NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 2441-2460 of 3613
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NASA-STD-8739.5 W/CHG 2
Abstract: Purpose
This Standard sets forth fiber optic termination and cabling requirements for reliable fiber optic installations, both single- and multi-mode fiber.
Special requirements may exist which are ... -
NASA-LLIS-0444
Abstract: Description of Driving Event:
During mating of the Magellan Spacecraft connectors within the forward equipment module (a confined space with limited visibility), the technician observed sparks, flames, ...Subject(s) : Energy , Hardware , Parts Materials & Processes , -
NASA-LLIS-0245
Abstract: Description of Driving Event:
An electrical contractor employee was driving studs into a Haydite wall with a cartridge powered Ram-Set. The stud went through the wall and traveled approximately 25 feet ...Subject(s) : Facilities , Ground Operations , Industrial Operations , -
NACA-TN-1303
Abstract: An isosceles triangle twisted into a screw surface about its axis is proposed as a propeller for transonic flight speeds. The purpose is to attain the drag reduction associated with large sweepback in a structurally ... -
NACA-TN-84
Abstract: Thus far, all attempts at the quantitative determination of drag, on the basis of the theory of viscous fluids, have met with but slight success. For this reason, whenever a more accurate knowledge of the drag is desirable, ...Subject(s) : AERODYNAMIC , AIR , BODIES , COEFFICIENTS , CYLINDRICAL , DRAG , FLOW , FLUIDS , RESISTANCE , VISCOUS , -
NASA-STD-6002 REV D
Abstract: This standard and its related handbook, NASA-HDBK-6003, Application of Data Matrix Identification Symbols to Aerospace Parts Using Direct Part Marking Methods/Techniques (DPM), were developed to provide NASA and its ...Subject(s) : Data matrix , Direct part marking , License tag number , Machine-readable symbol , Part identification , Part marking , Protective coating , -
NASA-LLIS-1261
Abstract: Description of Driving Event:
While testing at Mach 0.8 in the 16-ft Transonic Tunnel, a full-scale F-15 inlet model separated from the sting. The model traveled downstream and impacted the catch screen ...Subject(s) : Facilities , Test & Verification , Test Facility , -
NACA-RM-L52G18
Abstract: INTRODUCTION
In connection with some studies of hydrodynamic control surfaces, three low-aspect-ratio rectangular airfoils were tested at low subsonic Mach numbers in the Langley low-turbulence pressure tunnel. The ... -
NACA-TN-2289
Abstract: The sandwich plate consisting of corrugated sheet fastened between two face sheets is considered. Application of existing theories to the analysis of such a sandwich plate requires the knowledge of certain elastic constants. ...Subject(s) : CONSTRUCTION , CORRUGATED , ELASTICITY , METAL , PLATES , SANDWICH , THEORIES , WINGS , -
NASA-TP-1080
Abstract: A test program was conducted to evaluate friction performance and wear characteristics on wet runways of three 30 x 11.5-14.5, type, aircraft tires having two different tread patterns and natural rubber contents. All test ...Subject(s) : AIRCRAFT LANDING , AIRCRAFT TIRES , BRAKING , FRICTION MEASUREMENT , RUBBER , RUNWAYS , TREADS , WEAR TESTS , -
NASA-LLIS-0305
Abstract: Abstract:
To reduce costs, the Mars Observer propulsion and other subsystems followed design practices more common to earth-orbiting satellites than to planetary missions. Consider contractor experience ...Subject(s) : Parts Materials & Processes , Spacecraft , -
NASA-LLIS-1588
Abstract: Abstract:
The NGLT middle-managers forum for integration across the program greatly improved overall program execution. NASA programs should create a middle managers? forum for integration at the Program ...Subject(s) : Administration/Organization , Policy & Planning , Program and Project Management , -
NASA-LLIS-1036
Abstract: Description of Driving Event:
The Primary Reaction Control System (PRCS) pilot-operated valve (POV) controls the flow of hypergolic liquid propellants, nitrogen tetroxide (oxidizer) and monomethylhydrazine ...Subject(s) : Hardware , Industrial Operations , Parts Materials & Processes , Research & Development , Test & Verification , -
NASA-LLIS-5957
Abstract: On July 31, 2007, a Sensor Pack 1 (SP1) was found damaged during placement into a shipping container following a successful Integrated Verification Test (IVT). IVT is an electrical functional verification of the SP1 while ... -
NACA-ACR-3L08
Abstract: INTRODUCTION
The NACA has been conducting an extensive wind-tunnel investigation to determine the aerodynamic characteristics of various types of airplane control surface in order to supply data for design purposes. ...Subject(s) : AIRFOILS , BALANCED , BEVELED , BULGED , DEFLECTION , DISTRIBUTION , ELEVATORS , FLAPS , GAP , HINGE , LIFTING , LINE , MOMENTS , NACA , PRESSURE , SEALED , TABS , THEORIES , WING , -
NASA-LLIS-0665
Abstract: Practice:
Oil-free pumping is the latest state of art in vacuum pump technology. At Kennedy Space Center, this technology is used to maintain approximate 650 sections of the LOX/LH2 vacuum jacketed ... -
NASA-LLIS-1489
Abstract: Abstract:
With the advent of on-orbit reprogrammable remote sensing instruments, the need for high fidelity hardware capable of executing an identical copy of flight software or firmware for Field ...Subject(s) : Configuration Management , Flight Equipment , Ground Equipment , Policy & Planning , Risk Management/Assessment , Software , Test & Verification , Training Equipment , -
NASA-LLIS-1569
Abstract: Abstract:
The AATT Project was directed, at the Non-Advocate Review (NAR), to not maintain a reserve, which significantly hampered the project's ability to mitigate risk and address unforeseen situations. ...Subject(s) : Air-Traffic Management , Policy & Planning , Program and Project Management , Risk Management/Assessment , -
NACA-RM-A51H02
Abstract: INTRODUCTION
A research program is in progress at the Ames Aeronautical Laboratory to ascertain experimentally at subsonic and supersonic Mach numbers the characteristics of wings of interest in the design of high-speed ... -
NASA-LLIS-0641
Abstract: Description of Driving Event:
The Mars Climate Orbiter (MCO) Mission objective was to orbit Mars as the first interplanetary weather satellite and provide a communications relay for the Mars Polar ...Subject(s) : Configuration Management , Flight Equipment , Flight Operations , Mishap Reporting , Software , Spacecraft , Test & Verification ,

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