Altri ritardi per il Boeing 747-8


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DATE:30/09/10
SOURCE:Air Transport Intelligence news

Boeing pushes 747-8F delivery back to mid-2011
By Stephen Trimble

Boeing will delay first delivery of the 747-8 freighter by several months and add a fifth aircraft to the flight test fleet to correct a series of problems.
First delivery to 747-8F launch customer Cargolux is reset from late 2010 to mid-2011, Boeing says. The company has not disclosed any schedule changes for the 787-8 Intercontinental, the passenger-carrying variant expected to be delivered in late 2011.
The delay follows a series of "discoveries" that disrupted the schedule for completing certification testing on time: a low-frequency vibration that appears in "certain flight conditions" must be resolved, Boeing says.
Secondly, an inboard aileron actuator is not working as expected. Boeing says that neither issue requires structural changes to fix the problems.
"We understand the issues encountered in flight test and are working through the solutions," says Pat Shanahan, vice-president and general manager of programmes for Boeing Commercial Airplanes.
Delay to the 747-8F comes one month after Boeing pushed back first delivery of the 787 from late 2010 to the first quarter of 2011.
Boeing originally planned to deliver the first 747-8F in late 2009, but first delayed the programme in October 2008. That delay caused Boeing to take a $1 billion charge on the programme.
However, the new schedule setback "is not expected to have a material impact on Boeing's 2010 financial results", Boeing says.

http://www.flightglobal.com/article...-pushes-747-8f-delivery-back-to-mid-2011.html
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Però garantiscono il rispetto dei tempi per la versione pax...:D

DATE:30/09/10
SOURCE:Air Transport Intelligence news

No change to 747-8I schedule despite freighter slip
By Stephen Trimble

Boeing has not made any changes to the schedule of the 747-8 Intercontinental passenger aircraft, despite pushing back the delivery date of the freighter version.
Delivery of the 747-8F is being postponed by several months, to mid-2011, while Boeing addresses issues that cropped up in flight testing.
But a spokesman for the airframer says there is "no change" to the 747-8I plan. He adds that the first example is "on plan and scheduled to deliver in late 2011", although cautions that there are always risks attached to first-model development.

http://www.flightglobal.com/article...o-747-8i-schedule-despite-freighter-slip.html
 
ai fini pratici che differenza passa tra la versione PAX con la Cargo per i problemi sopra citati?
Non è facile dirlo, ma il "programma" è unico quindi se sei in ritardo sulla fase 1(l'aereo cargo), è ben difficile che tu possa recuperare nella breve fase 2 (il pax).
 
e' possibile che il pax non risenta troppo di questo nuovo stop in quanto la produzione e consegna saranno dopo i primi cargo, ma certo...
e' buffo che ieri, dopo la notizia, il titolo Boeing e' salito decisamente, forse il contratto per gli F18 della Navy ha fatto la differenza; ad ogni modo fa un certo effetto vedere che
con tutti gli strumenti di calcolo oggi disponobili la nuova ala ha problemi di flutter.