Search

Your search keyword '"LANDING of jet transports"' showing total 27 results
Start Over Descriptor "LANDING of jet transports"
27 results on '"LANDING of jet transports"'

1. ANOPP landing-gear noise prediction with comparison to model-scale data.

Author

Burley, Casey L., Brooks, Thomas F., Humphreys Jr., William M., and Rawls Jr., John W.

Subjects
*LANDING of jet transports, *AIRCRAFT noise, *BOEING airplanes, *AERODYNAMICS, *JET transports, *AERONAUTICS
Abstract

The NASA Aircraft NOise Prediction Program (ANOPP) offers two empirically based methods to predict landing gear noise: the "Fink" method and the "Guo" method. The "Guo" method is the most recent and was developed almost exclusively using Boeing full-scale landing gear data. The "Fink" method was developed over 25 years ago, using both model and full-scale data. The details of the two methods are compared and contrasted. The Fink method is found to follow Strouhal scaling, and hence predictions are made with the scale model geometry as input. The Guo method was found not to scale for arbitrary sized landing gear and hence the method required full-scale geometry inputs and the resulting predictions required scaling in order to compare with the measured model results. Application of these methods to a model-scale landing gear is investigated by comparing predicted results from each method with measured acoustic data obtained for a high-fidelity, 6.3%-scale, Boeing 777 main landing gear. The measurements were obtained in the NASALangley Quiet Flow Facility for a range of Mach numbers at a large number of observer angles. Noise spectra and contours as a function of polar and azimuthal angle characterize the directivity of landing gear noise. The measured spectra and contours are compared to predictions made using the Fink method and to scaled predictions from the Guo method. This is the first time an extensive set of landing gear noise directivity data are available to compare and assess predictive capabilities. Both methods predict comparable amplitudes and trends for the flyover locations, but deviate at sideline locations. Neither method fully captures the measured noise directivity. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

2. Noise spectra and directivity for a scale-model landing gear.

Author

Humphreys Jr., William M. and Brooks, Thomas F.

Subjects
*AUDIO equipment, *SPECTRUM analysis, *LANDING of jet transports, *TRANSDUCERS, *COMPRESSIBILITY, *AERODYNAMICS
Abstract

An extensive experimental study has been conducted to acquire detailed noise spectra and directivity data for a high-fidelity, 6.3%-scale, Boeing 777 main landing gear. The measurements were conducted in the NASA Langley Quiet Flow Facility using a 41-microphone directional array system positioned at a range of polar and azimuthal observer angles with respect to the model. DAMAS (Deconvolution Approach for the Mapping of Acoustic Sources) array processing as well as straightforward individual microphone processing were employed to compile unique flyover and sideline directivity databases for a range of freestream Mach numbers (0.11 - 0.17) covering typical approach conditions. Comprehensive corrections were applied to the test data to account for shear layer ray path and amplitude variations. This allowed proper beamforming at different measurement orientations, as well as directivity presentation in free-field emission coordinates. Four different configurations of the landing gear were tested: a baseline configuration with and without an attached side door, and a noise reduction concept "toboggan" truck fairing with and without side door. Spectral analyses demonstrated that individual microphones could establish model spectra. This finding permitted the determination of unique, spatially-detailed directivity contours of spectral band levels over a hemispherical surface. Spectral scaling for the baseline model confirmed that the acoustic intensity scaled with the expected sixth-power of the Mach number. A comparison of spectra and directivity between the baseline gear and the gear with an attached toboggan indicated that the toboggan fairing may be of some value in reducing gear noise over particular frequency ranges. Finally, spectrum results were scaled quantitatively to data obtained from flyover tests of a full-scale 777 aircraft. The comparison showed good agreement in frequency and level, suggesting the general applicability of the model-scale noise results. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

3. Transient responses of a VLFS during landing and take-off of an airplane.

Author

Masashi Kashiwagi

Subjects
AIRPLANES, TAKEOFF of jet transports, LANDING of jet transports, BESSEL functions
Abstract

