NASA - National Aeronautics and Space Administration (NASA): Recent submissions
Now showing items 361-380 of 3613
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NASA-TR-R-100
Abstract: Bodies of revolution in free flight - zero-lift drag data.Subject(s) : BODIES OF REVOLUTION , BODY OF REVOLUTION , DATA ACQUISITION , DRAG , FREE FLIGHT , ZERO LIFT , -
NASA-LLIS-0318
Abstract: Description of Driving Event:
From the inception of SL-3 until the flight, the experiment complement changed three or four times. These changes occurred during Payload integration and each time required ...Subject(s) : Payloads , Policy & Planning , -
NASA-LLIS-0087
Abstract: Description of Driving Event:
OMRSD S073A.90 thru .230 requires verification of voltages, phasing, and talkbacks to the orbiter. Present talkback verification method for the payload retention latch ...Subject(s) : Energy , Flight Equipment , Ground Operations , Hardware , Launch Vehicle , Payloads , -
NASA-LLIS-1051
Abstract: Description of Driving Event:
Line-Replaceable Unit (LRU) Restoration and UpgradingSubject(s) : Aerospace Safety Advisory Panel , Logistics , Parts Materials & Processes , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , -
NASA NPR 2841.1
Abstract: Purpose
This document establishes requirements and responsibilities for the policy set forth in NASA Policy Directive (NPD) 2800.1, Managing Information Technology, in order to properly manage identity, ... -
NASA-LLIS-0632
Abstract: Description of Driving Event:
During the STS-90 flight, there was a repeated need to access the specimens contained within the Animal Enclosure Modules. The operation to gain access required the mating ...Subject(s) : Flight Equipment , Hardware , Payloads , Research & Development , Safety & Mission Assurance , Test & Verification , -
NACA-ARR-L5F30 REV A
Abstract: INTRODUCTION
One of the devices employed for balancing control surfaces, especially ailerons, of modern high-speed airplanes is the sealed internal balance (fig. 1), Much Of the experimental work that has been done in ... -
NASA-LLIS-0698
Abstract: Practice:
Use heat pipes, preferably aluminum heat pipes charged with anhydrous ammonia, in spacecraft and instrument thermal control applications. This practice enhances the control and flow of heat ... -
NASA-LLIS-1460
Abstract: Abstract:
To avoid witness scheduling and pre-hearing preparation legal complications, a specific individual on the Investigation Board staff should propose and coordinate witnesses for public hearings.Subject(s) : Accident Investigation , Administration/Organization , External Relations , NASA Standards , Policy & Planning , Safety & Mission Assurance , -
NASA NPR 9050.4
Abstract: PURPOSE
This NASA Procedural Requirements (NPR) provides the financial management requirements for cash management reviews and compliance with improper payment policies and regulations.
A ... -
NACA-RM-L7A30
Abstract: INTRODUCTION
Up to the present the, very few high Reynolds number air-load data applicable to the structural design of double slotted flay and their supporting and retracting mechanisms are available. For this reason ... -
NASA-LLIS-0432
Abstract: Abstract:
The MO Traveling Wave Tube Amplifiers (TWTAs) were not powered during qualification Pyrotechnic Shock testing. As a result, the TWTA beam and cathode heaters were not powered during the ...Subject(s) : Communication Systems , Hardware , RF Testing , Test & Verification , -
NASA-LLIS-0231
Abstract: Description of Driving Event:
During winter operation of a cooling tower that was operating in a standby mode, a large section of the tower collapsed due to an unusual accretion of ice in the central ...Subject(s) : Environment , Facilities , Ground Operations , Hardware , -
NACA-TN-1222
Abstract: INTRODUCTION
In reference 1 Timoshenko presents a solution for the buckling stresses of simply supported rectangular flat plates in shear. Timoshenko considered only the equations which permitted a buckle pattern ...Subject(s) : BUCKLING , FLAT , FORMULAS , LOADS , PLATES , RECTANGULAR , SHEAR , STRESSES , -
NASA-TN-D-6283
Abstract: Hypersonic and supersonic angle of attack flow about asymmetric and axisymmetric blunt bodies based on time dependent finite difference theory and method of characteristicsSubject(s) : ANGLE , ASYMMETRY , ATTACK , AXISYMMETRIC , BLUNT , BODIES , CHARACTERISTICS , DEPENDENCE , DIFFERENCE , DISTRIBUTION , FINITE , FLOW , HYPERSONIC , METHOD , SUPERSONIC , THEORY , TIME , -
NACA-TN-1759
Abstract: A high-speed wind-tunnel investigation of a taporod wing of NACA 66-series airfoil sections equipped with split flaps has been conducted at Mach numbers up to 0.585 to determine the effects of compressibility on the ...Subject(s) : AIRFOILS , CARRIED , CHARACTERISTICS , COMPRESSIBILITY , DISTRIBUTION , DRAG , EFFECT , FLAPS , FULL , HIGH , LAL , LOW , MOMENTS , NACA , ORDINATES , PARTIAL , PITCHING , PRESSURE , SERIES , SPAN , SPEED , SPLIT , TAPERED , TESTS , TUNNEL , WIND , WING , WINGS , WORK , -
NASA-LLIS-1289
Abstract: Description of Driving Event:
The project had three significant challenges with respect to managing human resources, and the potential loss of any project member was a significant risk.
First, the ...Subject(s) : Administration/Organization , Human Resources & Education , Risk Management/Assessment , -
NACA-RM-L51I06
Abstract: INTRODUCTION
Wings of triangular plan form appear, in many respects, to be structurally and aerodynamically suitable for high-speed airplanes; however, adequate longitudinal control is difficult to obtain for these ... -
NASA-LLIS-1463
Abstract: Abstract:
An in-place, operational web-based Mishap Investigation Support System on hot standby, and a designated management team ready to support operational requirements and customization are needed ...Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , NASA Standards , Policy & Planning , Safety & Mission Assurance , Security , -
NASA-LLIS-0095
Abstract: Description of Driving Event:
Technicians were in the process of extending platform 10-2 in OPF HB-1. After extending the platform about 3 feet, the observer noted that the platform would not clear the ...Subject(s) : Facilities , Hardware , Launch Process , Lifting Devices ,