Experimental Determination of the Damping in Roll and Aileron Rolling Effectiveness of Three Wings Having 2 Degree, 42 Degree and 62 Degree Sweepback
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WORK CARRIED ON AT LAL↗
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Results for “ROLL”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A theoretical analysis of the effect of aileron inertia and hinge moment on the maximum rolling acceleration of airplanes in abrupt aileron rolls
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AILERONS - DEFLECTION↗
Roll-to-Roll Manufacturing of Solid Oxide Fuel Cells
The overall goal of this project is to develop a high-volume electrode electrolyte assembly (EEA) production capability to significantly increase throughput of solid oxide fuel cell (SOFC) manufacturing and reduce the cost while maintaining the same level of performance. Specifically, four approaches will be adopted: 1) optimization of the lamination process and correlation of the EEA properties and performance with the lamination conditions; 2) scale up of the lamination process and demonstration of >10 ft of EEA; 3) further increase of the EEA throughput via slot-die coating and demonstration of > 5 m/min in coating the thick anode layer; and 4) minimization of the anode thickness to reduce material cost.
30 DIRECT ENERGY CONVERSION↗
Roll-to Roll Manufacturing of Low Cost and Safer Lithium-Ion Batteries
Final technical report
25 ENERGY STORAGE↗
Theoretical damping in roll and rolling effectiveness of slender cruciform wings
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CONTROL, LATERAL↗
A Preliminary Investigation of the Effects of Frequency and Amplitude on the Rolling Derivatives of an Unswept-wing Model Oscillating in Roll
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Fisher, Lewis R↗
A collection of data for zero-lift damping in roll of wing-body combinations as determined with rocket-powered models equipped with roll-torque nozzles
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Stone, David G↗
A method utilizing data on the spiral, roll-subsidence, and dutch roll modes for determining lateral stability derivatives from flight measurements
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Klawans, Bernard B↗
Wind-tunnel Investigation of Effect of Sweep on Rolling Derivatives at Angles of Attack up to 13 Degrees and at High Subsonic Mach Numbers, Including a Semiempirical Method of Estimating the Rolling Derivatives
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Wiggins, James W↗
Theoretical analysis of the rolling motions of aircraft using a flicker-type automatic roll stabilization system having a displacement-plus-rate response
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Curfman, Howard J , Jr↗
Wind-tunnel Investigation at Low Speed of the Effects of Symmetrical Deflection of Half-delta Tip Controls on the Damping in Roll and Yawing Moment Due to Rolling of a Triangular-wing Model
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Wolhart, Water D↗
A collection of data for zero-lift damping in roll of wing-body combinations as determined with rocket-powered models equipped with roll-torque nozzles
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Stone, David G↗
Notes on damping in roll and load distributions in roll at high angles of attack and high subsonic speed
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Source record↗
Wind-tunnel investigation at high subsonic speeds to determine the rolling derivatives of two wing-fuselage combinations having triangular wings, including a semiempirical method of estimating the rolling derivatives
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Wiggins, James W↗
Study of the Attack of an Automatically Controlled Interceptor on a Maneuvering Bomber with Emphasis on Proper Coordination of Lift-acceleration and Roll-angle Commands During Rolling Maneuvers
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Mathews, Charles W↗
Wind-tunnel investigation of effect of sweep on rolling derivatives at angles of attack up to 13 degrees and at high subsonic Mach numbers, including a semiempirical method of estimating the rolling derivatives
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Wiggins, James W↗
Low-speed Measurement of Tail Contribution to Rolling Stability Derivatives and Air-flow Angularity at the Tail for an X-tail Model in Steady Roll Including Some Effects of Wing-tip Stores
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Riley, Donald R↗
Let's Roll! Rolling Out or Deploying SEPG Assets
The topics covered in this slide presentation are: the general approach to software quality improvement (SQI) at Jet Propulsion Institute, the SQI deployment process, and lessons learned in regard to SQI. The Software Engineering Process Group (SEPG) is the group charged with SQI. The initial focus of the Software Quality Improvement (SQI) Project is on mission-critical software for flight projects, their spacecraft and instrument systems, and their ground systems.
process improvements↗