The transient elastic deformation of a pontoon-type very large floating structure (VLFS) caused by the landing and take-off of an airplane is computed by the time-domain mode-expansion method. The memory effects in hydrodynamic forces are taken into account, and great care is paid to numerical accuracy in evaluating all the coefficients appearing in the simultaneous differential equations for the elastic motion of a VLFS. The time-histories of the imparted force and the position and velocity of an airplane during landing and take-off are modeled with data from a Boeing 747-400 jumbo jet. Simulation results are shown of 3-D structural waves on a VLFS and the associated unsteady drag force on an airplane, which is of engineering importance, particularly during take-off. The results for landing show that the airplane moves faster than the structural waves generated in the early stage, and the waves overtake the airplane as its speed decreases to zero. The results for take-off are essentially the same as those for landing, except that the structural waves develop slowly in the early stage, and no obstacle exists on the runway after the take-off of airplane. The additional drag force on an airplane due to the elastic responses of the runway considered in this work was found to be small in magnitude. [ABSTRACT FROM AUTHOR]

Published
2004

4. Happy Landings.

Subjects
LANDING of jet transports, AIR pilots, AIRPLANE landing gear
Abstract

The article reports that the French-built Caravelle jetliner landed safely in Geneva, Switzerland after its landing gear was crippled. It states that the pilot inserted a small drag parachute to check the plane's speed before landing. It notes that the drag chute is a safety device which helps in preventing landing accidents.

Published
1961

5. Frontlines.

Subjects
NAVIES, GRANTS in aid (Public finance), COLLISIONS at sea, NUCLEAR submarine accidents, LANDING of jet transports
Abstract

This section offers news briefs on the navies as of March 2, 2009. The 2009 Newman's Own Awards is currently accepting grant proposals for ways to improve the quality of life of U.S. service members and their families. Authorities have acknowledged the low-speed collision of nuclear submarines from Great Britain and France on February 16. Residents of rural communities in southeast Virginia and northeastern North Carolina are preparing their case to counter the plan of the U.S. Navy to construct a jet landing strip in their backyard.

Published
2009

6. Prone to failure.

Subjects
*LANDING of jet transports
Abstract

Provides information on landing gear as most failure-prone in commercial jet transports. Study by McDonnell Douglas.

Published
1995

7. An Upbeat View of a Cold New York Day.

Author

RAINEY, JAMES

Subjects
AIR pilots, LANDING of jet transports, ACCIDENTS
Abstract

The article offers information on the film "Sully" directed by 86-year-old veteran filmmaker Clint Eastwood which focuses on the 2009 miracle landing of a U.S. Airways jetliner on Hudson River in New York with whom Tom Hanks portrays the role of pilot Chesley "Sully" Sullenberger. The nightmares, insomnia and port-traumatic symptoms experiences of Sullenberger after the jetliner landing incident is also discussed.

Published
2016

8. Stranded U.S. Bizjet Leaves Iran.

Subjects
DASSAULT Falcon (Jet transport), LANDING of jet transports, AIRCRAFT accidents, ACCIDENT prevention
Abstract

The article reports that an American-registered Dassault Falcon 900 jet transport left an Iranian airport about three weeks after it had made an emergency landing in early December 2012 due to a technical problem.

Published
2013

9. Frontlines.

Subjects
FREEDOM of expression, LANDING of jet transports, UNIVERSITY & college admission
Abstract

The article presents an update on the U.S. Navy as of September 27, 2010. Naval Academy dean of admission Bruce Latta said that the school had the highest congressional nominations for class of 2014 at 17,417. U.S. Supreme Court Justice Stephen Breyer supports the freedom of expression even if it is filled with hate in relation to the plan of a Florida pastor to burn Qurans and pickets of Westboro Baptist Church at military funerals to oppose homosexuality. North Carolina Governor Beverly Perdue and state legislators opposed a proposed jet landing site.

Published
2010

11. Falcon performs first LPV approach.

Author

SARSFIELD, KATE

Subjects
DASSAULT Falcon (Jet transport), LANDING of jet transports, INSTRUMENT landing systems
Abstract

The article reports that the Dassault Falcon 2000LX business jet has become the first to fly an instrument approach with a published localizer performance with vertical guidance (LV).

