Il 747-8F volerà l'8 febbraio
- Autore Discussione TW 843
- Data d'inizio
beh, più del -400.... pensa al confronto con un -200!!
Ragazzi che meraviglia, mi sono visto decollo e atterraggio.... pure io facendo foto ;oP
Ragazzi che meraviglia, mi sono visto decollo e atterraggio.... pure io facendo foto ;oP
Decolla il gigante La seconda vita del 747
Primo volo per il nuovo Jumbo Jet: un terzo in più di autonomia a pieno carico, consumi ridotti e 467 passeggeri in tre classi
ROMA - La seconda vita del Boeing 747, meglio conosciuto come Jumbo Jet, inizia a 40 anni. Questa sera alle 19 ora italiana (alle 10 del mattino a Everett, nei dintorni di Seattle, base del colosso dell'aviazione Usa), il nuovo Jumbo staccherà il carrello dalla pista per la prima volta.
Quello che si appresta a diventare il più agguerrito concorrente dell'Airbus 380, l'altro gigante dei cieli da pochi mesi in volo sopra le nostre teste, è un concentrato di tradizione e tecnologie all'avanguardia. Per la nuova versione sono stati adottati degli accorgimenti tecnici che pur lasciando all'apparenza inalterata la silhouette del 747-8, riconoscibile per i quattro reattori sulle ali e soprattutto per la linea sinuosa della fusoliera con due piani riservati ai passeggeri, ne modificano e di molto il rendimento, la manovrabilità per i piloti ed i consumi.
La prima novità è rappresentata proprio dal profilo delle ali, completamente ridisegnate per aumentare la portanza. Altra novità i motori General Electric di nuova generazione che provvedono ad una spinta ancora più potente rispetto al passato garantendo consumi di gran lunga più efficienti. Queste due caratteristiche permetteranno al 747-8 di avere un raggio di azione di 15mila chilometri a pieno carico, un terzo in più rispetto ai 10mila chilometri della prima versione.
Il nuovo gigante avrà anche molto spazio all'interno ed ospiterà 51 passeggeri in più rispetto alla vecchia versione. In totale prenderanno posto 467 persone in tre classi. Lungo oltre 76 metri e apertura alare vicina ai 69 metri, peso di 200 tonnellate a vuoto velocità di 988 chilometri l'ora con velocità di crociera di 908. Ultima curiosità: il 747 bis potrebbe presto diventare il nuovo "Air Force One" del presidente degli Stati Uniti.
La Repubblica
Primo volo per il nuovo Jumbo Jet: un terzo in più di autonomia a pieno carico, consumi ridotti e 467 passeggeri in tre classi
ROMA - La seconda vita del Boeing 747, meglio conosciuto come Jumbo Jet, inizia a 40 anni. Questa sera alle 19 ora italiana (alle 10 del mattino a Everett, nei dintorni di Seattle, base del colosso dell'aviazione Usa), il nuovo Jumbo staccherà il carrello dalla pista per la prima volta.
Quello che si appresta a diventare il più agguerrito concorrente dell'Airbus 380, l'altro gigante dei cieli da pochi mesi in volo sopra le nostre teste, è un concentrato di tradizione e tecnologie all'avanguardia. Per la nuova versione sono stati adottati degli accorgimenti tecnici che pur lasciando all'apparenza inalterata la silhouette del 747-8, riconoscibile per i quattro reattori sulle ali e soprattutto per la linea sinuosa della fusoliera con due piani riservati ai passeggeri, ne modificano e di molto il rendimento, la manovrabilità per i piloti ed i consumi.
La prima novità è rappresentata proprio dal profilo delle ali, completamente ridisegnate per aumentare la portanza. Altra novità i motori General Electric di nuova generazione che provvedono ad una spinta ancora più potente rispetto al passato garantendo consumi di gran lunga più efficienti. Queste due caratteristiche permetteranno al 747-8 di avere un raggio di azione di 15mila chilometri a pieno carico, un terzo in più rispetto ai 10mila chilometri della prima versione.
