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Aerodynamic, structural, and trajectory analysis of ASTRID-1 vehicle (open access)

Aerodynamic, structural, and trajectory analysis of ASTRID-1 vehicle

The Johns Hopkins University/Applied Physics Laboratory, JHU/API, in support of Lawrence Livermore National Laboratory, LLNL, is conducting aerodynamic, trajectory, and structural analysis of the Advanced Single Stage Technology Rapid Insertion Demonstration (ASTRID) vehicle, being launched out of Vandenberg Air Force Base (VAFB) in February 1994. The launch is designated ASTRID-1 and is the first in a series of three that will be launched out of VAFB. Launch dates for the next two flights have not been identified, but they are scheduled for the 1994-1995 time frame. The primary goal of the ASTRID-1 flight is to test the LLNL light weight thrust on demand bi-propellant pumped divert propulsion system. The system is employed as the main thrusters for the ASTRID-1 vehicle and uses hydrazine as the mono-propellant. The major conclusions are: (1) The vehicle is very stable throughout flight (stability margin = 17 to 24 inches); (2) The aerodynamic frequency and the roll rate are such that pitch-roll interactions will be small; (3) The high stability margin combined with the high launcher elevation angle makes the vehicle flight path highly sensitive to perturbations during the initial phase of flight, i.e., during the first second of flight after leaving the rail; (4) …
Date: February 10, 1994
Creator: Glover, L. S.; Iwaskiw, A. P.; Oursler, M. A.; Perini, L. L. & Schaefer, E. D.
Object Type: Report
System: The UNT Digital Library
[News Script: Laos] (open access)

[News Script: Laos]

Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about peace demonstrations turning violent.
Date: February 10, 1971, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
Texas Broilers: For Week Ending February 6, 1988 (open access)

Texas Broilers: For Week Ending February 6, 1988

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending January 2 to the week ending February 6, during 1987 and 1988 for broiler eggs set, chicks hatched, and chicks placed.
Date: February 10, 1988
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
[Letter from Elizabeth Upshur Teackle to her husband, Littleton Dennis Teackle, February 10, 1812] (open access)

[Letter from Elizabeth Upshur Teackle to her husband, Littleton Dennis Teackle, February 10, 1812]

Letter from Elizabeth Upshur Teackle to her husband, Littleton D. Teackle.
Date: February 10, 1812
Creator: Teackle, Elizabeth Uphsur
Object Type: Letter
System: The Portal to Texas History