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Herman Heep Ranch

View of building on Herman Heep Ranch.
Date: August 29, 1957
Creator: Douglass, Neal
Object Type: Photograph
System: The Portal to Texas History

Mr. Leutwyler in front of store

Mr. Leutwyler standing in front of his jewelery store. Remodeling Sale sign in window.
Date: March 29, 1957
Creator: Douglass, Neal
Object Type: Photograph
System: The Portal to Texas History
The Tulia Herald (Tulia, Tex), Vol. 49, No. 35, Ed. 1, Thursday, August 29, 1957 (open access)

The Tulia Herald (Tulia, Tex), Vol. 49, No. 35, Ed. 1, Thursday, August 29, 1957

Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date: August 29, 1957
Creator: Baggarly, Herbert Milton
Object Type: Newspaper
System: The Portal to Texas History
The Bartlett Tribune and News (Bartlett, Tex.), Vol. 70, No. 22, Ed. 1, Friday, March 29, 1957 (open access)

The Bartlett Tribune and News (Bartlett, Tex.), Vol. 70, No. 22, Ed. 1, Friday, March 29, 1957

Daily newspaper from Bartlett, Texas that includes local, state and national news along with extensive advertising.
Date: March 29, 1957
Creator: Ford, Robert C.
Object Type: Newspaper
System: The Portal to Texas History
The Bartlett Tribune and News (Bartlett, Tex.), Vol. 71, No. 5, Ed. 1, Friday, November 29, 1957 (open access)

The Bartlett Tribune and News (Bartlett, Tex.), Vol. 71, No. 5, Ed. 1, Friday, November 29, 1957

Daily newspaper from Bartlett, Texas that includes local, state and national news along with extensive advertising.
Date: November 29, 1957
Creator: Ford, Nora Mae
Object Type: Newspaper
System: The Portal to Texas History
The Stephens County Times (Breckenridge, Tex.), Vol. 7, No. 35, Ed. 1 Thursday, August 29, 1957 (open access)

The Stephens County Times (Breckenridge, Tex.), Vol. 7, No. 35, Ed. 1 Thursday, August 29, 1957

Weekly newspaper from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: August 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 215, Ed. 1 Tuesday, October 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 215, Ed. 1 Tuesday, October 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: October 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 237, Ed. 1 Friday, November 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 237, Ed. 1 Friday, November 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: November 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 257, Ed. 1 Sunday, December 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 257, Ed. 1 Sunday, December 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: December 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 172, Ed. 1 Thursday, August 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 172, Ed. 1 Thursday, August 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: August 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 194, Ed. 1 Sunday, September 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 194, Ed. 1 Sunday, September 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: September 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 106, Ed. 1 Wednesday, May 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 106, Ed. 1 Wednesday, May 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: May 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 20, Ed. 1 Tuesday, January 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 20, Ed. 1 Tuesday, January 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: January 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 63, Ed. 1 Friday, March 29, 1957 (open access)

Breckenridge American (Breckenridge, Tex.), Vol. 37, No. 63, Ed. 1 Friday, March 29, 1957

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: March 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The J-TAC (Stephenville, Tex.), Vol. 37, No. 7, Ed. 1 Tuesday, October 29, 1957 (open access)

The J-TAC (Stephenville, Tex.), Vol. 37, No. 7, Ed. 1 Tuesday, October 29, 1957

Weekly student newspaper from Tarleton State College in Stephenville, Texas that includes local, state and campus news along with advertising.
Date: October 29, 1957
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Rusk Cherokeean. (Rusk, Tex.), Vol. 110, No. 10, Ed. 1 Thursday, August 29, 1957 (open access)

The Rusk Cherokeean. (Rusk, Tex.), Vol. 110, No. 10, Ed. 1 Thursday, August 29, 1957

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: August 29, 1957
Creator: Whitehead, E. H.
Object Type: Newspaper
System: The Portal to Texas History
High-Altitude Performance of J71-A-11 Turbojet Engine and Its Components Using JP-4 and Gaseous-Hydrogen Fuels (open access)

High-Altitude Performance of J71-A-11 Turbojet Engine and Its Components Using JP-4 and Gaseous-Hydrogen Fuels

Report presenting data to determine the component and overall engine performance up to an altitude limit for the J71-A-11 (600-B36) turbojet engine. Engine operation using JP-4 fuel at Mach number 0.8 was satisfactory up to an altitude of about 60,000 to 65,000 feet, and engine operation with marginal combustion stability was maintained to an altitude of about 80,000 feet. Results regarding the altitude operating limits, component performance, overall engine performance, contribution of individual component losses to overall engine performance losses, exhaust-nozzle-area requirements, and altitude performance at rated engine conditions are provided.
Date: May 29, 1957
Creator: Smith, Ivan D. & Saari, Martin J.
Object Type: Report
System: The UNT Digital Library
Calculation of External-Store Loads and Correlation With Experiment (open access)

Calculation of External-Store Loads and Correlation With Experiment

Memorandum presenting a theory for evaluating the mutual interference between a wing and tip tank as extended to apply to store-pylon configurations. By using the theory and the flow-field formulas of a previous report, theoretical store-pylon side-force estimates have been made for a number of store-pylon configurations. Results regarding the theory for store-pylon side force, scope of test configurations, contribution of store and pylon to combined load, effect of store spanwise location on the store-pylon side-force coefficient, effect of pylon sweep and store chordwise location, effect of sideslip on the store-pylon side-force coefficient, effect of fins on store side-force coefficient, and interference effects between inboard and outboard stores are provided.
Date: July 29, 1957
Creator: Bobbitt, Percy J.; Carlson, Harry W. & Pearson, Albin O.
Object Type: Report
System: The UNT Digital Library
Drag Minimization for Wings and Bodies in Supersonic Flow (open access)

