NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 441-460 of 3613
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NASA-CR-112237
Abstract: Continuum mechanics solutions are derived for the static load-carrying capacity of scarf and stepped-lap adhesive-bonded joints. The analyses account for adhesive plasticity and adherend stiffness imbalance and thermal ...Subject(s) : ADHESIVE , ADHESIVES , BONDING , COMPOSITE , COMPUTER , COMPUTERS , CONTINUUM , DIGITAL , JOINTS , LAP , MATERIALS , MECHANICS , PROGRAMS , SCARFING , -
NASA-LLIS-1400
Abstract: Abstract:
Success at meeting a project's milestones may not translate into a stable allotment of resources. Thus, projects should include, in addition to their risk planning, planning for opportunities ...Subject(s) : Financial Management , Program and Project Management , -
NASA-TR-D-594
Abstract: This investigation is part of an extensive experimental study that has been carried out at full scale in the NACA 20-foot tunnel, the purpose of which has been to furnish information in regard to the functioning of the ...Subject(s) : AERODYNAMIC CHARACTERISTICS , AERODYNAMIC CONFIGURATIONS , AIRCRAFT , ANGLES (GEOMETRY) , CLIMBING FLIGHT , COWLINGS , FULL SCALE TESTS , HIGH SPEED , NACELLES , PROPELLER EFFICIENCY , PROPELLERS , ROTOR BLADES , TAKEOFF , WIND TUNNEL TESTS , -
NASA-SP-347
Abstract: Several airfoil design procedures are described. The first is a procedure for designing an airfoil shape to have a prescribed surface pressure distribution. It is applicable to the design of supercritical as well as ...Subject(s) : AERODYNAMIC , ANALYSIS , CHARACTERISTICS , COMPUTER , CONFERENCES , CONFIGURATIONS , DISTRIBUTION , FLOW , INVISCID , NUMERICAL , PROGRAMS , TECHNIQUES , TRANSONIC , -
NASA-LLIS-3277
Abstract: Description of Driving Event:
Prior to the development of the RSA system, there was no streamlined efficient method for TPS technicians or quality inspectors to formally document concerns or ideas for ...Subject(s) : Manufacturing and Assembly , Mission Operations and Ground Support Systems.Ground support systems , -
NASA-LLIS-1151
Abstract: Description of Driving Event:
NASA Pursuit of Shuttle Avionics UpgradesSubject(s) : Aerospace Safety Advisory Panel , Computers , Policy & Planning , Research & Development , Risk Management/Assessment , Software , Spacecraft , Test & Verification , -
NASA-LLIS-0768
Abstract: Practice:
Insure that thermal design practices for electronic assemblies will meet the requirements of the combined ground and flight environmental conditions defined by the spacecraft mission. Special ... -
NACA-TR-738
Abstract: A theoretical study was made of the reduction in downwash and the upward displacement of the wake in the presence of the ground, and some verification of theory was obtained by means of air-flow measurements made with a ...Subject(s) : AERODYNAMICS , AIRCRAFT , ANGLES , COMPUTATION , DOWNWASH , EFFECT , GEOMETRY , GROUND , LANDING , TAKEOFF , WAKES , -
NASA-LLIS-1599
Abstract: Abstract:
The Dryden Aerospike Rocket Test Director's Discretionary Fund (DDF) project conducted flight research of an aerospike rocket nozzle design using high power amateur rockets. The standard ...Subject(s) : Accident Investigation , Aircraft , Flight Operations , Payloads , Range Operations , Safety & Mission Assurance , Spacecraft , -
NACA-WR-L-444
Abstract: A flight investigation has been made to check the results of a theoretical analysis of longitudinal stability of an airplane with free controls. Tests were made of a Fairchild XR2K-1 airplane on which the weight moment and ... -
NASA-LLIS-0909
Abstract: Description of Driving Event:
During the launch of the NOAA-K weather satellite there was an anomalous deployment of the Very High Frequency Real Time Antenna (VRA) and an incomplete deployment of the ...Subject(s) : Flight Equipment , Hardware , Spacecraft , Test & Verification , -
NACA-TN-3705
Abstract: An investigation was made in the Langley 300 MPH 7- by 10-foot tunnel and the Langley gust tunnel to determine the static longitudinal aerodynamic characteristics and the gust-alleviation capabilities of forward-located ... -
NASA-TM-81968
Abstract: A flight experiment was conducted to investigate the lateral attenuation of high by pass ratio engined airplanes. A B-747 was flown at low altitudes over the ends of two microphone arrays. One array covering a lateral ...Subject(s) : ACOUSTIC ATTENUATION , BOEING 747 AIRCRAFT , DATA REDUCTION , EFFECTIVE PERCEIVED NOISE LEVELS , ELEVATION ANGLE , ENGINE NOISE , GRAPHS (CHARTS) , RUNWAYS , SPECTRAL BANDS , TABLES (DATA) , -
NACA-TR-1049
Abstract: An investigation was made to determine the effects of vertical-tail size and length and of fuselage shape and length on the static lateral stability characteristics of a model with wing and vertical tails having the ...Subject(s) : AERODYNAMIC , ASSEMBLIES , COEFFICIENTS , COMPUTATIONAL , CONFIGURATIONS , DYNAMICS , FLUID , FUSELAGES , INTERFERENCE , LATERAL , LENGTH , LIFT , MOMENTS , PITCHING , SHAPES , STABILITY , STABILIZERS , STATIC , SURFACES , SWEPTBACK , TAIL , WINGS , -
NASA-LLIS-0546
Abstract: Description of Driving Event:
The MIDAS experiment was designed for one atmosphere pressure, and thus venting was not seen as a requirement and was not designed in. However, the specified minimum and ...Subject(s) : Environment , Flight Equipment , Hardware , -
NASA-LLIS-1369
Abstract: Abstract:
Investigation of a lockout device that did not perform its intended function discovered that the circuit breaker could still be operated even with the device in place.Subject(s) : Configuration Management , Energy , Facilities , Ground Equipment , Ground Operations , Hardware , Human Factors , Human Resources & Education , Industrial Operations , Personal Protective Equipment , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Security , Test & Verification , -
NASA NPR 9010.2 REV A
Abstract: Purpose
This NASA Procedural Requirements (NPR) document provides the financial management policy requirements for financial management operating procedures (FMOP) and the continuous monitoring program ... -
NASA-TN-3235
Abstract: The low-speed (up to 4 miles per hour) cornering characteristics of two 56 X 16, type VII, extra-high-pressure, 24-ply-rating tires were determined for a range of vertical loadings, yaw angles, and tire inflation pressures. ... -
NASA-CR-2833
Abstract: Wind tunnel force and pressure tests were conducted for the GA(W)-1 airfoil equipped with a 20 aileron, and pressure tests were conducted with a 30 Fowler flap. All tests were conducted at a Reynolds number of 2.2 and a ...Subject(s) : AERODYNAMIC , AILERONS , AIRFOILS , CONTROL , DEFLECTION , DISTRIBUTION , FLAPS , FORCES , MOMENT , PRESSURE , SURFACES , TESTS , TUNNEL , WIND , -
NASA-LLIS-0123
Abstract: Description of Driving Event:
The H70-0743 sling assembly consists of a forward and aft spreader beam assembly connected together by a segmented stabilizing frame assembly. With the two mobile crane ...Subject(s) : Ground Operations , Industrial Operations , Lifting Devices , Transportation ,

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