NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 1661-1680 of 3613
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NASA-LLIS-0932
Abstract: Description of Driving Event:
On January 7, 2001, a large washout was discovered in the vicinity of Facility K7-1205F at the Kennedy Space Center Press Site. Water was flowing from the open end of a ...Subject(s) : Configuration Management , Facilities , -
NASA-LLIS-1356
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) : Administration/Organization , Ground Equipment , Ground Operations , Launch Process , -
NASA-LLIS-6349
Abstract: The interaction of rocket exhaust plumes with the external vehicle flowfield has been the source of numerous problems on the Space Shuttle – both on the launch vehicle during ascent and the orbiter during re-entry ... -
NASA-LLIS-0657
Abstract: Practice:
Conduct a formal Critical Design Review (CDR) of hardware, software, and firmware at the subsystem and system levels. Schedule the review prior to the start of subsystem fabrication and ... -
NASA NPR 8705.4 W/CHG 2
Abstract: PURPOSE
This NPR establishes baseline criteria that enable a user to define the risk classification level for NASA payloads on human- or nonhuman-rated launch systems or carrier vehicles and the design ... -
NASA-LLIS-1563
Abstract: Abstract:
A senior individual with experience in many space flight projects, including several X-vehicles, has observed that the aerospace industry has changed and there are many indirect costs associated ...Subject(s) : Logistics , Policy & Planning , Procurement , Program and Project Management , Risk Management/Assessment , Small Business & Industrial Relations , -
NASA-LLIS-1424
Abstract: Abstract:
The success of a project is greatly impacted by the visibility and advocacy within the NASA community.Subject(s) : Advocacy , Communication Systems , Policy & Planning , Program and Project Management , Risk Management/Assessment , Stake holders , Visibility , -
NACA-RM-L7G31
Abstract: INTRODUCTION
The accelerated development of jet-propelled aircraft during World War II resulted in the creation of motors (turbojet, ram jet, and rocket) capable of propelling airplanes at supersonic speeds. Airplanes ...Subject(s) : CONTROLS , DIRECTIONAL , LATERAL , STABILITY , STATIC , -
NASA-LLIS-0412
Abstract: Abstract:
Because, the interface circuit between the Voyager CCS and Power subsystems was not electrically isolated, spacecraft system noise prevented reliable commanding from CCS to Power. This was ...Subject(s) : Electrical Isolations , Spacecraft , Test & Verification , -
NASA-LLIS-0209
Abstract: Description of Driving Event:
The Space Shuttle Main Engine (SSME) telemetry system does not show absolute Greenwich Mean Time (GMT), but rather, the number of controller cycles since change in mode. ...Subject(s) : Flight Equipment , Flight Operations , Launch Vehicle , -
NACA-TN-825
Abstract: INTRODUCTION
The rates of change of rolling-moment, yawing-moment, and lateral-force coefficients with yaw are important factors in the calculation of the--lateral stability of an airplane and, consequently, these ... -
NASA-TN-D-5857
Abstract: Wind tunnel investigation of static longitudinal and lateral characteristics of light single engine low wing airplaneSubject(s) : ANGLE , ATTACK , CONTROL , EDGES , NUMBER , REYNOLDS , STABILITY , TESTS , TRAILING , TUNNEL , WIND , -
NASA-STD-5009
Abstract: Purpose
The purpose of this standard is to establish the nondestructive evaluation (NDE) requirements for any NASA system or component, flight or ground, where fracture control is a requirement. This ... -
NASA-LLIS-1232
Abstract: Description of Driving Event:
Elements of the Shuttle systems upgrades portfolio may be delayed or deferred necessitating a need to ensure adequate long-term logistics planning for mature systems.Subject(s) : Aerospace Safety Advisory Panel , Financial Management , Hazardous/Toxic Waste/Materials , Logistics , -
NACA-TN-1669
Abstract: A low-scale wind-tunnel investigation was conducted in both straight and. yawing flow to determine the effects of aspect ratio and sweep (when varied independently) on the static and. yawing stability derivatives for a ...Subject(s) : AIRFOILS , ASPECT , CARRIED , CHARACTERISTICS , DAMPING , LAL , MOMENTS , NACA , PITCHING , RATIO , ROLLING , STABILITY , SWEPTBACK , TESTS , TUNNEL , WIND , WINGS , WORK , YAW , YAWED , YAWING , -
NACA-RM-L9E24
Abstract: INTRODUCTION
One of the many low-speed problems associated with the use of highly swept wings is the difficulty in providing adequate lateral control, particularly in the region of maximum lift. Present-day experimental ... -
NASA-TN-D-4445
Abstract: Noncavitating flow mechanisms in two low area ratio water jet pumps with throat lengths of 7.25 diameters.Subject(s) : FLOW DISTRIBUTION , FLOW GEOMETRY , JET PUMPS , NOZZLE DESIGN , NOZZLE FLOW , NOZZLE GEOMETRY , PERFORMANCE TESTS , PRESSURE DISTRIBUTION , STATIC PRESSURE , STREAM FUNCTIONS (FLUIDS) , VELOCITY DISTRIBUTION , -
NACA-TM-490
Abstract: This report presents a brief survey of the uses of sheet-metal coverings in conjunction with the inner structure. A method of construction is presented as well as a discussion on the strength of sheet metal.Subject(s) : STRESSED SKIN - GIRDERS , STRESSED SKIN - SHEETS - BUCKLING , STRESSED SKIN - STIFFENER COMBINATIONS , THEORIES - BEAMS - WAGNER , WING SPARS - WEBS , THIN , -
NASA-LLIS-0072
Abstract: Description of Driving Event:
During debrazing operations of a purge fitting in an orbiter's aft compartment, the debrazing head separated, causing an electrical arc. This arc caused the debrazing head ...Subject(s) : Energy , Flight Equipment , Ground Equipment , Ground Operations , Hardware , Parts Materials & Processes , -
NACA-TM-3123
Abstract: A brief investigation has been made to determine whether the use of annular ledges to promote turbulent momentum exchange will improve the performance of a short, wide-angle diffuser. Results are presented of tests of a ...

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