You limited your search to:
Decade:
1920-1929
Year:
1929
Serial/Series Title:
NACA Technical Memorandums
Collection:
National Advisory Committee for Aeronautics Collection
Remarks on airplane struts and girders under compressive and bending stresses : index values
Date: February 1, 1929
Creator: Wagner, Herbert
Description: In this paper the behavior of straight, centrally loaded compression struts is discussed and values computed.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65287/
Welding of stainless materials
Date: September 1, 1929
Creator: Bull, H
Description: It would appear that welds in some stainless steels, heat-treated in some practicable way, will probably be found to have all the resistance to corrosion that is required for aircraft. Certainly these structures are not subjected to the severe conditions that are found in chemical plants.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65385/
Metal construction development. Part IV : moments of inertia of thin corrugated sections
Date: September 1, 1929
Creator: Pollard, H J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65382/
Metal construction development. Part III : strip metal construction - wing ribs
Date: August 1, 1929
Creator: Pollard, H J
Description: Strip metal construction of wing spars are presented as well as workshop practices.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65381/
Experiments with a wing model from which the boundary is removed by suction
Date: October 1, 1929
Creator: Schrenk, Oskar
Description: The present report deals with a series of tests made for the purpose of improving flow conditions about wings by applying the suction principle (increase of the lift coefficient and reduction of the drag about very thick wing sections). Though not conclusive, the report contains interesting results.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65387/
Welding rustproof steels
Date: September 1, 1929
Creator: Hoffmann, W
Description: The following experimental results will perhaps increase the knowledge of the process of welding rustproof steels. The experiments were made with two chrome-steel sheets and with two chrome-steel-nickel sheets having the composition shown in Table I.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65384/
Wings with nozzle-shaped slots
Date: July 1, 1929
Creator: Katzmayr, Richard
Description: Even before the publication of the results of the Gottingen experiments on the removal of the boundary layer by suction, experiments with nozzle-slotted wings were begun. A report of those experiments will be given here. Taken collectively, the experiments show that, as regards increasing the lift values, the effect of the air flowing from the nozzle-shaped slots is similar to the effect produced in the case of ordinary slotted wings. The high lift values are attained, however, at the smaller angles of attack employed in ordinary flight.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65371/
Metal construction development. Part II : strip metal construction - wing spars
Date: August 1, 1929
Creator: Pollard, H J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65378/
The Analysis of Aircraft Structures as Space Frameworks. Method Based on the Forces in the Longitudinal Members
Date: July 1, 1929
Creator: Wagner, Herbert
Description: The following examples do not take up the discussion of viewpoints to be heeded in determining the design of a framework for given external conditions. Rather they are methods for determining the forces in airplane fuselages and wings, though similar considerations are applied to certain simple cases of a different kind. The object of this treatise is to summarize and amplify these considerations from definite viewpoints.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65376/
Effect of oxygen on the ignition of liquid fuels
Date: January 1, 1929
Creator: Pahl, H
Description: The ignition temperature, ignition lag, and ignition strength of simple and homogeneous fuels in combustion air of small oxygen content differ from what they are in air of greater oxygen content. In the case of small oxygen content, these fuels behave as if mixed unevenly. In the case of air with a definite oxygen content, the simple fuels have two ignition points, between which ignition takes place within a certain temperature range. The phenomena are explained by pyrogenous decomposition, comparison of the individual heat quantities, and the effect of the walls.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65327/