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Resume of the Activities of the Aeronautical Experimental Institute, Rome, During the Months of May, June, July and August 1921
This report is a listing of the different studies conducted by the Institute in May thru August of 1921. The aerodynamical section studied: the aerodynamical characteristics of a very thick concave-convex wing; the disturbance caused in a tunnel by the presence of a disk, placed in relation with a transversely infinite barrier; vertical pressure in a wing of low head resistance; the drag caused by two small doors in the sides of the fuselage. Some other studies conducted by the Institute included: depressions in the interior of the model of a wing; the influence of a conical casing fitted with helicoidal flanges centered on the hub of the propeller; the influence of the velocity of translation on the aerodynamical effects of the propeller; and the influence of a honeycomb placed in the tunnel.
Date:
July 1922
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Skin frictional resistance of plane surfaces in air: Abstract of recent German tests, with notes
Given here is the most recent research on skin frictional resistance of plane surfaces in air that was conducted by Dr. Wieselsberger under the direction of Dr. Prandtl of Gottingen University. In all, 16 models were tested. These were divided into four groups, as follows: 1) cloth, in the original condition; 2) cloth, with the nap singed off; 3) cloth, with three coats of dope; and 4) cloth, with six coats of dope. Each group consisted of four models of uniform width, 1 meter, and of lengths of 0.5, 1.0, 1.5, and 2.0 meters.
Date:
July 1922
Creator:
Diehl, W. S.
Object Type:
Report
System:
The UNT Digital Library
The Stresses in Columns Under Combined Axial and Side Loads
The problem before us is to determine the total stresses in an axially loaded column of any degree of restraint which is also subject to transverse bending both from a uniformly distributed load and from concentrated loads. The solution of this problem is of special importance in the design of aircraft which consist of slender columns" (p. 1).
Date:
July 1922
Creator:
Arnstein, Karl & Truscott, Starr
Object Type:
Report
System:
The UNT Digital Library
This Summer's Gliding Meets
This article discusses the upcoming gliding meets in France and Germany in the summer of 1922. Restrictions of design, prize money, and new innovations are all discussed.
Date:
July 1922
Creator:
Warner, Edward P.
Object Type:
Report
System:
The UNT Digital Library