14 Matching Results

Search Results

Results: 1 - 14
open access

Vickers "Viastra I" Commercial Airplane (British): A High-Wing All-Metal Semicantilever Monoplane

Description: Circular describing the Vickers Viastra I, which is a commercial high-wing all-metal semicantilever monoplane. Details of the structure, fuselage, wings, fuel tanks, landing gear, tail, cabin, cockpit, characteristics, drawings, and photographs are provided.
Date: November 1930
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mathematical treatise on the recovery from a flat spin

Description: In this mathematical investigation, made in collaboration with Dr. Wilhelm Schmidt, we interpret the temporary change (due to some disturbance) in the quantities which define the position of the airplane while in a flat spin. We further examine the effect of this change, of the means resorted to to produce the disturbance, and thus reveal the expedients available for recovering from a flat spin.
Date: November 1930
Creator: Fuchs, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Characteristics of Fuel Sprays From Open Nozzles

Description: "The penetration and cone-angle of fuel sprays from open nozzles were recorded with the NACA Spray Photography Equipment. The results show that for injection systems in which the rate of pressure rise at the discharge orifice is high, open nozzles give spray-tip velocities and penetrations which compare favorably with those of closed nozzles. The spray cone-angle was the same for all tests, although open nozzles having different orifice diameters were used, and one nozzle was used both as an op… more
Date: November 1930
Creator: Rothrock, A. M. & Lee, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lamb as You Like It.

Description: Describes uses for lamb meat in meals; provides recipes and methods for its preparation in various dishes.
Date: November 1930
Creator: Alexander, Lucy M. (Lucy Maclay), 1888-
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Fertilizers for Pecan Soils.

Description: Describes the natural soils where pecan trees grow and the different types of fertilizers used to improve the soils.
Date: November 1930
Creator: Skinner, J. J. (Joshua John), 1882-1969
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

Practical Tests With The "Auto Control Slot" Part 2: Discussion

Description: "For some time the D.V.L. has been investigating the question of applicability of Handley Page slotted wings to German airplanes. Comparitive gliding tests were made with open and closed slots on an Albatros L 75 airplane equipped with the Handley Page "auto control slots." This investigation served to determine the effect of the auto control slot on the properties and performances of airplanes at large angles of attack. The most important problems were whether the angle of glide at small angle… more
Date: November 1930
Creator: Lachmann, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Practical Tests With The "Auto Control Slot" Part 1: Lecture

Description: "The effect of a slotted wing depends essentially on the fact that a secondary flow branches off from the main flow and passes to the suction side of the profile. It is thus possible to delay the separation greatly and increase the lift. The practical aspect of the slotted wing is less known in Germany, especially the results obtained during the last three years since the introduction of the 'auto control slot'" (p. 1).
Date: November 1930
Creator: Lachmann, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metal Covering of Airplanes

Description: This paper presents a relative determination of the wrinkling of a plate wall beam with variable number of supports and methods of attachment. The discussion is based entirely on tests with extensometer readings and number of wrinkles, with complete web and with cutout sections. The author notes that the number of corrugations increase with added stress, keeping constant edge spacing.
Date: November 1930
Creator: Mathar, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Riveted Joints in Thin Plates

Description: The method of riveting by forming the closing head under increasing pressure or by a series of hammer blows is investigated. The question as to the best edge distance, i.e. that distance from the rivet center to the plate edge below which it is unadvisable to go and, at the same time useless to go beyond, was examined. The slippage of plates which occurs under the effect of a certain stress, does not completely disappear on unloading.
Date: November 1930
Creator: Hilbes, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Full-scale tests of metal propellers at high tip speeds

Description: This report describes tests of 10 full-scale metal propellers of several thickness ratios at various tip speeds up to 1,350 feet per second. The results indicate no loss of efficiency up to tip speeds of approximately 1,000 feet per second. Above this tip speed the loss is at a rate of about 10 per cent per 100 feet per second increase relative to the efficiency at the lower speeds for propellers of pitch diameter ratios 0.3 to 0.4. Propellers having sections of small thickness ratio can be run… more
Date: November 5, 1930
Creator: Wood, Donald H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen