Search found 885 matches

by widebodyphotog
Sat Dec 11, 2004 4:14 am
Forum: Civil Aviation
Topic: A340-500 Vs. 777-200LR, SIN-LAX
Replies: 56
Views: 11246

RE: A340-500 Vs. 777-200LR, SIN-LAX

This topic really has been done to death but I will add a few bits of info to those who have not participated in past discussions. As regarding cabin space: <i> The way to do seating is to scale seating space based on available floor area not cabin length. In point of fact the 777-200LR cabin length...

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by widebodyphotog
Sat Dec 11, 2004 3:40 am
Forum: Civil Aviation
Topic: 4 Engines 4 Long Haul?
Replies: 69
Views: 12738

RE: 4 Engines 4 Long Haul?

It's very hard for the general public to understand statistics on engine failure. Trex8 your point is very correct and simplifies things to some degree from a technical point of view. The failure rates of large commercial aircraft engines are basically the same and having more engines on an aircraft...

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by widebodyphotog
Sat Dec 04, 2004 11:51 am
Forum: Technical/Operations
Topic: 747 Fuel Dumping Question
Replies: 18
Views: 10339

RE: 747 Fuel Dumping Question

Thanks QuantasA332

Exactly right. Releasing fuel into the high speed airstream atomizes fuel into vapor and it dissipates suprisingly rapidly. Kerosene is relatively heavy but still has only 81% of the density of pure water.

widebodyphotog

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by widebodyphotog
Sat Dec 04, 2004 9:25 am
Forum: Technical/Operations
Topic: 747 Fuel Dumping Question
Replies: 18
Views: 10339

RE: 747 Fuel Dumping Question

Depending on the speed and altitude during the fuel dump, the fuel would evaporate before it ever reached the surface of the ocean. The environmental impact would be negligible unless the aircraft was flying below about 2500', and 175kts.

-widebodyphotog

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by widebodyphotog
Sat Nov 27, 2004 1:02 pm
Forum: Civil Aviation
Topic: EVA Expected To Order Four 772LRF
Replies: 34
Views: 4898

RE: EVA Expected To Order Four 772LRF

I just have to step in to say that speculation of an A345F or A350F as a competitor to 777F is rather silly. No matter how much payload the imaginary Airbus freigters had their cross section is too small to be attractive to freighter operators who need that kind of capacity. There is no way to load ...

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by widebodyphotog
Mon Nov 22, 2004 6:58 am
Forum: Technical/Operations
Topic: Max Range Of A Fully Loaded 747-400 Combi?
Replies: 3
Views: 8736

RE: Max Range Of A Fully Loaded 747-400 Combi?

Data for a Standard 747-400M with GE engines.

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by widebodyphotog
Mon Nov 22, 2004 1:03 am
Forum: Technical/Operations
Topic: Max Range Of A Fully Loaded 747-400 Combi?
Replies: 3
Views: 8736

RE: Max Range Of A Fully Loaded 747-400 Combi?

Range with Max payload, MZFW, for a 747-400M is 5200nm from an MTOW of 875,000lbs and 50nm shorter for 870,000lb MTOW. Conditions: Standard day, .85M cruise, 200nm reserve, <acronym title="Fargo - Hector International (FAR / KFAR), USA - North Dakota">FAR</acronym> International reserve fuel. -wideb...

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by widebodyphotog
Sat Nov 20, 2004 1:12 am
Forum: Technical/Operations
Topic: Why Not Supersonic With GE90s?
Replies: 26
Views: 7999

RE: Why Not Supersonic With GE90s?

A supersonic GE90 is not possible or practical and here is why. The enormous airflow requirements at Mach 2.0 for a GE90 would require an inlet diffuser at least 45 feet long (The inlet diffuser for Olympus 593 is 15 feet long). The diffuser has to slow the incoming air from Mach 2 to Mach .5 at the...

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by widebodyphotog
Fri Nov 19, 2004 8:54 pm
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

A word on an A330-200 Freighter from the man himself in August: <i>To cover the market segment below the A380 freighter, Airbus some years ago, was close to launching the A330-200 freighter version. Leahy says that despite potential orders for 40 to 50 aircraft, the project was shelved because the m...

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by widebodyphotog
Fri Nov 19, 2004 12:59 pm
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

<i>Another question that just comes up now. I think it is very certain that B777-200LR will burn less fuel per hour. However, due to ETOPS requirement, will it be required to take longer routes? I read in this forum a while ago that <acronym title="Singapore Airlines">SQ</acronym> A345 has a very fl...