Drag Minimization for Wings and Bodies in Supersonic Flow

"The minimization of inviscid fluid drag is studied for aerodynamic shapes satisfying the conditions of linearized theory, and subject to imposed constraints on lift, pitching moment, base area, or volume. The problem is transformed to one of determining two-dimensional potential flows satisfying either Laplace's or Poisson's equations with boundary values fixed by the imposed conditions. A general method for determining integral relations between perturbation velocity components is developed. This analysis is not restricted in application to optimum cases; it may be used for any supersonic wing problem" (p. 1213).
Date: November 29, 1957
Creator: Heaslet, Max A. & Fuller, Franklyn B.
Object Type: Report
System: The UNT Digital Library
Effects of Inlet Modification and Rocket-Rack Extension on the Longitudinal Trim and Low-Lift Drag of the Douglas F5D-1 Airplane as Obtained with a 0.125-Scale Rocket-Boosted Model Between Mach Numbers of 0.81 and 1.64: TED No. NACA AD 399 (open access)

Effects of Inlet Modification and Rocket-Rack Extension on the Longitudinal Trim and Low-Lift Drag of the Douglas F5D-1 Airplane as Obtained with a 0.125-Scale Rocket-Boosted Model Between Mach Numbers of 0.81 and 1.64: TED No. NACA AD 399

From Summary: "A flight investigation was conducted to determine the effects of inlet modification and rocket-rack extension on the longitudinal trim and low-lift drag of the Douglas F5D-1 airplane. The investigation was conducted with a 0.125-scale rocket-boosted model between Mach Numbers of 0.81 and 1.64. This paper presents the changes in trim angle of attack, trim lift coefficient, and low-lift drag caused by the modified inlets alone over a small part of the test Mach number range and by a combination of the modified inlets and extended rocket racks throughout the remainder of the test."
Date: April 29, 1957
Creator: Hastings, Earl C., Jr. & Dickens, Waldo L.
Object Type: Report
System: The UNT Digital Library
High-Altitude Performance of J71-A-11 Turbojet Engine and Its Components Using JP-4 and Gaseous-Hydrogen Fuels (open access)

High-Altitude Performance of J71-A-11 Turbojet Engine and Its Components Using JP-4 and Gaseous-Hydrogen Fuels

Memorandum presenting an investigation of the J71-A-11 (600-B36) turbojet engine conducted in an altitude wind tunnel, and more specifically the component and overall engine performance up to the altitude limit imposed by the use of MIL-F-5624A, grade JP-4, fuel. The data were then extended to higher altitudes by the use of gaseous-hydrogen fuel. Results regarding altitude operating limits, component performance, overall engine performance, contribution of individual component losses to overall engine performance losses, exhaust-nozzle-area requirements, and altitude performance at rated engine conditions are provided.
Date: May 29, 1957
Creator: Smith, Ivan D. & Saari, Martin J.
Object Type: Report
System: The UNT Digital Library
Exploratory Tests of the Behavior of Several Materials in a Supersonic Air Jet at 4,000 Degrees Fahrenheit (open access)

Exploratory Tests of the Behavior of Several Materials in a Supersonic Air Jet at 4,000 Degrees Fahrenheit

"Several materials have been tested in the ceramic-heated jet (laboratory model) at a Mach number of 1.96 with a stagnation temperature of approximately 4,000 degrees Fahrenheit. Test models made of molybdenum were less affected by temperature than titanium, stainless steel, and an alloy of 90 percent tungsten, 6 percent nickel, and 4 percent copper. Titanium and steel burn with highly exothermic reactions when subjected to the 4,000 degrees Fahrenheit air jet" (p. 1).
Date: July 29, 1957
Creator: Hopko, Russell N. & Trout, Otto F., Jr.
Object Type: Report
System: The UNT Digital Library
Investigation of the Low-Speed Performance and Static Longitudinal Stability and Control Characteristics of a 60 Degree Delta-Wing-Body-Tail Combination With Blowing Over Trailing-Edge Flaps (open access)

Investigation of the Low-Speed Performance and Static Longitudinal Stability and Control Characteristics of a 60 Degree Delta-Wing-Body-Tail Combination With Blowing Over Trailing-Edge Flaps

Report presenting an investigation in the full-scale tunnel to determine the effects of boundary-layer control by blowing over trailing-edge flaps on the low-speed performance and static longitudinal stability characteristics of a 60 degree delta wing-body-tail combination with variable flap positioning and leading-edge devices. Results regarding the flap lift characteristics at zero angle of attack, tail-off characteristics, tail-on characteristics, and low-speed performance characteristics are provided.
Date: July 29, 1957
Creator: Scallion, William I. & Cannon, Michael D.
Object Type: Report
System: The UNT Digital Library
Exploratory investigation of aerodynamic effects of external combustion of aluminum borohydride in airstream adjacent to flat plate in Mach 2.46 tunnel (open access)

Exploratory investigation of aerodynamic effects of external combustion of aluminum borohydride in airstream adjacent to flat plate in Mach 2.46 tunnel

Report presenting pressure distributions associated with stable combustion of aluminum borohydride in the supersonic stream adjacent to a short, 13-inch chord, and an extended, 25-inch chord, flat-plate model. High-speed direct and schileren motion pictures of the flame and associated shock waves were taken. Results regarding the description of the combustion and associated stream disturbances, static-pressure change at model reference surface caused by combustion, lift forces resulting from combustion, base pressure change caused by combustion, stream-parameter measurements during combustion, and surface temperature changes during combustion are provided.
Date: July 29, 1957
Creator: Dorsch, Robert G.; Serafini, John S. & Fletcher, Edward A.
Object Type: Report
System: The UNT Digital Library