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 Decade: 1940-1949
 Collection: National Advisory Committee for Aeronautics Collection
Analysis of flight-performance measurements on a twisted, plywood-covered helicopter rotor in various flight conditions

Analysis of flight-performance measurements on a twisted, plywood-covered helicopter rotor in various flight conditions

Date: June 1948
Creator: Gustafson, F B & Gessow, Alfred
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analysis of the airspeeds and normal accelerations of Martin M-130 airplanes in commercial transport operation

An analysis of the airspeeds and normal accelerations of Martin M-130 airplanes in commercial transport operation

Date: September 1948
Creator: Walker, Walter G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analysis of the airspeed and normal accelerations of Douglas DC-2 airplanes in commercial transport operation

An analysis of the airspeed and normal accelerations of Douglas DC-2 airplanes in commercial transport operation

Date: November 1948
Creator: Walker, Walter G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analysis of the airspeeds and normal accelerations of Sikorsky S-42A airplanes in commercial transport operation

An analysis of the airspeeds and normal accelerations of Sikorsky S-42A airplanes in commercial transport operation

Date: October 1948
Creator: Walker, Walter G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analysis of the airspeeds and normal accelerations of Boeing B-247 and B-247D airplanes in commercial transport operation

An analysis of the airspeeds and normal accelerations of Boeing B-247 and B-247D airplanes in commercial transport operation

Date: December 1948
Creator: Walker, Walter G & Hadlock, Ivan K
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An analysis of the effect of lift-drag ratio and stalling speed on landing-flare characteristics

An analysis of the effect of lift-drag ratio and stalling speed on landing-flare characteristics

Date: September 1949
Creator: Lovell, J Calvin & Lipson, Stanley
Description: None
Contributing Partner: UNT Libraries Government Documents Department
An approximate determination of the lift of slender cylindrical bodies and wing-body combinations at very high supersonic speeds

An approximate determination of the lift of slender cylindrical bodies and wing-body combinations at very high supersonic speeds

Date: October 1948
Creator: Ivey, H Reese & Morrissette, Robert R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Appreciation and prediction of flying qualities

Appreciation and prediction of flying qualities

Date: August 1948
Creator: Phillips, William Hewitt
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analysis, Verification, and Application of Equations and Procedures for Design of Exhaust-Pipe Shrouds

Analysis, Verification, and Application of Equations and Procedures for Design of Exhaust-Pipe Shrouds

Date: December 1947
Creator: Ellerbrock, Herman H.; Wcislo, Chester R. & Dexter, Howard E.
Description: Investigations were made to develop a simplified method for designing exhaust-pipe shrouds to provide desired or maximum cooling of exhaust installations. Analysis of heat exchange and pressure drop of an adequate exhaust-pipe shroud system requires equations for predicting design temperatures and pressure drop on cooling air side of system. Present experiments derive such equations for usual straight annular exhaust-pipe shroud systems for both parallel flow and counter flow. Equations and methods presented are believed to be applicable under certain conditions to the design of shrouds for tail pipes of jet engines.
Contributing Partner: UNT Libraries Government Documents Department
Analytical and experimental performance of an explosion-cycle combustion chamber for a jet-propulsion engine

Analytical and experimental performance of an explosion-cycle combustion chamber for a jet-propulsion engine

Date: September 1948
Creator: Zipkin, Morris A & Lewis, George W , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analytical and experimental investigation of bolted joints

Analytical and experimental investigation of bolted joints

Date: October 1947
Creator: Rosenfeld, Samuel J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Apparent effect of inlet temperature on adiabatic efficiency of centrifugal compressors

Apparent effect of inlet temperature on adiabatic efficiency of centrifugal compressors

Date: February 1948
Creator: Anderson, Robert J; Ritter, William K & Parsons, Shirley R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Annular-jet ejectors

Annular-jet ejectors

Date: November 1949
Creator: Reid, Elliott G
Description: NACA.
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of a number of modified NACA four-digit-series airfoil sections

Aerodynamic characteristics of a number of modified NACA four-digit-series airfoil sections

Date: June 1948
Creator: Loftin, Laurence K , Jr & Cohen, Kenneth S
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of the NACA 8-H-12 airfoil section at six Reynolds numbers from 1.8 x 10(exp 6) to 11.0 x 10(exp 6).

