Application of an ultraviolet spectrophotometric method to the estimation of alkylnaphthalenes in 10 experimental jet-propulsion fuels (open access)

Application of an ultraviolet spectrophotometric method to the estimation of alkylnaphthalenes in 10 experimental jet-propulsion fuels

Report presenting the combustion efficiencies of 10 experimental jet-propulsion fuels that are approximately 200 degrees Fahrenheit cuts of five selected crudes available in large quantities in a turbojet engine combustor at altitude conditions.
Date: April 30, 1947
Creator: Cleaves, Alden P. & Carver, Mildred S.
Object Type: Report
System: The UNT Digital Library
Progress Report for the Month of April, 1947 (open access)

Progress Report for the Month of April, 1947

This report covers progress in chemical and spectrographic analysis, chemical work, beta-counting methods of analysis, and ore-dressing and pyrometallurgical studies.
Date: April 30, 1947
Creator: Center, E. J.; Nelson, H. R.; Pray, H. A. & Richardson, A. C.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: V-172 (open access)

Texas Attorney General Opinion: V-172

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Constitutionality of H.B. No. 779, 50th Legislature.
Date: April 30, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Fuel Tests on an I-16 Jet-Propulsion Engine at Static Sea-Level Conditions (open access)

Fuel Tests on an I-16 Jet-Propulsion Engine at Static Sea-Level Conditions

Memorandum presenting an investigation of the effect of fuel composition and boiling point on the performance of the type of I-16 jet-propulsion engine. Testing occurred with 14 fuels embodying different types of hydrocarbon and with a range of boiling points. The results indicated that fuel composition and boiling range have a negligible effect on engine thrust, rotor speed, and gas temperatures for the principal types of hydrocarbon fuel when used for short periods of time.
Date: April 29, 1947
Creator: Bolz, Ray E. & Meigs, John B.
Object Type: Report
System: The UNT Digital Library
Investigation of carbon deposition in an I-16 jet-propulsion engine at static sea-level conditions (open access)

Investigation of carbon deposition in an I-16 jet-propulsion engine at static sea-level conditions

Report presenting a study of the effect of fuel properties on carbon deposition in jet-propulsion engine combustors using seven fuels: kerosene, Diesel fuel oil, toluene, xylene, 62-octane gasoline, a commercial solvent, and AN-F-32 (JP-1) in an I-16 engine at static sea-level conditions and constant rotor speed. Results regarding the reproducibility of data, reduced exhaust-jet-nozzle area, and fuel comparison are provided.
Date: April 29, 1947
Creator: Jonash, Edmund R.; Barnett, Henry C. & Stricker, Edward G.
Object Type: Report
System: The UNT Digital Library
A Preliminary Study of Ram-Actuated Cooling Systems for Supersonic Aircraft (open access)

A Preliminary Study of Ram-Actuated Cooling Systems for Supersonic Aircraft

An analysis has been made of the characteristics of several cooling cycles suitable for cockpit cooling of supersonic aircraft. All the cycles considered utilize the difference between dynamic and ambient static pressure to actuate the cooling system and require no additional power source. The results of the study indicate that as flight speeds become greater, increasingly complex systems are required to reduce the altitudes above approximately 35,000 feet, a system composed of an externally loaded expansion turbine in conjunction with a supersonic diffuser would maintain tolerable ventilating air temperature, at least up to a flight Mach number of 2. The most complex system considered,composed of compressor, intercooler, and expansion turbine with the intercooler cooling air decreased in temperature by expansion through an auxiliary turbine is capable of maintaining a ventilation air temperature less than ambient temperature up to a flight Mach number of 3.7.
Date: April 29, 1947
Creator: Stalder, Jackson R. & Wadleigh, Kenneth R.
Object Type: Report
System: The UNT Digital Library
An Investigation of Convergent-Divergent Diffusers at Mach Number 1.85 (open access)

