NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 1861-1880 of 3613
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NASA NPD 7500.1 REV C
Abstract: APPLICABILITY
a. This NPD is applicable to NASA Headquarters, NASA Centers, including Component Facilities, and Technical and Service Support Centers.
b. This language applies to JPL, other ... -
NASA-TM-87659
Abstract: A wind-tunnel investigation has been conducted at Mach numbers of 1.50, 2.16, and 2.86 to obtain axial-force data on a metric rectangular-box cavity with various length-to-depth ratios. The model was tested at angles of ...Subject(s) : AERODYNAMIC , ANGLE , ATTACK , CAVITATION , CAVITY , CHARACTERISTICS , CORRELATION , DISTRIBUTION , FLAT , FLOW , PLATES , SUPERSONIC , TESTS , TUNNEL , WIND , -
NASA-LLIS-3101
Abstract: Abstract:
Properly "spotting," or accurately positioning, the Space Shuttle orbiter in the Orbiter Processing Facility (OPF) on the first roll-in attempt rarely occurred before the orbiter laser spotting ...Subject(s) : Ground support systems , Human factors planning , -
NASA-LLIS-0157
Abstract: Description of Driving Event:
The external tank's gaseous hydrogen vent arm provides for venting of the LH2 tank, pneumatics, and electrical services to the ground umilical carrier. The deceleration ...Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilities , Ground Equipment , Ground Operations , -
NACA-RM-L57E24 REV A
Abstract: Factors affecting static, longitudinal, and directional stability characteristics of supersonic aircraft configurations -
NASA-LLIS-6357
Abstract: Vehicle external thermal environments are often defined for discrete body point for zones. STS plume and aerodynamic heating data books used body point numbers that were inconsistent in length and are very occasionally ... -
NASA-LLIS-1180
Abstract: Description of Driving Event:
The TDRS-H was launched on June 30, 2000. The satellite is the first of a new series of Tracking Data Relay Satellites. The satellite incorporated a number of new communication ...Subject(s) : Communication Systems , Parts Materials & Processes , Spacecraft , Test & Verification , -
NASA-LLIS-5377
Abstract: Although the term "human factors" was not widely used during the Apollo program, the concepts were well defined, especially for the displays and controls requirements for the spacecraft. There was a significant emphasis ... -
NASA-LLIS-0800
Abstract: Practice:
Dielectric compositions used in such spacecraft materials as circuit boards, cable insulation and thermal blankets will build up an imbedded charge when exposed to a natural space environment ... -
NACA-TR-968
Abstract: A low-scale wind-tunnel investigation was conducted in rolling flow to determine the effects of aspect ratio and sweep (when varied independently) on the rolling stability derivatives for a series of untapered wings. The ...Subject(s) : AERODYNAMIC , AIRCRAFT , ASPECT , COEFFICIENTS , DAMPING , DERIVATIVES , DRAG , EFFECT , LATERAL , LIFT , LOW , MOMENTS , PARTS , RATIO , ROLL , SPEED , STABILITY , SUCTION , SWEEP , SWEPTBACK , TESTS , TIPS , TUNNEL , WIND , WING , WINGS , YAWING , -
NASA-LLIS-0008
Abstract: Description of Driving Event:
A flash fire occurred during a performance record test of the shuttle Extravehicular Mobility Unit (EMU). This fire occurred when a shutoff valve was opened, supplying ...Subject(s) : Extra-Vehicular Activity , Parts Materials & Processes , Pressure Vessels , Test & Verification , -
NASA-LLIS-0941
Abstract: Abstract:
For MCO and MPL, mission scientists were not active participants in making critical decisions throughout the mission design and operations phases. Involvement of scientists throughout the ...Subject(s) : Flight Operations , Payloads , Policy & Planning , Principal Investigators , Project Management , Risk Management/Assessment , Safety & Mission Assurance , Science Return , -
NASA-LLIS-2838
Abstract: Abstract:
The effects of soft goods (environmental seals, pressure seals, thermal barriers, etc.) were not fully considered during the design of several of the orbiter mechanical systems. During rerigging ...Subject(s) : Engineering design and project processes and standards , Entry Systems , Ground Operations , Ground processing and manifesting , Long term sustainability and maintenance planning , Orbiting Vehicles , Spacecraft , -
NACA-TN-4185
Abstract: An investigation was performed in the Langley high-speed 7-by 10-foot tunnel in order to determine the rolling derivatives for swept-wing-body configurations at angles of attack from 0° to 130 and at high subsonic ... -
NASA-CR-1712
Abstract: Development of acoustic lining for turbofan nacelle modification to minimize fan compressor noise radiation.Subject(s) : ABSORBERS (MATERIALS) , ACOUSTIC PROPERTIES , AIRCRAFT NOISE , ENGINE NOISE , LININGS , NACELLES , NOISE REDUCTION , -
NASA-LLIS-0556
Abstract: Description of Driving Event:
On April 7, 1997 a solar flare occurred with an associated coronal mass ejection and a "coronal Moreton wave." These phenomena were seen in new and spectacular ways by ...Subject(s) : External Relations , -
NASA-LLIS-1622
Abstract: Abstract:
On December 3, 2002 a "close call" involving a B52B aircraft, NASA 008, occurred as it was under going pre-flight for a mission the following day. During the preflight, a gaseous nitrogen ...Subject(s) : Accident Investigation , Aircraft , Flight Equipment , Ground Equipment , Ground Operations , Pressure Vessels , -
NACA-TR-920
Abstract: An analysis of the nose-inlet shapes developed in previous investigations to represent the optimum from the standpoint of critical speed has shown that marked similarity exists between the nondimensional profiles of inlets ...Subject(s) : AERODYNAMICS , AIR , CHARTS , CRITICAL , DESIGN , DIAMETERS , DISTRIBUTION , ENGINE , HIGH , INLETS , INTAKES , LENGTH , NOSE , PRESSURE , RATIOS , SPEED , TESTS , TUNNEL , VELOCITY , WIND , -
NASA-LLIS-0971
Abstract: Description of Driving Event:
In the 1995-1996 timeframe the Office of Safety and Mission Assurance (OSMA) began development of a distance learning capability under the umbrella of the Professional ...Subject(s) : Policy & Planning , Training Equipment , -
NASA-STD-5005 REV D
Abstract: Purpose
The purpose of this Standard is to establish requirements and guidance for design and fabrication of ground support equipment (GSE) to assist National Aeronautics and Space Administration (NASA) ...

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