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 Serial/Series Title: NACA Restricted Bulletins
 Collection: Technical Report Archive and Image Library
Adjustment of stick force by a nonlinear aileron-stick linkage

Adjustment of stick force by a nonlinear aileron-stick linkage

Date: November 1, 1942
Creator: Lowry, John G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Application of Balancing Tabs to Ailerons

Application of Balancing Tabs to Ailerons

Date: June 1, 1942
Creator: Sears, Richard I.
Description: Analysis was made to determine characteristics required of a balancing-tab system for ailerons in order to reduce aileron stick forces to any desired magnitude. Series of calculations based on section data were made to determine balancing-tab systems of various chord tabs and ailerons that will give, for a particular airplane, zero rate of aileron hinge moment with aileron deflection and yet will produce same maximum rate of roll as a plain unbalanced 15-percent chord aileron of same span. Effects of rolling velocity and of forces in tab link on aileron hinge moments have been included.
Contributing Partner: UNT Libraries Government Documents Department
The belt method for measuring pressure distribution

The belt method for measuring pressure distribution

Date: February 1, 1943
Creator: Corson, Blake W , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Calculation of tab characteristics for flight conditions from wind-tunnel data

Calculation of tab characteristics for flight conditions from wind-tunnel data

Date: April 1, 1942
Creator: Sears, Richard I
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Comparison of tightness of 78 degrees machine-countersunk rivets driven in holes prepared with 78 degrees and 82 degrees countersinking tools

Comparison of tightness of 78 degrees machine-countersunk rivets driven in holes prepared with 78 degrees and 82 degrees countersinking tools

Date: September 1, 1942
Creator: Mandel, Merven W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A description of the Ju 88 airplane anti-icing equipment

A description of the Ju 88 airplane anti-icing equipment

Date: September 1, 1942
Creator: Jackson, Richard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of countersunk depth on the tightness of two types of machine-countersunk rivet

Effect of countersunk depth on the tightness of two types of machine-countersunk rivet

Date: October 1, 1942
Creator: Gottlieb, Robert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effect of normal pressure on the critical compressive stress of curved sheet

Effect of normal pressure on the critical compressive stress of curved sheet

Date: August 25, 1942
Creator: Rafel, Norman
Description: Results are presented of tests of two specimens tested to study the effect of normal pressure on the critical compressive stress for thin curved sheets. These specimens are designated by their respective rib spacings of 10 inches and 30 inches. The relationship between compressive stress and normal pressure at which buckles disappeared is independent of whether the buckles were made to disappear by increase of normal pressure or decrease of compressive stress. (author).
Contributing Partner: UNT Libraries Government Documents Department
Effect of Normal Pressure on the Critical Shear Stress of Curved Sheet

Effect of Normal Pressure on the Critical Shear Stress of Curved Sheet

Date: January 1, 1943
Creator: Rafel, Norman
Description: In order to determine the critical stresses caused by an outward acting pressure on the upper surface of a wing due to the difference in internal and external pressures, torsional tests were made on two curved-sheet specimens subjected to an outward acting normal pressure. Results show that an outward acting normal pressure appreciable raises the critical shear stress for an unstiffened curved sheet; the absolute increase in critical shear stress is slightly greater for a 30 in. rib spacing than for a 10 in. rib spacing.
Contributing Partner: UNT Libraries Government Documents Department
The fatigue strengths of some wrought aluminum alloys

The fatigue strengths of some wrought aluminum alloys

Date: June 1, 1942
Creator: Stickley, G W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Flight investigation of a stall-warning indicator for operation under icing conditions

Flight investigation of a stall-warning indicator for operation under icing conditions

Date: July 1, 1942
Creator: Zalovcik, John A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Hydrodynamic-stability tests of a model of a flying boat and of a planing surface having a small downward projection (hook) on the planing bottom near the step

Hydrodynamic-stability tests of a model of a flying boat and of a planing surface having a small downward projection (hook) on the planing bottom near the step

Date: January 1, 1943
Creator: Benson, James M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Influence of loading condition on piloting technique for spin recovery for pursuit airplanes

Influence of loading condition on piloting technique for spin recovery for pursuit airplanes

Date: June 1, 1942
Creator: Seidman, Oscar
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The preparation of 2, 2, 4, 4-tetramethylpentane

The preparation of 2, 2, 4, 4-tetramethylpentane

Date: May 1942
Creator: Drake, N. L.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Progress summary number I : mechanical properties of flush-riveted joints submitted by five airplane manufacturers

Progress summary number I : mechanical properties of flush-riveted joints submitted by five airplane manufacturers

Date: February 1, 1942
Creator: Brueggeman, William Charles
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A simplified chart for determining Mach number and true airspeed from airspeed-indicator readings

A simplified chart for determining Mach number and true airspeed from airspeed-indicator readings

Date: March 1, 1943
Creator: Ritchie, Virgil S
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A study of the tightness and flushness of machine-countersunk rivets for aircraft

A study of the tightness and flushness of machine-countersunk rivets for aircraft

Date: June 1, 1942
Creator: Gottlieb, Robert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Summary of V-G records taken on transport airplanes from 1932 to 1942

Summary of V-G records taken on transport airplanes from 1932 to 1942

Date: July 1, 1942
Creator: Walker, Walter G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Test data on the shear strength of machine countersunk-riveted joints assembled by an NACA flush-riveting procedure

Test data on the shear strength of machine countersunk-riveted joints assembled by an NACA flush-riveting procedure

Date: December 1, 1942
Creator: Gottlieb, Robert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Tests of a stress-carrying door in compression

Tests of a stress-carrying door in compression

Date: September 1, 1942
Creator: Gottlieb, Robert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Tests of a stressed-carrying door in shear

Tests of a stressed-carrying door in shear

Date: August 1, 1942
Creator: Gottlieb, Robert
Description: None
Contributing Partner: UNT Libraries Government Documents Department
XC-35 gust research project operation in cumulus congestus cloud on July 31, 1941 maximum gust intensities

XC-35 gust research project operation in cumulus congestus cloud on July 31, 1941 maximum gust intensities

Date: April 1, 1942
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
XC-35 gust research project preliminary analysis of the lateral distribution of gust velocity along the span of an airplane

XC-35 gust research project preliminary analysis of the lateral distribution of gust velocity along the span of an airplane

Date: March 1, 1943
Creator: Moskovitz, A I
Description: None
Contributing Partner: UNT Libraries Government Documents Department