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New OEW Of 772LR To Be Delivered To Air India  
User currently offlineFerdinando From Italy, joined Feb 2007, 9 posts, RR: 0
Posted (7 years 6 months 3 weeks 1 day 1 hour ago) and read 4896 times:

Who knows the new Operating Empty Weight and range of new 772LR who must be delivered to Air India?

10 replies: All unread, jump to last
 
User currently offlineVTNYC From United States of America, joined Jan 2006, 277 posts, RR: 0
Reply 1, posted (7 years 6 months 3 weeks 1 day 1 hour ago) and read 4754 times:

Quoting Ferdinando (Thread starter):
Who knows the new Operating Empty Weight and range of new 772LR who must be delivered to Air India?

From A.net Aircraft Data:

The 777-200LR will be the longest ranging airliner, capable of flying 17,445km (9240nm) - 18 hours flying time. It will achieve this with awesomely powerful 489kN (110,000lb) thrust GE90-110B1 turbofans, a significantly increased max takeoff weight and optional auxiliary fuel tanks in the rear cargo hold. Other changes include 2m (6.5ft) raked wingtips, new main landing gear, structural strengthening and optional overhead crew and flight attendant rest stations above the cabin.


Operating empty weight
326,000 lb (148,181 kg)

Maximum takeoff weight
766,000 lb (347,450 kg)

Max. fuel capacity
53,440 US gal (202,287 L)



First Flight, PA001 DEL-FRA-LHR-JFK; Dream- JFK-COK on a B6 787
User currently offlineConcordeBoy From , joined Dec 1969, posts, RR:
Reply 2, posted (7 years 6 months 3 weeks 1 day ago) and read 4739 times:

Quoting VTNYC (Reply 1):
From A.net Aircraft Data:

Rather poor source... and the information is years out of date, even on this aircraft.


User currently offlineEI321 From Iraq, joined Jul 2009, 0 posts, RR: 0
Reply 3, posted (7 years 6 months 3 weeks 1 day ago) and read 4724 times:

Yes they really should update the databases on this site!

User currently offlineMpdpilot From United States of America, joined Jul 2006, 993 posts, RR: 0
Reply 4, posted (7 years 6 months 3 weeks 1 day ago) and read 4655 times:

Quoting Ferdinando (Thread starter):
Who knows the new Operating Empty Weight and range of new 772LR who must be delivered to Air India?

So I am not understanding this is there a NEW OEW for the 772LR or are we talking about the OEW of the 772LR.



One mile of highway gets you one mile, one mile of runway gets you anywhere.
User currently offlineDa man From United States of America, joined Sep 2001, 887 posts, RR: 12
Reply 5, posted (7 years 6 months 3 weeks 23 hours ago) and read 4483 times:

It is my understanding that the so-called thrust bump option for the GE90-110B1 has been chosen as an option by AI.


War Eagle!
User currently offlineKaitak744 From United States of America, joined Jul 2005, 2379 posts, RR: 3
Reply 6, posted (7 years 6 months 3 weeks 21 hours ago) and read 4358 times:

The 777-200LR has been through a total of 3 performance specification changes:

1. Boeing's range/payload predictions were off by several hundred nautical miles. At the end of 777-300ER flight testing, Boeing changed the specifications of the 777-300ER and 777-200LR to be what they really were, and subsequently many more airlines ordered the planes (Boeing predicted the range/payload to be a lot lower).

2. After the 3rd or 4th 777-300ER frame, Boeing made some aerodynamic and weight improvements, thus increasing the range of the 777-300ER and 777-200LR.

3. Due to the fact that the 777-200LR still could not do SYD-LHR-SYD nonstop, Boeing made some more weight improvements to the 777-200LR, starting from the 3rd frame (the Air India frame). This is what the thread starter, Ferdinando, is asking about.


User currently offlineGigneil From United States of America, joined Nov 2002, 16347 posts, RR: 85
Reply 7, posted (7 years 6 months 3 weeks 21 hours ago) and read 4341 times:

There is simply NO WAY to know the OEW of a plane without specs from the OPERATOR, not the manufacturer, which is why Ferdinando is asking about the Air India ones specifically.

The OEW of an airframe includes its interior, which is operator spec.

NS


User currently offlineEI321 From Iraq, joined Jul 2009, 0 posts, RR: 0
Reply 8, posted (7 years 6 months 3 weeks 21 hours ago) and read 4329 times:

I remember seeing on a show about making 747s that no aircraft, even identical models is kg for kg the same weight.

User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12150 posts, RR: 51
Reply 9, posted (7 years 6 months 3 weeks 21 hours ago) and read 4305 times:

As I understand it, Boeing was trying to trim some 12,000lbs from the "green" B-777-200LR, before the customer added equipment was installed.

User currently offlineSunriseValley From Canada, joined Jul 2004, 4992 posts, RR: 5
Reply 10, posted (7 years 6 months 3 weeks 21 hours ago) and read 4265 times:

Quoting Kaitak744 (Reply 6):
Due to the fact that the 777-200LR still could not do SYD-LHR-SYD nonstop, Boeing made some more weight improvements to the 777-200LR, starting from the 3rd frame (the Air India frame).

Are you certain that there has been a weight reduction ? If so it has been a well kept secret. IF OF and Boeing are talking again about the 777 as has been alluded to in another thread then it is reasonable to surmise that something is being planned in this respect but I have not seen any specifics anywhere.
The passenger ready weight of a type for a particular airline seems to be one of the most closely guarded secrets in the business and appears to be privileged information limited to a limited number of individuals within the airline.


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