An Investigation of Convergent-Divergent Diffusers at Mach Number 1.85

An investigation has been conducted in the Cleveland 18- by 18-inch supersonic tunnel at a Mach number of 1.85 and angles of attack from 0 deg to 5 deg to determine optimum design configurations for a convergent-divergent type of supersonic diffuser with a subsonic diffuser of 5 deg included divergence angle. Total pressure recoveries in excess of theoretical recovery across a normal shock at a free-stream Mach number of 1.85 wore obtained with several configurations.
Date: April 28, 1947
Creator: Wyatt, DeMarquis D. & Hunczak, Henry R.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: V-166 (open access)

Texas Attorney General Opinion: V-166

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Can penalty and interest be collected on the taxes on land which has not been assessed or rendered for taxation when placed on the tax rolls in accordance with Article 7207 of V.C.S. of Texas? And taxability of corporate stock in the hands of residents of this State.
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-167 (open access)

Texas Attorney General Opinion: V-167

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Are the Texas lottery laws violated under a plan whereby a merchant awards a washing machine by chance to a registrant without requiring the registrant to be a customer or purchase merchandise?
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-168 (open access)

Texas Attorney General Opinion: V-168

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Constitutionality of H.B. 660 relative to refunding of school bonds, and construction thereof with respect to authority of the Board of Education to exchange for refunding bonds.
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-169 (open access)

Texas Attorney General Opinion: V-169

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Issuance of revenue bonds by a water control and improvement district and pledge of income of irrigation system in payment thereof.
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-170 (open access)

Texas Attorney General Opinion: V-170

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: The refund of motor fuel tax to one converting naphtha to lighter fluid for marketing in small containers.
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-171 (open access)

Texas Attorney General Opinion: V-171

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Canvassing of election returns of trustee election in the rural high school districts.
Date: April 28, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Wind-tunnel development of optimum double-slotted-flap configurations for seven thin NACA airfoil sections (open access)

Wind-tunnel development of optimum double-slotted-flap configurations for seven thin NACA airfoil sections

Report presenting an investigation in the two-dimensional low-turbulence tunnels to develop optimum double-slotted-flap configurations for seven thin NACA airfoil sections. Each was equipped with the same flaps and measured at the same Reynolds numbers. Results regarding the lift characteristics and pitching moment are provided.
Date: April 28, 1947
Creator: Cahill, Jones F. & Racisz, Stanley F.
Object Type: Report
System: The UNT Digital Library
Altitude-Wind-Tunnel Investigation of the 19B-2, 19B-8 and 19XB-1 Jet- Propulsion Engines: 4 - Analysis of Compressor Performance (open access)

Altitude-Wind-Tunnel Investigation of the 19B-2, 19B-8 and 19XB-1 Jet- Propulsion Engines: 4 - Analysis of Compressor Performance

"Investigations were conducted in the Cleveland altitude wind tunnel to determine the performance and operational characteristics of the 19B-2, 19B-8, and 19XS-1 turbojet engines. One objective was to determine the effect of altitude, flight Mach number, and tail-pipe-nozzle area on the performance characteristics of the six-stage and ten-stage axial-flow compressors of the 19B-8 and 19XB-1 engines, respectively, The data were obtained over a range of simulated altitudes and flight Mach numbers" (p. 1).
Date: April 25, 1947
Creator: Dietz, Robert O. & Kuenzig, John K.
Object Type: Report
System: The UNT Digital Library
Determination of reactivity coefficients and rod calibration of D Pile. Interim report on Production Test No. 105-97-P (open access)

Determination of reactivity coefficients and rod calibration of D Pile. Interim report on Production Test No. 105-97-P

The test of March 7, 1947 was planned as a check on power coefficient values; however, an analysis of reactivity data gave evidence of a considerable flattening of ``A`` rod in the region between 0--75 inches out. A second test of longer duration was therefore made on April 1, 1947 in order to obtain a check calibration of this portion of the control rod. The results of this test verified the flattening of this portion of ``A`` rod. The redetermined power coefficients based on new rod calibrations are given.
Date: April 25, 1947
Creator: Kruesi, F. E.
Object Type: Report
System: The UNT Digital Library
Effects of Compressibility on the Characteristics of Five Airfoils (open access)

