NASA Scientific and Technical Aerospace Reports

20060002378 General Electric Global Research, Niksayuna, NY, USA
Wear Prediction of Strip Seals Through Conductance
Turnquist, Norman; Ghasripoor, Farshad; Kowalczyk, Mark; Couture, Bart; 2004 NASA Seal/Secondary Air System
Workshop, Volume 1; October 2005; 15 pp.; In English; See also 20060002371; Original contains color illustrations; No
Copyright; Avail.: CASI: A03, Hardcopy
Test data indicate strong influence of conductance in rub behavior of strip seals at speeds in excess of 50 m/s. Material
strength appears to have little effect on rub for strip seals with aspect ratios \h0.07 A predictive model is established as a tool
to help select the strip material and in design of the strip Best strip material selection and design would extend the strip seal
s ability to severe rub events beyond the abradable thickness
Derived from text
Seals (Stoppers); Mechanical Properties; Wear; Abrasion; Aspect Ratio
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AIRCRAFT STABILITY AND CONTROL
Includes flight dynamics, aircraft handling qualities, piloting, flight controls, and autopilots. For related information see also 05 Aircraft
Design, Testing and Performance; and 06 Avionics and Aircraft Instrumentation.
20060002281 Austro Control G.m.b.H., Vienna, Austria
Operational Results and Standardization Issues of Wide Area Multilateration Systems for Civil Air Traffic Control
Purposes
Bartacek, Heinz; Langhans, Werner; Scheiflinger, Christian; Wolfmayr, Bernhard; Schreiber, Helmut; Proceedings of the Fifth
Integrated Communications, Navigation, and Surveillance (ICNS) Conference and Workshop; November 2005, pp. 1-25; In
English; See also 20060002231; Original contains color illustrations; No Copyright; Avail.: CASI: A03, Hardcopy; Available
from CASI on CD-ROM only as part of the entire parent document
The use of multilateration techniques for airspace surveillance of aircraft is rapidly gaining momentum in Europe. The
wide area multilateration system (WAM) installed in the Terminal Area of Innsbruck airport, Austria, has gone fully
operational in November 2004. Eurocontrol has established a Taskforce on Multilateration issues and is currently adopting its
surveillance strategy to account for the high potential of this surveillance technique as a substitute to secondary surveillance
radar, since this technique is independent from airborne navigation systems. In EUROCAE, a working group has been installed
for the development of minimum performance standards in analogy to the ED-117 ASMGCS standard. At ICAO level, the
SASP group has started to look for an integration of wide area multilateration into operational documents, such as PANS-ATM
and into documents dealing with separation of aircraft based on different surveillance techniques. This paper shows
performance results of the operational WAM system in the Innsbruck region for ATC, it discusses the progress of
standardisation efforts and it provides an outlook on future WAM activities in Europe.
Author
Air Traffıc Control; Civil Aviation; Surveillance Radar
09
RESEARCH AND SUPPORT FACILITIES (AIR)
Includes airports, runways, hangars, and aircraft repair and overhaul facilities; wind tunnels, water tunnels, and shock tubes; flight
simulators; and aircraft engine test stands. Also includes airport ground equipment and systems. For airport ground operations see 03
Air Transportation and Safety. For astronautical facilities see 14 Ground Support Systems and Facilities (Space).
20060002270 Federal Aviation Administration, USA
Continuing the Commitment to Capacity
Mohler, Gisele; Proceedings of the Fifth Integrated Communications, Navigation, and Surveillance (ICNS) Conference and
Workshop; November 2005; 29 pp.; In English; See also 20060002231; Original contains color illustrations; No Copyright;
Avail.: CASI: A03, Hardcopy; Available from CASI on CD-ROM only as part of the entire parent document
Last summer, Department of Transportation Secretary Norman Y. Mineta released FAA’s latest study on airport capacity.
The study reveals that 15 airports, in some of the nation’s busiest cities, will need additional capacity by 2013, and eight more
will face capacity limitations by 2020. Even now the pressure is building at many airports and within U.S. airspace due to
significant increases in air traffic volume. In one year s time, double-digit increases have occurred in operations at some of
the nation s key ( OEP) airports. At Dulles, for example, operations are up more than 19 percent; Boston and Fort Lauderdale,
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