts of the same type, (4) rear gusts and down gusts are included by merely changing the sign of j.
Contributing Partner: UNT Libraries Government Documents Department
Report on investigations of aviation wires and cables, their fastenings and terminal connections

Report on investigations of aviation wires and cables, their fastenings and terminal connections

Date: January 1, 1917
Creator: Sunderlang, C C
Description: Report presents results that show that it is possible to furnish efficient terminal connections that would allow for repairs for aviation wires and cables and eliminate the use of acid solder and blow torch.
Contributing Partner: UNT Libraries Government Documents Department
Thermodynamic efficiency of present types of internal combustion engines for aircraft

Thermodynamic efficiency of present types of internal combustion engines for aircraft

Date: January 1, 1917
Creator: Lucke, Charles E
Description: Report presents requirements of internal combustion engines suitable for aircraft. Topics include: (1) service requirements for aeronautic engines - power versus weight, reliability, and adaptability factors, (2) general characteristics of present aero engines, (3) aero engine processes and functions of parts versus power-weight ratio, reliability, and adaptability factors, and (4) general arrangement, form, proportions, and materials of aero parts - power-weight ratio, reliability, and adaptability.
Contributing Partner: UNT Libraries Government Documents Department
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