Published
2016

12. Control Tower Unresponsive To 2 Planes in Washington.

Author

O'Connor, Anahad and Creswell, Julie

Subjects
*COMMERCIAL aeronautics, *LANDING of jet transports, *TRANSPORT planes, *BOEING 737 (Jet transport)
Abstract

Two passenger airliners landed at Ronald Reagan National Airport in Washington without clearance or guidance from the airport's control tower early Wednesday, and officials were looking into the possibility that the air traffic controller on duty had fallen asleep. One of the planes, an American Airlines Boeing 737 from Dallas, approached the airport around midnight but aborted its landing and circled the airport after pilots got no response from the tower. About 15 minutes later, a United AirlinesAirbus 320 from Chicago also tried unsuccessfully to establish contact with the tower. [ABSTRACT FROM PUBLISHER]

Published
2011

13. Inquiry Blames Pilots, Airbus.

Author

PASZTOR, ANDY

Subjects
*LANDING of jet transports, *AIRCRAFT accident investigation
Abstract

The article focuses on a report on the failed landing of a SATA Internacional plane in the Azores in August 2009, which found pilot error and automation problems on Airbus A320 jetliners.

Published
2011

14. Qantas Returns A380 Planes to Use.

Author

TUMOLILLO, M. AMEDEO

Subjects
*AIRBUS A380, *AIRBUS aircraft, *LANDING of jet transports
Abstract

Qantas, Australia's largest carrier, said it will begin to return its Airbus A380 superjumbo jetliners to service this coming Saturday, 23 days after the blow-out of an engine on one of the planes forced an emergency landing in Singapore. The gradual return of Qantas's A380s to the air was given the go-ahead after the company, in consultation with Rolls-Royce and Airbus, completed an inspection of the problematic engine, a statement from Qantas said Monday. [ABSTRACT FROM AUTHOR]

Published
2010

15. Australia: Cause Cited in Qantas Blast.

Author

ASSOCIATED PRESS

Subjects
*LANDING of jet transports, *EXPLOSIVES, *JET planes, *OXYGEN
Abstract

Air safety investigators say a pressurized oxygen cylinder set off the blast that blew a large hole in the side of a Qantas jet last month, forcing an emergency landing. The release of Friday's interim report by the Australian Transport Safety Bureau confirmed earlier suspicions by investigators that an exploding oxygen tank was the cause. The Boeing 747-400 was en route from Hong Kong to Melbourne, Australia, on July 25 when the explosion blew a hole in the fuselage, causing a loss of cabin pressure and forcing an emergency landing in Manila. [ABSTRACT FROM PUBLISHER]

Published
2008

16. Qantas Jetliner Lands Safely in Philippines After Hole Is Torn in Fuselage.

Author

Maynard, Micheline, Johnston, Tim, Wald, Matthew L., and Schmitt, Eric

Subjects
*LANDING of jet transports, *JET planes, *AIRPLANES
Abstract

The Australian authorities opened an investigation on Friday into what caused a section of the fuselage of a Qantas airliner to burst open en route from Hong Kong to Melbourne, Australia, forcing the Boeing 747-400 to make an emergency landing in Manila. The jumbo jet, which carried 346 passengers and 19 crew members, landed safely on Friday and those on board left without injury. As a piece of fuselage the size of a sedan ripped from the plane, the jet, Qantas Flight 30, had been forced to descend steeply to 10,000 feet from 29,000 feet. [ABSTRACT FROM PUBLISHER]

Published
2008

17. Superjet inquiry shifts to climb riddleCrashed Superjet failed to climb after missed approach.

Author

Kaminski-Morrow, David

Subjects
SUKHOI Superjet 100 (Jet transport), AIRCRAFT accident investigation, JET transport accidents, JET transport testing, LANDING of jet transports, AIRPLANE landing gear, ICELAND politics & government, TWENTY-first century
Abstract

The article reports that Iceland's civil aeronautics agency has determined that the landing gear of a Sukhoi Superjet 100 was retracted before it suffered an accident on the runway of Keflavik airport in that country on July 21, 2012. The transport was conducting a missed approach test at low altitude as part of its certification program.

Published
2013

18. Plane’s landing gear collapses, bursts into flames at Vnukovo airport; no one hurt.

Author

Interfax

Subjects
BOEING 737 (Jet transport), LANDING of jet transports, AIR traffic control, ACCIDENTS
Abstract

MOSCOW. May 18 (Interfax) – The left leg of a UTair Boeing 737 landing gear burst into flames after landing at Moscow’s Vnukovo airport on Saturday morning, but no one was injured, a source with the airport’s air traffic control service told Interfax. [ABSTRACT FROM PUBLISHER]

Published
2013

19. Poor discipline led A319 to land short.

Author

KAMINSKI-MORROW, DAVID

Subjects
AIRCRAFT accident investigation, HUMAN factors in aircraft accidents, LANDING of jet transports, PILOTING of jet transports, AIRBUS A319
Abstract

The article reports that investigators of an aircraft accident in Italy in which an Airbus A319 jet transport of the airline industry firm Wind Jet crashed short of the runway in Palermo, Sicily have indicated that the transport was at a lower altitude than the proper approach path before its pilots made visual contact with the runway. Further indications of pilot error during the approach are discussed.