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by widebodyphotog
Fri Nov 19, 2004 4:49 am
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

<i>But how much more expensive is the 772LR over A345's?</i> The 5 orders from the two customers you have mentioned are included with other 777's in their respective deals. But the sale prices of the 777-200LR's alone are 196-$202mil each. SIA's A340-500 deal was $2,200mil for 10 aircraft with multi...

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by widebodyphotog
Fri Nov 19, 2004 2:33 am
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

Someone asked about the difference in fuel burn? Right now the 777-200LR has a projected fuel burn from a 347.8t MTOW of 15,800lb/h. (The actual tests will probably show a bit better than this) The A340-500 has a cruise fuel burn of 19,100lb/h from a 365t MTOW. On average 18,500-19,000lb/h in servic...

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by widebodyphotog
Fri Nov 19, 2004 1:59 am
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

If <acronym title="Singapore Airlines">SQ</acronym> get's an extra 9-10t of cargo onboard the <acronym title="Singapore - Changi (SIN / WSSS), Singapore">SIN</acronym>-<acronym title="Newark - Liberty International (EWR / KEWR), USA - New Jersey">EWR</acronym> flights that equates to an extra $40,00...

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by widebodyphotog
Thu Nov 18, 2004 7:37 pm
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

<i>The A340-600 features a longer range</i> The 380t version of A340-600 has a projected longer range with maximum passenger load than the 777-300ER,7,900 nm vs 7,880 for 351.5t MTOW 777-300ER, but the 380t MTOW A340-600 and 351.5t 777-300ER do not yet exist. The figures from the respective manufact...

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by widebodyphotog
Thu Nov 18, 2004 10:32 am
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

<i>When <acronym title="Singapore Airlines">SQ</acronym> made their original RFP to the manufacturers, they called for an aircraft that could do <acronym title="Singapore - Changi (SIN / WSSS), Singapore">SIN</acronym>-NY non-stop, 365 days a year with 250 passengers and a decent cargo load. I'd exp...

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by widebodyphotog
Thu Nov 18, 2004 4:35 am
Forum: Civil Aviation
Topic: SQ Likely To Replace A345 With 772LR
Replies: 230
Views: 22932

RE: SQ Likely To Replace A345 With 772LR

<i><acronym title="Air France">AF</acronym>'s 773ERs were delivered months ago. They went in to service almost 7 months ago. Enough time to figure out how the plane is doing if you ask me........</i> I can tell you that <acronym title="Air France">AF</acronym>'s 777-300ER's have exceeded expectation...

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by widebodyphotog
Wed Nov 17, 2004 10:41 am
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

Now I am reduced to quoting myself to make a point: <i><b>Before the advent of Singapore Airlines A340-500 service <acronym title="Singapore - Changi (SIN / WSSS), Singapore">SIN</acronym>-<acronym title="Los Angeles - International (LAX / KLAX), USA - California">LAX</acronym> and <acronym title="S...

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by widebodyphotog
Wed Nov 17, 2004 12:46 am
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

Most 777-200ER's are used on long haul routes such as North America to Asia, Europe to Asia, and Europe to South America. By such airlines as Continental, United, Air France, All Nippon Airways, Korean Air, American, and Delta, just to name a few. Before the advent of Singapore Airlines A340-500 ser...

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by widebodyphotog
Tue Nov 16, 2004 2:49 pm
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

To clear up any confusion. A340-300 is the airbus competition for 777-200ER. The Airbus has a similar seating capacity, 295 vs 305 for 777, and similar range. The specifics as it relates to fuel burn are 14,700lb/h for the Airbus and 14,500lb/h, (w/RR Trent 895), for the Boeing. Block hour costs are...

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by widebodyphotog
Sun Nov 14, 2004 12:27 pm
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

Did someone mention takeoff performance? Here are the relevant numbers: A340-600 MTOW 804,679lbs ISA + 15Deg C 10,450ft 777-300ER MTOW 759,600lbs ISA + 15Deg C 9,890ft The difference becomes more stark when you put it in a real world perspective. At <acronym title="Atlanta - Hartsfield-Jackson Inter...

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by widebodyphotog
Sun Nov 14, 2004 12:21 am
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

It looks more and more likely that "A350" will be the Airbus effort to save it's market share in this aircraft size range. I think that it will have capacity and performance nearer to 777-200ER than the 7E7 and of course be offered to airlines at a typical Airbus low price relative to the competitio...

