NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 341-360 of 3613
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NACA-TN-2555
Abstract: Results of tests conducted in the 6-foot-diameter rolling-flow test section of the Langley stability tunnel to determine the effects of varying taper ratio on the rolling and static stability characteristics of a swept ...Subject(s) : COMPLETE , DAMPING , DERIVATIVES , STABILITY , STATIC , SWEEP , TAPER , TWIST , WINGS , -
NACA-RM-E51J23
Abstract: Windmilling characteristics of several turbojet and turbine-propeller engines were investigated individually over a wide range of flight conditions in the NACA Lewis altitude wind tunnel. A study was made of all these data ... -
NASA NASA-LLIS-2196
Abstract: Abstract:
The attached report is a compilation of all credible, unintentional hypergolic fluid related spills, fires, and explosions from the Apollo Program, the Space Shuttle Program, Titan Program, ...Subject(s) : Additional Categories.Energetic Materials - Explosive/Propellant/Pyrotechnic , Additional Categories.Ground Operations , Additional Categories.Hazardous/Toxic Waste/Materials , Additional Categories.Industrial Operations , Additional Categories.Packaging , Handling , Storage , Hypergolic Fuel Systems , -
NASA-TN-D-2743
Abstract: Axial load fatigue crack propagation in alloys at room, cryogenic, and high temperatures.Subject(s) : ALLOY , ALLOYS , AXIAL LOAD , AXIAL LOADS , CRACK PROPAGATION , CRYOGENIC TEMPERATURE , FATIGUE (MATERIALS) , FATIGUE TEST , FATIGUE TESTS , HIGH TEMPERATURE , -
NASA-LLIS-0371
Abstract: Abstract:
The SEASAT Spacecraft failed in orbit due to arcing between adjacent slip ring brush assemblies. It was discovered that the Agena bus had been substantially modified, but were treated as a ...Subject(s) : Hardware , Inherited Equipment , Slip Rings , -
NASA-LLIS-2041
Abstract: Abstract:
A few months into its mission, MRO began experiencing unexpected side swaps to the redundant flight computer that placed the spacecraft into safe mode. The problem was traced to subtle ...Subject(s) : 1.Computers , 1.Engineering design and project processes and standards , 1.Flight Equipment , 1.Flight Operations , 1.Ground Equipment , 1.Hardware , 1.Payloads , 1.Software , 1.Software Engineering , 1.Spacecraft , 1.Spacecraft and Spacecraft Instruments , -
NASA-LLIS-1098
Abstract: Description of Driving Event:
There were a number of different organizations involved in the processing of the 2A hardware and each organization had its own set of work rules. This often caused confusion ...Subject(s) : External Relations , Facilities , Flight Operations , Ground Operations , Industrial Operations , Policy & Planning , Range Operations , Risk Management/Assessment , Test Facility , -
NASA-LLIS-4456
Abstract: Abstract:
Ground support equipment, facilities, and shop aids all have defined NASA design requirements and processes. All hardware, whether Commercial Off The Shelf (COTS) or prototype, used in proximity ...Subject(s) : Acquisition / procurement strategy and planning , Business processes , Configuration Change Control , Configuration control and data management , Configuration Management , Cross Agency coordination , DDT/E , Early requirements and standards definition , Engineering design and project processes and standards , Ground Equipment , Ground Operations , Ground processing and manifesting , Ground support systems , Launch Process , Launch Systems , Mishap Reporting , Program and Project Management , Reliability , Research & Development , Review boards , Review systems and boards , -
NACA-RM-A9A24
Abstract: INTRODUCTION
A cascade of airfoils may be employed to deflect an air stream with relatively small loss of available energy. With proper geometric arrangement, the deflection of the air stream is also accompanied by a ... -
NASA-LLIS-0720
Abstract: Practice:
The fundamental behavior of a spaceborne (or space-related) optical imaging system is contained in its response to an impulse, i.e., a point source. The point source image is referred to by ... -
NASA-LLIS-1766
Abstract: Abstract:
National Fire Protection Association (NFPA) Codes and Standards set the minimum requirements for flammable and combustible liquids storage tanks and related controls. NFPA 30 permits immersion ...Subject(s) : Safety and Mission Assurance. , Safety and Mission Assurance.Advanced planning of safety systems , Safety and Mission Assurance.Configuration Change Control , Safety and Mission Assurance.Early requirements and standards definition , -
NASA-TP-1865
Abstract: A flapped natural laminar flow airfoil for general aviation applications, the NLF(1)-0215F, has been designed and analyzed theoretically and verified experimentally in the Langley Low Turbulence Pressure Tunnel. The basic ... -
NASA-LLIS-1494
Abstract: Abstract:
Practically all programs and projects are involved with flight through the atmospheric and space environments. There are usually several groups, both industry and government, involved in the ...Subject(s) : Administration/Organization , Configuration Management , Environment , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Independent Verification and Validation , NASA Standards , Payloads , Policy & Planning , Program and Project Management , Research & Development , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Standard , Test & Verification , Transportation , -
NASA NPR 1450.4 REV G W/CHG 3
Abstract: Purpose
This NPR addresses NASA's responsibilities and procedures for handling correspondence and requests for information received from the U.S. Congress and for handling requests for legislative ... -
NASA-LLIS-0480
Abstract: Description of Driving Event:
The Landsat program was one of the first NASA programs to develop and introduce a major new capability with a broad commercial, public service, and scientific potential. ...Subject(s) : Policy & Planning , Research & Development , -
NASA-TN-D-7972
Abstract: The results presented show that the magnitudes of the aerodynamic stability derivatives due to rate of change of sideslip become quite large at high angles of attack for swept- and delta-wing configurations, and that such ...Subject(s) : AERODYNAMIC , ANALYSIS , ANGLE , ATTACK , DELTA , DERIVATIVES , LATERAL , NUMERICAL , SIDESLIP , STABILITY , STALLING , SWEPT , WINGS , -
NASA-LLIS-0252
Abstract: Description of Driving Event:
A roof penetration cover exposed to high temperature from an exhaust stack caught fire. The cover appeared to be composed of only sheet metal but, upon further inspection, ...Subject(s) : Facilities , -
NASA-LLIS-1274
Abstract: Description of Driving Event:
Flight element testing is very necessary but expensive; program schedule pressures typically mandate performing the minimum set of tests possible. The paper/documentation ...Subject(s) : Configuration Management , Independent Verification and Validation , Policy & Planning , Research & Development , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification , Test Article , -
NACA-RM-L53F24
Abstract: INTRODUCTION
The high-strength characteristics of wings with triangular plan forms permit the use of very thin airfoil section which provide low minimum-drag characteristics at supersonic speeds. The ... -
NASA NPR 9635.1
Abstract: PURPOSE
This NASA Procedural Requirements (NPR) provides the financial management requirements for billings and collections.
APPLICABILITY
This NPR is applicable to NASA ...