Aerodynamic characteristics of the NACA 8-H-12 airfoil section at six Reynolds numbers from 1.8 x 10(exp 6) to 11.0 x 10(exp 6).

Date: December 1949
Creator: Schaefer, Raymond F & Smith, Hamilton A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamics characteristics of 24 NACA 16-series airfoils at Mach numbers between 0.3 and 0.8

Aerodynamics characteristics of 24 NACA 16-series airfoils at Mach numbers between 0.3 and 0.8

Date: September 1948
Creator: Lindsey, W F; Stevenson, D B & Daley, Bernard N
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic characteristics of 15 NACA airfoil sections at seven Reynolds numbers from 0.7 x 10(exp 6) to 9.0 x 10(exp 6)

Aerodynamic characteristics of 15 NACA airfoil sections at seven Reynolds numbers from 0.7 x 10(exp 6) to 9.0 x 10(exp 6)

Date: October 1949
Creator: Loftin, Laurence K , Jr & Smith, Hamilton A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic properties of slender wing-body combinations at subsonic, transonic, and supersonic speeds

Aerodynamic properties of slender wing-body combinations at subsonic, transonic, and supersonic speeds

Date: July 1948
Creator: Spreiter, John R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Aerodynamic Properties of Cruciform-Wing and Body Combinations at Subsonic, Transonic, and Supersonic Speeds

Aerodynamic Properties of Cruciform-Wing and Body Combinations at Subsonic, Transonic, and Supersonic Speeds

Date: June 1949
Creator: Spreiter, John R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Determination of rate, area, and distribution of impingement of waterdrops on various airfoils from trajectories obtained on the differential analyzer

Determination of rate, area, and distribution of impingement of waterdrops on various airfoils from trajectories obtained on the differential analyzer

Date: February 16, 1949
Creator: Guibert, A. G.; Janssen, E. & Robbins, W. M.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Moments of cambered round bodies

Moments of cambered round bodies

Date: August 1, 1949
Creator: Kempf, Gunther
Description: Results are presented for the moments and position of force centers of a series of cambered round bodies derived from a torpedo-like body of revolution. The effects of placing fins on the rear of the body of revolution are also included.
Contributing Partner: UNT Libraries Government Documents Department
Determination of rate, area, and distribution of impingement of of waterdrops on various airfoils from trajectories obtained on the differential analyzer

Determination of rate, area, and distribution of impingement of of waterdrops on various airfoils from trajectories obtained on the differential analyzer

Date: February 16, 1949
Creator: Guibert, A. G.; Janssen, E. & Robbins, W. M.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Effects of Ice Formations on Airplane Performance in Level Cruising Flight

Effects of Ice Formations on Airplane Performance in Level Cruising Flight

Date: May 1, 1948
Creator: Preston, G. Merritt & Blackman, Calvin C.
Description: A flight investigation in natural icing conditions was conducted by the NACA to determine the effect of ice accretion on airplane performance. The maximum loss in propeller efficiency encountered due to ice formation on the propeller blades was 19 percent. During 87 percent of the propeller icing encounters, losses of 10 percent or less were observed. Ice formations on all of the components of the airplane except the propellers during one icing encounter resulted in an increase in parasite drag of the airplane of 81 percent. The control response of the airplane in this condition was marginal.
Contributing Partner: UNT Libraries Government Documents Department
Preliminary wind-tunnel investigation of the effect of area suction on the laminar boundary layer over an NACA 64A010 airfoil

Preliminary wind-tunnel investigation of the effect of area suction on the laminar boundary layer over an NACA 64A010 airfoil

Date: April 26, 1948
Creator: Braslow, A. L.; Visconti, F. & Burrows, D. L.
Description: None
Contributing Partner: UNT Libraries Government Documents Department