NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 3301-3320 of 3613
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NASA-LLIS-0902
Abstract: Description of Driving Event:
A hydrazine cylinder containing 11 liters of Hydrazine was shipped to the Kennedy Space Center (KSC). The shipping paperwork indicated the cylinder contained 1 liter of ...Subject(s) : Aircraft , Flight Equipment , Flight Operation , Hazardous/Toxic Waste/Materials , Packaging Handling Storage , Transportation , -
NASA-LLIS-0285
Abstract: Abstract:
Although an alert had been issued on a thermal wire stripper, its use during the WF/PC II CCD assembly process resulted in damage to the engineering model camera head.
The alert process ...Subject(s) : Electrostatic Discharge , Energy , Parts Materials & Processes , Safety & Mission Assurance , -
NACA-TN-3629
Abstract: An investigation of the effects of ground proximity and propeller position on the effectiveness of a wing equipped with large-chord slotted flaps in redirecting the slipstreams from large-diameter propellers downward for ... -
NASA-STD-8739.9
Abstract: Purpose
The purpose of this Standard is to define the requirements for a software inspection process aimed at detecting and eliminating defects as early as possible in the software life cycle. This ... -
NASA-SP-7012
Abstract: Data, covering the physical constants, conversion factors, names, symbols, and definitions in the International System of Units are presented.Subject(s) : CONSTANTS , CONVERSION TABLES , INTERNATIONAL SYSTEM OF UNITS , PHYSICAL FACTORS , STANDARDIZATION , UNITS OF MEASUREMENT , -
NASA-TN-D-4076
Abstract: Horizontal-tail height, wing height, and dihedral effects on longitudinal and lateral stability characteristics of 76 deg swept arrow wing aircraft modelSubject(s) : AIRCRAFT , ANGLE , ARROW , ATTACK , DIHEDRAL , EFFECT , HORIZONTAL , LATERAL , LONGITUDINAL , MACH , MODEL , MODELS , NONLINEARITY , NUMBER , SIDESLIP , STABILITY , STATIC , SURFACES , SWEPT , TAIL , WING , WINGS , -
NASA-LLIS-6076
Abstract: Several of the Space Shuttle Integrated Disciplines have Databooks that were used as the official locations for analysis (Natural Environments, Loads, Debris, etc). The Main Propulsion System (MPS) used the Shuttle Performance ... -
NASA-LLIS-0580
Abstract: Description of Driving Event:
A small plastic vial stored in liquid nitrogen burst while laboratory workers were inventorying and transferring vials from one dewar to another. During the transfer a ...Subject(s) : Cryogenic Systems , Industrial Operations , Occupational Health , Personal Protective Equipment , -
NASA-LLIS-1351
Abstract: Description of Driving Event:
In early February 2003, JPL and NASDA reported gaps in Level 0 data products received from the Wallops and Alaska ADEOS-II Data Processing Systems. Gaps in the SeaWinds ...Subject(s) : Ground Equipment , Ground Operations , Test & Verification , -
NACA-TN-2913
Abstract: Wake development behind circular cylinders at Reynolds numbers from 40 to 10,000 was investigated in a low-speed wind tunnel. Standard hot-wire techniques were used to study the velocity fluctuations.
