NDLI: Integrated application of active controls (iaac) technology to an advanced subsonic transport project. initial act configuration design study

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Integrated application of active controls (iaac) technology to an advanced subsonic transport project. initial act configuration design study

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1980
Description	The initial ACT configuration design task of the integrated application of active controls (IAAC) technology project within the Energy Efficient Transport Program is summarized. A constrained application of active controls technology (ACT) resulted in significant improvements over a conventional baseline configuration previously established. The configuration uses the same levels of technology, takeoff gross weight, payload, and design requirements/objectives as the baseline, except for flying qualities, flutter, and ACT. The baseline wing is moved forward 1.68 m. The configuration incorporates pitch-augmented stability (which enabled an approximately 10% aft shift in cruise center of gravity and a 45% reduction in horizontal tail size), lateral/directional-augmented stability, an angle of attack limiter, wing load alleviation, and flutter mode control. This resulted in a 930 kg reduction in airplane operating empty weight and a 3.6% improvement in cruise efficiency, yielding a 13% range increase. Adjusted to the 3590 km baseline mission range, this amounts to 6% block fuel reduction and a 15.7% higher incremental return on investment, using 1978 dollars and fuel cost.
File Size	2655690
Page Count	44
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820024473
Archival Resource Key	ark:/13960/t93825n3r
Language	English
Publisher Date	1980-10-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Aerodynamic Configurations Transport Aircraft Optimal Control Landing Gear Wing Planforms Control Surfaces Aircraft Design Active Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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