Il nuovo gigante avrà anche molto spazio all'interno ed ospiterà 51 passeggeri in più rispetto alla vecchia versione. In totale prenderanno posto 467 persone in tre classi. Lungo oltre 76 metri e apertura alare vicina ai 69 metri, peso di 200 tonnellate a vuoto velocità di 988 chilometri l'ora con velocità di crociera di 908. Ultima curiosità: il 747 bis potrebbe presto diventare il nuovo "Air Force One" del presidente degli Stati Uniti.
La Repubblica
Con il passare degli anni, ad ogni nuova versione, è diventato sempre più bello. Penso che con la versione Pax raggiungerà veramente il top. Speriamo di vederlo presto...
Sarebbe bello rivederlo in tutte le flotte delle Major.
Ma credo che rimarrà un prodotto di nicchia.
Ma credo che rimarrà un prodotto di nicchia.
Differenza del primo volo del Dreamliner, questa volta sulla collinetta del Future of flight cera pocca gente a vedere
Sara che sia un make up di un aereo gia esistente, anche se e il re degli cieli
Sara che sia un make up di un aereo gia esistente, anche se e il re degli cieli
Problemi in vista:
747-8F flap buffet could force landing gear door redesign
By Jon Ostrower on March 24, 2010 11:11 AM
by flightblogger
Boeing is investigating an unexpected buffet in the inboard flaps of the 747-8F, a design issue that may prompt a costly redesign and put significant pressure on the flight test schedule.
The buffet was first discovered following the first flight of the 747-8F on February 8th, when the aircraft extended its flaps to the maximum setting of 30 with the landing gear fully extended, say program sources.
Two independent program sources say landings with flaps set to 30 are being avoided until the issue is addressed.
Boeing confirmed the flaps 30 buffet, saying: "It is a discovery we are addressing. We expect to have discoveries during the tests and we then address them in due course. This is the nature of testing. It is the fundamental reason why we conduct a thorough flight-test program. You find issues and resolve them."
by flightblogger
The buffet, which has been described as "very apparent", has been traced to disruptive air flow coming off of the outboard landing gear doors.
Boeing ruled out a problem unique to RC501, the first 747-8F, as the same flap buffet was duplicated on RC522's March 15th first flight.
The second 747-8F test aircraft, RC521- the third to fly - made its maiden flight on March 17th.
The flaps on the 747-8F are one of the major aerodynamic changes incorporated into the latest version of Boeing's jumbo jet, with the outboard flaps single-slotted and inboard double-slotted.
By comparison, says one program source, the 747-400's flaps were triple-slotted allowing turbulent air to pass through; however, the single and double-slotted flaps provide "a lot more surface to cause a turbulent layer to form".
Unexpected structural buffet on aircraft surfaces can be common during flight testing, though the solution may vary from vortex generators to redirect the airflow or even a complete re-design of the disruptive part.
During the 777's flight test program in 1994, Boeing found the 777 discovered the aircraft's nose landing gear doors buffeted wildly when opening and closing at speed, prompting the installation of metal baffles in the nose landing gear well to redirect the airflow.
Boeing has devoted one of the three 747-8F test aircraft to addressing the flap buffet.
On March 22nd Boeing began flying RC522 with the outboard landing gear doors removed to assess the impact at the flaps 30 setting. The early flight tests confirmed that the source of the buffet was disruptive air flow from the landing gear doors. On March 23rd, RC522 flew with the upper portion of the outboard gear door re-attached.
Boeing is considering several solutions to the problem. One option involves reducing the flap extension to from 30 to 27. However, decreasing the maximum flap setting could raise the landing speed of the 747-8.
by flightblogger
The airframer has ruled out installing vortex generators on the inboard flaps to redirect the airflow, program sources say. The over-wing emergency escape slides on the 747-8I passenger variant could tear on the vortex generators.
The final impact of the 747-8F flap buffet is yet unclear. Sources say that without a final low-speed configuration, the aircraft cannot conduct community noise evaluations.