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by widebodyphotog
Sun Nov 14, 2004 12:07 am
Forum: Civil Aviation
Topic: B772 And A343
Replies: 37
Views: 4783

RE: B772 And A343

The cargo space is the same for both A market and B market 777-200. The added fuel tankage in the B market version comes from fully utilizing the center wing tank. There are no add-on tanks for 777-200. On the A market 777, the large aft cargo door is an option and on B market 777-200 it is standard...

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by widebodyphotog
Fri Nov 12, 2004 11:53 am
Forum: Civil Aviation
Topic: Richard Bransons 4 Engine Theory
Replies: 94
Views: 12216

RE: Richard Bransons 4 Engine Theory

I would feel more comfortable on a airplane with 4 engines if one engine fails. And the people that disagrees with me are full of crap.....

...Like I said, irrational

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by widebodyphotog
Fri Nov 12, 2004 10:01 am
Forum: Civil Aviation
Topic: A350: Authorization To Offer To Be Approved In 2004
Replies: 54
Views: 11587

A350: Authorization To Offer To Be Approved In 2004

So if the latest speculation on A350 is correct Airbus will build a twin engine successor to the A343 and challenge the 772ER market with a twin. Does this not go against their assertions about long range four engine vs twin engine safety? And if they compete with 7E7 it will have to be a twin with ...

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by widebodyphotog
Fri Nov 12, 2004 9:44 am
Forum: Civil Aviation
Topic: Richard Bransons 4 Engine Theory
Replies: 94
Views: 12216

RE: Richard Bransons 4 Engine Theory

This thread has reinforced a couple of long held beliefs I've had. First: The actions of human beings are governed largely by irrational fear. There is no evidence, technical, anecdotal or otherwise that four engines are safer than two. Yet you can tell people so and their fears lead them to believe...

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by widebodyphotog
Fri Nov 12, 2004 2:37 am
Forum: Civil Aviation
Topic: Richard Bransons 4 Engine Theory
Replies: 94
Views: 12216

RE: Richard Bransons 4 Engine Theory

I beg to differ, in an engine out condition on a four engine aircraft like a 747 or A340 the parameters of flight operation change. Depending on your weight and fuel condition you will have to land as soon as it is most feasible to do so. If it is possible to continue to your destination then you do...

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by widebodyphotog
Fri Nov 12, 2004 2:06 am
Forum: Civil Aviation
Topic: Richard Bransons 4 Engine Theory
Replies: 94
Views: 12216

RE: Richard Bransons 4 Engine Theory

Statistically you are twice as likely to have one engine failure on a four engine aircraft than a twin. And ETOPS maintenance and operation standards make the engines and ancillary systems of twins more reliable. Basically a four engine aircraft is flying with two engines it does not necessarily nee...

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by widebodyphotog
Wed Nov 10, 2004 8:10 pm
Forum: Civil Aviation
Topic: It's Official - Boeing Is Marketing The 777LRF
Replies: 66
Views: 10653

RE: It's Official - Boeing Is Marketing The 777LRF

MTOW's for various A/C mentioned in this post A380-800 = 1,234,576lbs(560,000kg) A380F (Airbus Projection) = 1,300,714lbs(590,000kg) 747-400ERF = 910,000lbs(412,770kg) 777-200ER(GE 90-94B or Trent 894) = 656,000lbs(297,560kg) <acronym title="Air Madagascar">MD</acronym>-11F = 602,500lbs(273,290kg) o...

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by widebodyphotog
Wed Nov 10, 2004 12:05 pm
Forum: Civil Aviation
Topic: It's Official - Boeing Is Marketing The 777LRF
Replies: 66
Views: 10653

RE: It's Official - Boeing Is Marketing The 777LRF

I have believed since it's inception that the 777-200LR would be the basis for the first new build, all freight 777. However I would be more inclined to believe at this point we will also see a freighter conversion program for 777-200/ER before or soon after the launch of 777-200LRF as the first 777...

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by widebodyphotog
Wed Nov 10, 2004 5:31 am
Forum: Civil Aviation
Topic: 7e7 A Widebody Or Narrow?
Replies: 14
Views: 4324

RE: 7e7 A Widebody Or Narrow?

Boeing has set the 7E7 cross-section at 226 inches, which is wider than the Airbus A300/310/330/340 cross section of 222 inches. So a twin Isle aircraft it will be most likely with 8 777 size seats across the cabin in economy. At a MTOW of 500,000lbs for the heaviest version 7E7-9, you'll most likel...