Effects of Compressibility on the Characteristics of Five Airfoils

Report presenting the results of pressure-distribution tests to determine the effects of compressibility on the characteristics of the NACA 66,2-215, 66,2-015, 65(216)-418, 16-212, and 23015 airfoil sections. Schileren photographs of the air flow and data on the wake characteristics was also obtained.
Date: April 25, 1947
Creator: Daley, Bernard N.
Object Type: Report
System: The UNT Digital Library
Flight Observations of Aileron Flutter at High Mach Numbers as Affected by Several Modifications (open access)

Flight Observations of Aileron Flutter at High Mach Numbers as Affected by Several Modifications

Report presenting an investigation of aileron flutter associated with high-speed flight. When the aileron control system was modified by installing a hydraulic irreversible unit, it was possible to delay aileron flutter and reduce its amplitude. Results regarding the aileron flutter with and without the modifications, analysis of the time histories for the control systems, and relation between aileron upfloat and flutter are provided.
Date: April 25, 1947
Creator: Spreiter, John R.; Galster, George M. & Cooper, George E.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: V-162 (open access)

Texas Attorney General Opinion: V-162

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: Exemption of insecticide which has been registered with the Commissioner of Agriculture, as agricultural insecticide, from registration with the State Health Officer as livestock insecticide.
Date: April 25, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-163 (open access)

Texas Attorney General Opinion: V-163

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: The designation of notes receivable as "property" within the meaning of Article XII, Section 6, Constitution of Texas.
Date: April 25, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: V-165 (open access)

Texas Attorney General Opinion: V-165

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Price Daniel, regarding a legal question submitted for clarification: The applicability of the Securities Act to a group retirement plan issued by a non-profit group.
Date: April 25, 1947
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Air-Flow Behavior Over the Wing of an XP-51 Airplane as Indicated by Wing-Surface Tufts at Subcritical and Supercritical Speeds (open access)

Air-Flow Behavior Over the Wing of an XP-51 Airplane as Indicated by Wing-Surface Tufts at Subcritical and Supercritical Speeds

Report presenting the air-flow behavior over the wing of an XP-51 airplane including photographs of tufts attached to the wing surface and chordwise pressure distributions. A comparison of tuft studies from flight results are compared with results from wind-tunnel testing. Three types of flow were observed: steady flow, unsteady flow, and break-away flow are provided.
Date: April 24, 1947
Creator: Beeler, De E.
Object Type: Report
System: The UNT Digital Library
Hanford Engineer Works technical progress letter No. 146, April 13--19 (open access)

Hanford Engineer Works technical progress letter No. 146, April 13--19

Further data on the changes in length and weight of expanded graphite samples which were exposed in the pile in atmospheres of oxygen, carbon dioxide, and helium show that all three gases produce roughly the same shrinkage and weigh loss. This result is unexpected in that there is no precedent for such behavior in a helium atmosphere; however, it was found that water vapor had entered the helium stream by some unknown means and had condensed on the plugs at the inlet end of the tube. This opens the possibility that the graphite in the helium-filled tube was attacked by the reaction C + H{sub 2}O = CO + H{sub 2}. This experiment is to be repeated. The data are tabulated in this report. The expansion of the graphite before the experimental exposure was in all cases very nearly 0.6% per 1000 MD/CT. Both the D and the F Piles were scrammed by a power surge on April 14. Eight of the vertical rods did not drop into the D Pile. These and subsequent rod difficulties delayed the start up to such an extent that the reactivity losses associated with the build up of xenon poison and the cooling of …
Date: April 24, 1947
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Measurements of Static and Total Pressure Throughout the Transonic Speed Range as Obtained from an Airspeed Head Mounted on a Freely Falling Body (open access)

Measurements of Static and Total Pressure Throughout the Transonic Speed Range as Obtained from an Airspeed Head Mounted on a Freely Falling Body

"Results of tests of an airspeed head mounted on a freely falling body are presented in preliminary form. Measurements were made throughout the transonic speed range. Details and dimensions of the airspeed head and the body are given in figure 1" (p. 1).
Date: April 24, 1947
Creator: Mathews, C. W. & Thompson, J. R.
Object Type: Report
System: The UNT Digital Library