While RC522 is assigned to resolve the flaps 30 buffet, RC501 conducted variable center of gravity stalls. RC521 remains in post-first flight layup at Boeing Field.
Boeing is targeting the fourth quarter for certification and first delivery of the 747-8F to Luxembourg-based Cargolux, following a 1,600h flight test period and 2,100h of ground testing.
http://www.flightglobal.com/blogs/flightblogger/2010/03/747-8f-flap-buffet-could-force.html
747-8F flap buffet could force landing gear door redesign
By Jon Ostrower on March 24, 2010 11:11 AM
by flightblogger
Boeing is investigating an unexpected buffet in the inboard flaps of the 747-8F, a design issue that may prompt a costly redesign and put significant pressure on the flight test schedule.
The buffet was first discovered following the first flight of the 747-8F on February 8th, when the aircraft extended its flaps to the maximum setting of 30 with the landing gear fully extended, say program sources.
Two independent program sources say landings with flaps set to 30 are being avoided until the issue is addressed.
Boeing confirmed the flaps 30 buffet, saying: "It is a discovery we are addressing. We expect to have discoveries during the tests and we then address them in due course. This is the nature of testing. It is the fundamental reason why we conduct a thorough flight-test program. You find issues and resolve them."
by flightblogger
The buffet, which has been described as "very apparent", has been traced to disruptive air flow coming off of the outboard landing gear doors.
Boeing ruled out a problem unique to RC501, the first 747-8F, as the same flap buffet was duplicated on RC522's March 15th first flight.
The second 747-8F test aircraft, RC521- the third to fly - made its maiden flight on March 17th.
The flaps on the 747-8F are one of the major aerodynamic changes incorporated into the latest version of Boeing's jumbo jet, with the outboard flaps single-slotted and inboard double-slotted.
By comparison, says one program source, the 747-400's flaps were triple-slotted allowing turbulent air to pass through; however, the single and double-slotted flaps provide "a lot more surface to cause a turbulent layer to form".
Unexpected structural buffet on aircraft surfaces can be common during flight testing, though the solution may vary from vortex generators to redirect the airflow or even a complete re-design of the disruptive part.
During the 777's flight test program in 1994, Boeing found the 777 discovered the aircraft's nose landing gear doors buffeted wildly when opening and closing at speed, prompting the installation of metal baffles in the nose landing gear well to redirect the airflow.
Boeing has devoted one of the three 747-8F test aircraft to addressing the flap buffet.
On March 22nd Boeing began flying RC522 with the outboard landing gear doors removed to assess the impact at the flaps 30 setting. The early flight tests confirmed that the source of the buffet was disruptive air flow from the landing gear doors. On March 23rd, RC522 flew with the upper portion of the outboard gear door re-attached.
Boeing is considering several solutions to the problem. One option involves reducing the flap extension to from 30 to 27. However, decreasing the maximum flap setting could raise the landing speed of the 747-8.
by flightblogger
The airframer has ruled out installing vortex generators on the inboard flaps to redirect the airflow, program sources say. The over-wing emergency escape slides on the 747-8I passenger variant could tear on the vortex generators.
The final impact of the 747-8F flap buffet is yet unclear. Sources say that without a final low-speed configuration, the aircraft cannot conduct community noise evaluations.
While RC522 is assigned to resolve the flaps 30 buffet, RC501 conducted variable center of gravity stalls. RC521 remains in post-first flight layup at Boeing Field.
Boeing is targeting the fourth quarter for certification and first delivery of the 747-8F to Luxembourg-based Cargolux, following a 1,600h flight test period and 2,100h of ground testing.
http://www.flightglobal.com/blogs/flightblogger/2010/03/747-8f-flap-buffet-could-force.html
747-8F anche per BAWC
British Airways World Cargo Upgrades Freight Fleet To
Boeing 747-8f In New Deal With Global Supply Systems
*
British Airways World Cargo today announced that it has signed a five-year wet lease agreement with Global Supply Systems Limited (GSS), which will see its three Boeing 747-400 freighters replaced with new Boeing 747-8 freighters in early 2011. Further to its agreement with British Airways World Cargo, GSS will dry lease the freighters from Atlas Air.