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by widebodyphotog
Tue Nov 09, 2004 9:51 am
Forum: Civil Aviation
Topic: Turbojets On "White Knight"
Replies: 2
Views: 2163

RE: Turbojets On "White Knight"

I believe the J85-GE-5's were chosen because they were available and they could get them at a very low price. A comparable turbofan would be something like A TF-731 or a PWC <acronym title="Precision Air Services (United Rep. of Tanzania)">PW</acronym>-300, both vastly more expensive engines even on...

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by widebodyphotog
Tue Nov 09, 2004 5:16 am
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

Please excuse my mistake made in haste, but the point is still valid.

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by widebodyphotog
Tue Nov 09, 2004 3:49 am
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

As for comparing an A340 to a 747? Proportionately it's not even close. Scaling up by weight the 747-400 would have engines of 49,000lbt instead of 56-61,000lbt available for the 744-400/ER. The A340-300 still has a wing loading that is 4% higher than the 747-400, but that disadvantage is made up by...

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by widebodyphotog
Mon Nov 08, 2004 5:47 pm
Forum: Civil Aviation
Topic: ANA's New 773ERs...what Routes?
Replies: 13
Views: 2941

RE: ANA's New 773ERs...what Routes?

Now no 773ER service to <acronym title="North American Airlines (USA)">NA</acronym> until 4th ship arrives, most likely after Sep05. First city served will be <acronym title="New York - John F. Kennedy International (Idlewild) (JFK / KJFK), USA - New York">JFK</acronym> then <acronym title="Washingt...

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by widebodyphotog
Mon Nov 08, 2004 12:03 am
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

I'm not sure I understand how the weight of the wings by themselves impacts cruise speeds. Maybe I missed something there. And limiting control inputs as a buffer against exceeding maximum load? How does that effect cruise conditions when there are no accelerations on the aircraft? I understand the ...

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by widebodyphotog
Sun Nov 07, 2004 11:28 pm
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

My DOC range adds in the relevant financing costs distributed over the utilization of the aircraft as well. Sorry I did not make that clear. The ICAO data shows a$76/hr difference in operating cost between the two. Taking into account the closeness in <i>block/hr</i> costs there is only a couple of ...

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by widebodyphotog
Sun Nov 07, 2004 10:01 pm
Forum: Civil Aviation
Topic: What Is The Cargo In The Belly Worth?
Replies: 26
Views: 5999

RE: What Is The Cargo In The Belly Worth?

Behramjee, I have the most recent annual reports for the airlines you mentioned with the exception of <acronym title="China Airlines (Taiwan)">CI</acronym> and <acronym title="Asiana Airlines (South Korea)">OZ</acronym>. You are basically right on, though I would expand the low end of that range dow...

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by widebodyphotog
Sun Nov 07, 2004 9:36 pm
Forum: Civil Aviation
Topic: What Is The Cargo In The Belly Worth?
Replies: 26
Views: 5999

RE: What Is The Cargo In The Belly Worth?

GARUDAROD, While my experience has not spanned the length of yours I do have a <i>few</i> years working with the cargo departments of several international airlines in the fields of, market analysis, systems development and operations management. Based on my experience, data, and the specific sector...

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by widebodyphotog
Sun Nov 07, 2004 8:44 pm
Forum: Civil Aviation
Topic: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?
Replies: 49
Views: 9552

RE: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?

Excuse me for miss-typing my thoughts. I meant to say A340-600 and 777-300ER. Not A340-500. The operating economics of the A340-600 and 777-300ER are known quantaties and I wanted to support my comments with real world data. While seat/mile costs for 747-400 are lower relative to the A346 and 773ER,...

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by widebodyphotog
Sun Nov 07, 2004 1:08 pm
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

Performance of any aircraft used in a comparison can be quantified, broken down into meaningful values and compared one to the other. That is what the discussion is about. And performance, is not the only thing that large aircraft sales turn on by any stretch of the imagination. Because of that, usi...

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by widebodyphotog
Sun Nov 07, 2004 12:54 pm
Forum: Civil Aviation
Topic: What Is The Cargo In The Belly Worth?
Replies: 26
Views: 5999

RE: What Is The Cargo In The Belly Worth?

<i>$800,000????? on one flight. Not hardly, unless the cargo was computer chips or bullion. In general most cargo shipped on passenger flights Transatlantic or Transpacific is well under $1 per kilo. Some speciality items as mentioned above or small packages will have a higher cost. Typical yield fo...

