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NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 2021-2040 of 3613
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NACA-TM-1176
Abstract: The investigations of the reports to 4 on wings of small aspect ratio are continued. The present report deals with the results of the three- and six-component measurements and the flow pictures of the triangular wing series ...Subject(s) : ASPECT , DELTA , EQUIPMENT , MECAMYLAMINE , RATIO , SWEPT , TEST , WINGS , -
NASA-LLIS-1018
Abstract: Description of Driving Event:
Payload Requirements for Hazardous Materials Containment.Subject(s) : Aerospace Safety Advisory Panel , Hazardous/Toxic Waste/Materials , Parts Materials & Processes , Payloads , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , -
NASA-LLIS-5200
Abstract: During the Constellation Program, rework caused excessive costs and schedule slip. The rework resulted from a lack of coordination in the design and development of flight hardware and ground support equipment. Synchronization ... -
NACA-RM-L54I20
Abstract: INTRODUCTION
A series of tests were made in the Langley high-speed 7- by 10-foot tunnel to determine the rolling stability derivatives of a complete model having a low-aspect-ratio wing and tail. The model had a wing ... -
NASA-LLIS-0816
Abstract: Practice:
A needle-point penetration gas transfer valve has been developed at JSC that is leak tight and gives very reliable results in transferring low or high pressure gases from sample containers ... -
NACA-TN-1361
Abstract: INTRODUCTION
The elementary theories of bending and torsion are often not sufficiently accurate for determining the stresses in airplane wings. The bending stresses are modified by shear lag and the torsion stresses, ...Subject(s) : BEAMS , BEAMS , BOX - TORSION , BOX - CUT-OUTS , LOADS - BEAMS , BOX , STRESSED SKIN - BEAMS , BOX-BENDING , STRESSED SKIN - WINGS - TORSION & BENDING , THEORIES - TORSION & BENDING , WINGS - BENDING & TORSION , WINGS - DEFLECTION , -
NACA-TR-766
Abstract: A series of related forms of flying-boat hulls representing various degrees of compromise between aerodynamic and hydrodynamic requirements was tested in Langley Tank No. 1 and in the Langley 8-foot high-speed tunnel. The ...Subject(s) : AERODYNAMIC , AERODYNAMICS , AIRCRAFT , BALANCE , BODIES , BOWS , CONFIGURATIONS , DRAG , FOREBODIES , HULLS , HYDRODYNAMICS , LANDING , LIFT , MOMENTS , PITCHING , RESISTANCE , STREAMLINED , STRUCTURES , TAKEOFF , WATER , -
NASA-LLIS-0025
Abstract: Description of Driving Event:
Following its arrival at one of the paylaod processing facilities, a payload is removed from the transporter/container and installed in a test or assembly stand. Facility ...Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilities , Ground Equipment , Ground Operations , Hazardous/Toxic Waste/Materials , Payloads , -
NASA-LLIS-0958
Abstract: Description of Driving Event:
The Challenger (Space Shuttle Flight #51L) accident triggered a detailed review of all of the joints in the Solid Rocket Motor. Analyses showed a potential weakness and ...Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Launch Vehicle , -
NASA-LLIS-6616
Abstract: Description of Driving Event:
To cure a large laminate structural part, the part is wrapped in layers of material that maintain a vacuum on the part and allow a portion of the resin to bleed away from ... -
NASA-LLIS-0573
Abstract: Abstract:
Due to the Mars Global Surveyor electrical power system design, a sneak path through GSE energized the spacecraft power bus, even though spacecraft battery power was disconnected. Locate the ... -
NACA-TR-1281
Abstract: External-drag data are presented for normal-shock nose inlets with NACA 1-series, parabolic, and conic cowling profiles. The tests were made at an angle of attack of 0 degrees by using rocket-propelled models in free flight ...Subject(s) : AERODYNAMIC DRAG , AIR INTAKES , CONICAL BODIES , COWLINGS , DUCTED BODIES , FLIGHT TESTS , FREE FLIGHT , MACH NUMBER , MASS FLOW FACTORS , NOSE INLETS , PARABOLIC BODIES , PROFILES , -
NASA-LLIS-1417
Abstract: Abstract:
A successful Project Management (PM) Training and Development (T&D) program requires training activities which are compatible with the Center's culture and focuses on topics immediately ...Subject(s) : culture , distant learning , environmental amenties , Human Resources & Education , Professional development , Program and Project Management , training , -
NASA-TM-4436
Abstract: Static and fluctuating pressure distributions were obtained along the floor of a rectangular-box cavity in an experiment performed in the LaRC 0.3-Meter Transonic Cryogenic Tunnel. The cavity studied was 11.25 in. long and ...Subject(s) : BOUNDARY , CAVITY , CRYOGENIC , DISTRIBUTION , FLOW , LAYERS , MATHEMATICAL , MODELS , NUMBER , OSCILLATIONS , PRESSURE , REYNOLDS , SPEED , STATIC , SUBSONIC , THICKNESS , TRANSONIC , TUNNELS , UNSTEADY , WIND , YAW , -
NASA-LLIS-3536
Abstract: Abstract:
The JPL practice of issuing a request prior to major project milestones for flight projects to prepare a lessons learned briefing was first implemented prior to the WISE PLAR. It is unlikely ...Subject(s) : Additional Categories.Safety & Mission Assurance , Program Management.Program level review processes , Safety and Mission Assurance.Review systems and boards , -
NACA-RM-L56H06
Abstract: INTRODUCTION
An investigation has been made in the Langley 4- by 4-foot supersonic pressure tunnel at Mach numbers of 1.82 and 2.01 to determine the static longitudinal and lateral stability characteristics of a model ... -
NASA-LLIS-1211
Abstract: Description of Driving Event:
A contractor reported that there had been some discrepancies with the shipment of the Robotic Work Stations (RWS). The preliminary discrepancies were lack of shock indicators, ...Subject(s) : Configuration Management , Explosives Handling , Flight Equipment , Ground Equipment , Hardware , Independent Verification and Validation , Logistics , Packaging Handling Storage , Parts Materials & Processes , Payloads , Policy & Planning , Procurement Small Business & Industrial Relations , Risk Management/Assessment , Safety & Mission Assurance , Software , Spacecraft , Test & Verification , Transportation , -
NASA-LLIS-3763
Abstract: Abstract:
Ground Support Equipment (GSE) systems should be thoroughly reviewed to determine the requirements for periodic calibration of the individual components. It is not enough to validate the ...Subject(s) : Engineering design and project processes and standards , Ground Equipment , Ground processing and manifesting , Maintenance , -
NASA-LLIS-0788
Abstract: Practice:
Considering the natural environment, perform spacecraft charging analyses to determine that the energy that can be stored by each nonconductive surface is less than 3 mJ. Determine the ... -
NASA-LLIS-3697
Abstract: Description of Driving Event:
During the performance of OMI V1103.002 (EMU Functional), a significant amount of water was found in the EMU 2 upper torso in the Primary Life Support System (PLSS) ...Subject(s) : Additional Categories. , Additional Categories.Extra-Vehicular Activity , Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Extra-Vehicular Activity/Mobility/Space Suits , Missions and Systems Requirements Definition. , Missions and Systems Requirements Definition.Human factors impact on mission design , Program Management. , Program Management.Risk management , Safety and Mission Assurance. , Safety and Mission Assurance.Impact of human factors on systems requirements and designs , Systems Engineering and Analysis. , Systems Engineering and Analysis.Engineering design and project processes and standards ,