*
The contract represents a significant investment by British Airways World Cargo. The three new Boeing 747-8f aircraft will be registered in the United Kingdom and operate to our existing schedule maintaining regular services through STN, HKG, FRA, PVG, ORD, DEL amongst others.
It has also been agreed that the new 747-8fs will be delivered in British Airways livery and incorporate the British Airways World Cargo logo.
*
Steve Gunning, managing director of British Airways World Cargo says: “
Our investment in the new Boeing 747-8f reinforces our commitment to the air cargo industry and demonstrates the importance British Airways places on cargo. The increased range and the environmental benefits that the 747-8f provides will significantly benefit our customers. Long-haul freighters form an integral part of our overall business strategy – providing flexibility and capacity on resilient and growing lanes – as we strive for continued excellence in all key areas of the business, including product range, customer service and, of course, network offering.
*
“I am also pleased to be continuing our relationship with our long-term freighter partners, GSS and Atlas Air.”
The Boeing 747-8 freighter provides an enhanced environmental performance owing to its new benchmark in fuel efficiency and noise reduction. The 747-8f has an increased range of 4,475 nautical miles (8,275 km), as well as 16% more cargo volume than the 747-400f. This means it is able to hold seven additional pallets, while maintaining the same nose and door loading capabilities for industry-standard 10-foot high pallets.
“BA World Cargo is a vital link in the global logistics chain, and it will be one of the first air carriers in the world to benefit from the 747-8 freighter’s leading-edge technology,” says William J. Flynn, President and Chief Executive Officer of Atlas Air Worldwide Holdings. “Through GSS, our new aircraft will give BA World Cargo increased capacity and revenue-generating capability in a growing airfreight market.”
FONTE BA and Airliners.net
British Airways World Cargo Upgrades Freight Fleet To
Boeing 747-8f In New Deal With Global Supply Systems
*
British Airways World Cargo today announced that it has signed a five-year wet lease agreement with Global Supply Systems Limited (GSS), which will see its three Boeing 747-400 freighters replaced with new Boeing 747-8 freighters in early 2011. Further to its agreement with British Airways World Cargo, GSS will dry lease the freighters from Atlas Air.
*
The contract represents a significant investment by British Airways World Cargo. The three new Boeing 747-8f aircraft will be registered in the United Kingdom and operate to our existing schedule maintaining regular services through STN, HKG, FRA, PVG, ORD, DEL amongst others.
It has also been agreed that the new 747-8fs will be delivered in British Airways livery and incorporate the British Airways World Cargo logo.
*
Steve Gunning, managing director of British Airways World Cargo says: “
Our investment in the new Boeing 747-8f reinforces our commitment to the air cargo industry and demonstrates the importance British Airways places on cargo. The increased range and the environmental benefits that the 747-8f provides will significantly benefit our customers. Long-haul freighters form an integral part of our overall business strategy – providing flexibility and capacity on resilient and growing lanes – as we strive for continued excellence in all key areas of the business, including product range, customer service and, of course, network offering.
*
“I am also pleased to be continuing our relationship with our long-term freighter partners, GSS and Atlas Air.”
The Boeing 747-8 freighter provides an enhanced environmental performance owing to its new benchmark in fuel efficiency and noise reduction. The 747-8f has an increased range of 4,475 nautical miles (8,275 km), as well as 16% more cargo volume than the 747-400f. This means it is able to hold seven additional pallets, while maintaining the same nose and door loading capabilities for industry-standard 10-foot high pallets.
“BA World Cargo is a vital link in the global logistics chain, and it will be one of the first air carriers in the world to benefit from the 747-8 freighter’s leading-edge technology,” says William J. Flynn, President and Chief Executive Officer of Atlas Air Worldwide Holdings. “Through GSS, our new aircraft will give BA World Cargo increased capacity and revenue-generating capability in a growing airfreight market.”
FONTE BA and Airliners.net