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by widebodyphotog
Sun Nov 07, 2004 12:27 pm
Forum: Civil Aviation
Topic: What Is The Cargo In The Belly Worth?
Replies: 26
Views: 5999

RE: What Is The Cargo In The Belly Worth?

Sorry my friend but someone has steered you a bit wrong. An example: At current market rates of $1.40/Kg including a hefty $.35/Kg fuel surcharge tacked on for good measure. A 747-400 going from <acronym title="New York - John F. Kennedy International (Idlewild) (JFK / KJFK), USA - New York">JFK</ac...

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by widebodyphotog
Sun Nov 07, 2004 11:39 am
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

<i>If you want to argue over 10-15 kts, fine. It's not significantly slower than any other jet was my point</i> When your burning 6,7, or more tonnes of fuel an hour and running a $7,000-$10,000/hr operating cost, the time saved by that 15kts over a long cruise adds up to a lot of $$$. These days it...

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by widebodyphotog
Sun Nov 07, 2004 11:32 am
Forum: Technical/Operations
Topic: A340 (Thumbs Down)
Replies: 32
Views: 5053

RE: A340 (Thumbs Down)

<i>This allows Airbus to design their wings lighter than Boeing aircraft. That doesn’t translate to slower operating speeds however unless you were to put the same wing on the Boeing equivalent.</i> Are you serious? On a weight/unit area the A340-200/300 wing is much heavier than 777 wing. It has sl...

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by widebodyphotog
Sun Nov 07, 2004 11:00 am
Forum: Civil Aviation
Topic: Is There A Market For Supersonic Airliners?
Replies: 11
Views: 4800

RE: Is There A Market For Supersonic Airliners?

<i>I wouldn't say that at all.... in fact, if you disregard the tail-mounts, trailing edges, and horizontal stabilizer-- it basically looks like Concorde did!</i> I don't think I can be persuaded to your side on that one. Because it has a horizontal stabilizer and straight wing, the airframe does no...

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by widebodyphotog
Sun Nov 07, 2004 10:22 am
Forum: Civil Aviation
Topic: Why No Shortened 757?
Replies: 19
Views: 3080

RE: Why No Shortened 757?

707, 727, 737, and 757 all share the same upper lobe cross-section. In my opinion Boeing should have ditched it 30 years ago and developed a more modern, spacious, and easier to build continuous cross-section fuselage. it's one of my greatest disappointments about Boeing. As pioneering as the 707 wa...

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by widebodyphotog
Sun Nov 07, 2004 9:53 am
Forum: Civil Aviation
Topic: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?
Replies: 49
Views: 9552

RE: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?

On a 1-stop route between <acronym title="Sydney - Kingsford Smith International (Mascot) (SYD / YSSY), Australia - New South Wales">SYD</acronym> and <acronym title="London - Heathrow (LHR / EGLL), United Kingdom">LHR</acronym> the A346 and 777-300ER have the lowest $/payload/mile cost of just abou...

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by widebodyphotog
Sun Nov 07, 2004 9:47 am
Forum: Civil Aviation
Topic: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?
Replies: 49
Views: 9552

RE: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?

I really don't think you'll see operators opt for all 3 extra fuel tanks on the 772LR. They are not really needed for the more practical routes it will be used on. You'll also notice in those compatability docs the OEW is not adjusted for the addition of those cargo hold fuel tanks either. The weigh...

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by widebodyphotog
Sun Nov 07, 2004 9:26 am
Forum: Civil Aviation
Topic: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?
Replies: 49
Views: 9552

RE: SYD-LHR In B777-LR Possible With Extra Fuel Tanks?

Actually for a one-stopper I was thinking of <acronym title="Sydney - Kingsford Smith International (Mascot) (SYD / YSSY), Australia - New South Wales">SYD</acronym>-<acronym title="Beijing - Capital (PEK / ZBAA), China">PEK</acronym>-<acronym title="London - Heathrow (LHR / EGLL), United Kingdom">L...

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by widebodyphotog
Sun Nov 07, 2004 8:43 am
Forum: Civil Aviation
Topic: A340-200 With -500 Engines
Replies: 33
Views: 7711

RE: A340-200 With -500 Engines

<i>Yes indeed, it's possibility Airbus leaves it open for future re-engining of -200 &-300 series 340s and these would be named -400.</i> Uh, not really... That is a test aircraft modified to test the in-flight characteristics of the Trent 500 and Trent 900 Engine under controlled flight conditions....

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