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NACA Advanced Confidential Report
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NACA Aircraft Circulars
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Technical Report Archive and Image Library
A Brief Study of the Speed Reduction of Overtaking Airplanes by Means of Air Brakes, Special Report
Date: May 1, 1942
Creator: Pearson, H. A.
Description: As an aid to airplane designers interested in providing pursuit airplanes with decelerating devices intended to increase the firing time when overtaking another airplane, formulas are given relating the pertinent distances and speeds in horizontal flight to the drag increase required. Charts are given for a representative parasite-drag coefficient from which the drag increase, the time gained, and the closing distance may be found. The charts are made up for three values of the ratio of the final speed of the pursuing airplane to the speed of the pursued airplane and for several values of the ratio of the speed of the pursued airplane to the initial speed of the pursuing airplane. Charts are also given indicating the drag increases obtainable with double split flaps and with conventional propellers. The use of the charts is illustrated by an example in which it is indicated that either double split flaps or, under certain ideal conditions, reversible propellers should provide the speed reductions required.
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc65165/
Calculated and measured turning performance of a Navy F2A-3 airplane as affected by the use of flaps
Date: September 1, 1943
Creator: Kauffman, William M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61133/
Cascade investigation of buckets for a modern aircraft turbosupercharger
Date: November 1, 1944
Creator: Erwin, John R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc62080/
Charts for determining propeller efficiency
Date: September 1, 1944
Creator: Talkin, Herbert W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc62143/
Charts for estimation of the characteristics of a helicopter rotor in forward flight I : profile drag-lift ratio for untwisted rectangular blades
Date: August 1, 1944
Creator: Gustafson, F B
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61833/
Charts for helicopter-performance estimation
Date: August 1, 1945
Creator: Talkin, Herbert W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61830/
Charts for the determination of wing torsional stiffness required for specified rolling characteristics or aileron reversal speed
Date: December 1, 1944
Creator: Aiken, William S , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61277/
Climb and high-speed tests of a Curtiss number 714-1C2-12 four-blade propeller on the Republic P-47C airplane
Date: December 1, 1944
Creator: Vogeley, A W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc62125/
Collection of balanced-aileron test data
Date: January 1, 1944
Creator: Rogallo, F M
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61607/
A comparison at high speed of the aerodynamic merits of models of medium bombers having thickened wing roots and having wings with nacelles
Date: December 1, 1943
Creator: Draley, Eugene C
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Permallink:digital.library.unt.edu/ark:/67531/metadc61167/