Published
2012

20. Similar incidents recorded on A320s.

Subjects
LANDING of jet transports, AIRBUS A320
Abstract

The article considers an investigation by Spain finding that there have been 17 incidents in which Airbus A320 jet transports have been forced to land with with the nose wheel rotated by 90 degrees.

Published
2012

21. TAM A330 landed safely despite its twisted nose-gear.

Author

KAMINSKI-MORROW, DAVID

Subjects
LANDING of jet transports
Abstract

The article discusses the safe emergency landing of an Airbus A330-200 jet transport of the airline TAM at John F. Kennedy (JFK) airport in New York City after its air pilots reported a misaligned nose-gear.

Published
2012

22. A340 landed hard after microburst encounter.

Subjects
FLIGHT training, LANDING (Aeronautics), AIRBUS A340, LANDING of jet transports, AIRPORT runway accidents
Abstract

The article reports that the Portuguese aircraft operator HiFly has increased its focus on go-around training following the microburst encounter and hard landing of an Airbus A340-300 aircraft at an airport on Darwin, Australia on February 28, 2012. Topics include the weather conditions during the incident and the Australian Transport Safety Bureau.

Published
2012

23. LH A380 go Lone Star.

Subjects
LANDING of jet transports
Abstract

The article reports that the A380 Airbus superjumbo was landed in Texas by Deutsche Lufthansa for the first time since the beginning of the company's daily service for Houston, Texas-Frankfurt, Germany route.

Published
2012

24. Investigators detail dynamics of ANA hard landing.

Author

KAMINSKI-MORROW, DAVID

Subjects
AIRCRAFT accident investigation, LANDING of airplanes, FLIGHT recorders, LANDING of jet transports, ACCIDENT investigation, ACCIDENTS
Abstract

The article reports on the flight-data recorder information of All Nippon Airways Co. Ltd.'s Boeing 767-300's hard landing in Tokyo, Japan. It mentions that the structure of the fuselage has been damaged. It also discusses the detailed investigation from the Japan Transport Safety Board which include an evaluation of the cockpit-voice.

Published
2012

25. ERJ damaged by 'over-confident' pilot.

Author

KAMINSKI-MORROW, DAVID

Subjects
HUMAN factors in aircraft accidents, AIRCRAFT accident investigation, LANDING of airplanes, AIRCRAFT accidents, LANDING of jet transports, EMBRAER airplanes, AIR pilots, ACCIDENTS
Abstract

The article reports on the investigation of the French Bureau of Accident Investigation (BEA) involving the hard landing of Régional Embraer ERJ-145, which badly damaged the aircraft in Ljubljana, Slovenia. The investigators found that crew turned onto the base leg even if the aircraft was too close to the runway. None of the passengers and crew was injured but the aircraft's landing gear needs replacement.

Published
2012

26. Bounce deceived MD-11F crash crew.

Author

KAMINSKI-MORROW, DAVID

Subjects
AIRCRAFT accident investigation, MCDONNELL Douglas MD-11 (Jet transport), LANDING of jet transports, HUMAN factors in aircraft accidents
Abstract

The article examines the investigation of an aircraft accident in Riyadh, Saudi Arabia in which an MD-11 cargo jet transport of the airline Lufthansa Cargo suffered a crash on landing. The conclusion of the investigation that the transport's pilots failed to recognize the landing bounce that preceded a series of touchdowns which caused the destruction of the transport is discussed.

Published
2012

27. Avoiding the gamble of jet roulette.

Subjects
MCDONNELL Douglas MD-11 (Jet transport), LANDING of jet transports, AERONAUTICAL safety measures
Abstract

The author offers opinions on the safety of the MD-11 jet transport, stating that the use of the transports as air freighters increases its susceptibility to accidents during landing, requiring added training for air pilots.

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results