Daily newspaper from Abilene, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Abilene, Texas that includes local, state, and national news along with advertising.

From Summary: "A comparison of optimum profiles determined by the shock-expansion method of this report with corresponding profiles determined by the linearized-theory method of a previous report shows only small differences in shape at Mach numbers up to infinity even though the linearized theory at high supersonic Mach numbers breaks down completely insofar as the drag of the profile is concerned. Curves are presented which show that for thin airfoils the use of a trailing-edge thickness considerably greater than the theoretical optimum can result in an excessive drag penalty at moderate supersonic Mach numbers, though not at hypersonic Mach numbers."

This report discusses the presence of corrosion products upon aluminum process tubes removed from wet portions of F Pile which led to the suspicion that the tubes might be corroding at an accelerated rate because of water entrapped in the channels between the tubes and the graphite blocks. Corrosion was especially noted on those tubes that were tightly stuck within the blocks. Analysis of the corrosion products showed that the major constituent was a hydrated aluminum oxide, containing iron oxide, calcium carbonate, and other substances in lower concentrations. This led to placement of an order for the anodizing of 200 process tubes.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Daily newspaper (except Sunday) from Breckenridge, Texas that includes local, state and national news along with extensive advertising.

Daily newspaper from Brenham, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Chickasha, Oklahoma that includes local, state and national news along with advertising.

Weekly newspaper from Abilene, Texas that includes news and information about the Churches of Christ along with advertising.

Daily newspaper from Cleburne, Texas that includes local, state, and national news along with advertising.

Weekly newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Levelland, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Denton, Texas that includes local, state, and national news along with advertising.

From Summary: "The longitudinal and lateral-directional dynamic-response characteristics of a 35 degree swept-wing fighter-type airplane determined from flight measurements are presented and compared with predictions based on theoretical studies and wind-tunnel data. Flights were made at an altitude of 35,000 feet covering the Mach number range of 0.50 to 1.04. A limited amount of lateral-directional data were also obtained at 10,000 feet. The flight consisted essentially of recording transient responses to pilot-applied pulsed motions of each of the three primary control surfaces. These transient data were converted into frequency-response form by means of the Fourier transformation and compared with predicted responses calculated from the basic equations. Experimentally determined transfer functions were used for the evaluation of the stability derivatives that have the greatest effect on the dynamic response of the airplane. The values of these derivatives, in most cases, agreed favorably with predictions over the Mach number range of the test."

Report presenting testing of a wing-fuselage configuration with a wing of 45 degrees sweepback of the 0.25-chord line, aspect ratio of 4, taper ratio of 0.6, and NACA 65A006 airfoil sections in aluminum and steel at a range of Mach numbers and angles of attack to determine effects of wing elasticity. Results regarding the relative effects of bending and torsion, wing-tip twist, aerodynamic characteristics, and some theoretical considerations are provided.

Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.

Report presenting an investigation in the supersonic wind tunnel to determine some of the base pressure characteristics of related bodies of revolution at zero angle of attack. The basic body shape was a 10-caliber tangent ogive nose with a cylindrical afterbody, while other shapes tested had either a blunt-nosed profile or a boat-tailed afterbody. Results regarding the variation of pressure over the base, variation of base pressure with Reynolds number, effect of nose and afterbody shape, variation of base pressure with Mach number, and correlation of base pressure data are provided.

Report presenting a flight investigation to determine the longitudinal stability of a scale model of the Northrop MX-775A missile at low lift coefficients through a range of Mach numbers. Results regarding the trimmed flight and model pitching are provided.

Report presenting an investigation of a 1/30-scale model of the Grumman XS2F-1 airplane in the 20-foot free-spinning tunnel to determine the erect spin and recovery characteristics of the model in the design flight condition and with the center of gravity at 30 percent of the mean aerodynamic chord. Results regarding the erect spins, inverted spins, spin-recovery parachutes, influence of power, control forces, landing condition, and recommended recovery technique are provided.

Daily newspaper from Gainesville, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Gladewater, Texas that includes local, state, and national news along with advertising.

Letter from Harris Leon Kempner to Dave Nathan informing about enclosing subscription card for Community Chest.