The Reynolds ... -
NASA-CR-2443
Abstract: A two-dimensional wind-tunnel evaluation of two Fowler flap configurations on the new GA(W)-1 airfoil was conducted. One configuration used a computer-designed 29-percent chord Fowler flap. The second configuration was ...Subject(s) : AERODYNAMIC , AIDED , AIRCRAFT , AIRFOIL , AVIATION , COEFFICIENTS , COMPUTER , DESIGN , DISTRIBUTION , EDGE , FLAPS , FLOW , GAW , GENERAL , PRESSURE , SPEED , SUBSONIC , TESTS , TRAILING , TUNNEL , VISUALIZATION , WIND , -
NASA-LLIS-3338
Abstract: Abstract:
Constraints, or the identification of a precedence order for work procedures, are crucial to flight hardware processing. A constraints system has been in place for many years in the Shuttle ...Subject(s) : Ground processing and manifesting , Ground support systems , Launch support systems , Logistics and maintenance , -
NASA-LLIS-0118
Abstract: Description of Driving Event:
During air-arcing operations under mobile launch platform-1 (MLP), a welder smelled smoke through the hole he was working on and found a fire in the floor insulation of ...Subject(s) : Facilities , Ground Operations , -
NASA-LLIS-1115
Abstract: Description of Driving Event:
Limited Funding for Advanced Research and Technology (R&T) for Extravehicular Activity (EVA)Subject(s) : Aerospace Safety Advisory Panel , Extra-Vehicular Activity , Flight Equipment , Research & Development , Risk Management/Assessment , -
NACA-TN-1341
Abstract: The equation for the equilibrium of cylindrical shells introduced by Donnell in NACA Technical Report no. 479 to find the critical stresses of cylinders in torsion is applied to find critical stresses for cylinders with ...Subject(s) : ANALYSIS , AXIAL , BOUNDARY , BUCKLING , COMPRESSION , CRITICAL , CYLINDRICAL , DISPLACEMENT , DONNELL , EDGES , EQUATIONS , EQUILIBRIUM , HYDROSTATIC , INDEPENDENT , LOADING , LOADS , MATHEMATICS , MEMBER , PRESSURE , PROBLEMS , SHEAR , SHELLS , SKIN , STRESS , STRUCTURAL , SUPPORTS , THIN , TORSION , VALUE , VARIABLES , WALLED , -
NASA-LLIS-1317
Abstract: Abstract:
A number of incidents, some of them documented in other lessons learned, are listed to support the thesis that ESD remains an insidious threat to the integrity of flight hardware despite ...Subject(s) : Energy , ESD , ESD Control Plan , ESD requirements , ESD sensitive devices , Facilities , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Industrial Operations , Launch Process , Occupational Health , Packaging Handling Storage , Parts Materials & Processes , Payloads , Personal Protective Equipment , personnel safety , Safety & Mission Assurance , sensitivity , Spacecraft , system safety , Test Facility , -
NASA-LLIS-0750
Abstract: Practice:
Understanding and addressing the design environment, component interactions, and potential failure modes are the keys to high reliability in high performance liquid hydrogen turbopumps for ... -
NACA-TR-627
Abstract: The experimental and calculated aerodynamic characteristics of 22 tapered wings are compared, using tests made in the variable-density wind tunnel. The wings had aspect ratios from 6 to 12 and taper ratios from 1:6:1 and ...Subject(s) : AERODYNAMIC , BALANCE , CHARACTERISTICS , CHORDS , COEFFICIENTS , COMPARISON , COMPUTATIONAL , DRAG , DYNAMICS , EFFECT , FLUID , GEOMETRY , LIFT , MOMENTS , PITCHING , PROFILES , RATIO , SCALE , SWEPT , TESTS , TUNNEL , WIND , WING , WINGS , -
NASA-LLIS-1843
Abstract: Abstract:
Given their minimal ability to mitigate DSN resource limitations, flight projects must consider mission design and mission operations improvements that may help to achieve Level 1 requirements, ...Subject(s) : Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Software Engineering , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Mission Operations and Ground Support Systems.Logistics and maintenance , Mission Operations and Ground Support Systems.Mission control Planning , Mission Operations and Ground Support Systems.Mission operations systems , Missions and Systems Requirements Definition. , Missions and Systems Requirements Definition.Configuration control and data management , Missions and Systems Requirements Definition.Level 0/1 Requirements , Missions and Systems Requirements Definition.Mission concepts and life-cycle planning , Program Management.Configuration and data management , Program Management.Cross Agency coordination , Program Management.Program planning , development , and management , Program Management.Risk management , Program Management.Science integration , Safety and Mission Assurance. , Safety and Mission Assurance.Early requirements and standards definition , Safety and Mission Assurance.Maintenance , Systems Engineering and Analysis.Long term sustainability and maintenance planning , Systems Engineering and Analysis.Mission and systems trade studies , Systems Engineering and Analysis.Mission definition and planning , -
NACA-CB-5B05
Abstract: A study of data from various wind-tunnel tests of horizontal tail surfaces was made to determine the accuracy with which section data can be used to estimate the hinge-moment characteristics of control surfaces of finite ...

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