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Technical Paper

Aircraft Noise Control Practices Related to Ground Transport Vehicles

1981-08-01
810853
Aircraft noise control practices which may have application to ground vehicles are presented. Noise sources, design criteria, prediction methods and test facilities are described. Recent application of aircraft noise control methods in the use of sound insulation, structural damping, air conditioning and engine noise are discussed. The overall technical approach (design process) to solving airplane noise problems is emphasized.
Technical Paper

Intermodal Module Concept for Freight

1980-09-01
801050
A concept is presented for a family of sturdy, lightweight, inexpensive, forkliftable freight shipping cartons for the smaller shipments, the less-than-truckload, less-than-containerload shipments making up the majority of air freight. The cartons are modular and dimensioned for transportation system efficiency and compatibility with international container and U.S. unit-load standards. Module suitability to small shippers and many transportation vehicles indicates potential applications and benefits could be far reaching throughout the transportation system. Prototype cartons have been built for demonstration.
Technical Paper

Advanced Flutter Design Techniques

1973-02-01
730935
The general characteristics of flutter problems affecting the structural design of both subsonic and supersonic transport aircraft are discussed in relation to configuration constraints resulting from mission performance and environmental impact requirements. Combined analytical and experimental approaches employed in the assessment and solution of these problems are outlined. Included are discussions of the extensive application of automated procedures in the use of high-speed digital computers for flutter analysis and the dependence on highly sophisticated wind tunnel flutter model construction techniques to provide reliable experimental data. Illustrations of the application of design techniques to supersonic and subsonic aircraft are presented.
Technical Paper

Developing Effective Human Engineering Standards for Color Flight Displays

1987-11-13
872424
The new color display Aerospace Recommended Practice. ARP 4032, now undergoing final approval by SAE represents a significant improvement in the documentation of useful human engineering data. Working with operationally defined requirements for effective color displays, a subcommittee of the SAE G-10 (Aerospace Behavioral Engineering Technology) committee has developed an ARP which translates the operational objectives outlined by the pilot community into specific functional requirements and test procedures which can be used by engineers to assure that color CRT displays will perform properly under all operational conditions. This work was accomplished by pooling the knowledge and experience of key individuals involved in display applications design, equipment manufacture, human performance assessment and operational use. The ARP marks a significant advancement in the means of dealing objectively with what has been a highly subjective facet of design and operation.
Technical Paper

Mission-Adaptive Wing

1987-11-13
872419
The Mission-Adaptive Wing (MAW) employs composite materials and uses a digital fly-by-wire flight control system to change wing contour to maintain peak aerodynamic efficiency over a large flight envelope. Future aircraft will require large subsonic and supersonic lift-to-drag ratios for maximum cruise ranges at high and low altitudes. At the same time, they will require the ability to pull high lift coefficients for maneuvers. The Mission-Adaptive Wing provides these Features by deflecting flexible wing surfaces to achieve the wing camber and smooth continuous upper surface contour required for peak aerodynamic performance. The MAW program completed manual control flight testing in November 1986 and started automatic control flight testing in the summer of 1987. During the manual phase of flight testing, surfaces were set in discrete positions. Resulting data confirmed the aerodynamic potential to achieve all program goals.
Technical Paper

Self Contained Portable AFDE With On-Board CNC, Custom Operator Interface and RF Network

2000-09-19
2000-01-3011
Automated Floor Drilling Equipment (AFDE) have been used at Boeing for drilling floor panel, galley, lavatory and other holes in Boeing planes. New controller and drill spindle designs made it possible to redesign the AFDE as a self-contained unit with on-board CNC, custom operator interface, RF network and more compact drill spindles for increased robustness and versatility.
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