Search found 11652 matches

by zeke
Wed Jan 17, 2018 12:11 pm
Forum: Civil Aviation
Topic: Etihad to retire A330 freighter fleet
Replies: 27
Views: 5240

Re: Etihad to retire A330 freighter fleet

Maybe this is Saudi parking all of their freighters is a indication of the freight capacity dumping in the Middle East is unsustainable.

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by zeke
Wed Jan 17, 2018 9:58 am
Forum: Technical/Operations
Topic: 737 nose creases
Replies: 5
Views: 1062

Re: 737 nose creases

lightening I think he means lightning... Lightening protection is the reason why. On the Airbus aircraft, there is a difference between early and late models, the later models have more lightening protection strips on them as the weather radar changed. Early weather radar in Airbus aircraft did not...

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by zeke
Wed Jan 17, 2018 2:57 am
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

Just a few replies ago, you were arguing that takeoff TSFC was indicative of cruise TSFC. Are you now arguing that the TXWB will have an OPR improvement over takeoff and the GE9 won't? No argument at all, I stated fact in your quote from GE the basis was “per-pounds-of-thrust basis‘, and the only t...

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by zeke
Tue Jan 16, 2018 7:03 pm
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

Given the GE9 OPR of 60 vs the GE90 of 42, a 10% fuel burn improvement seems achievable. This would explain why GE has devoted 5-7 years and several billions of dollars to GE9 development. The OPR improvement is hardly "marketing double speak". With an OPR of 52, the Trent XWB fuel burn l...

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by zeke
Tue Jan 16, 2018 5:22 am
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

Zeke, your comments surprise me. In the past, you've used TSFC (Thrust Specific Fuel Consumption) and have been quite precise about its definition. What GE states is consistent with your use of TSFC. Please quote where I've stated in this thread that the 779 will burn 10% less fuel than the 77W. My...

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by zeke
Tue Jan 16, 2018 2:10 am
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

No, I believe exactly what the statement says. At the same cruise thrust level, TSFC (Thrust Specific Fuel Consumption) for the GE9X will 90% that of the GE90. Takeoff thrust has nothing to do with cruise TSFC levels. I am sorry where is that written in that comment, specifically “cruise thrust lev...

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by zeke
Mon Jan 15, 2018 5:50 pm
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

"A blend of evolutionary and revolutionary designs will enable the GE9X to be the most fuel-efficient jet engine GE has ever produced on a per-pounds-of-thrust basis. It’s designed to deliver a 10% improved aircraft fuel burn versus the GE90-115B-powered 777-300ER" That says the GE9X engi...

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by zeke
Mon Jan 15, 2018 1:41 pm
Forum: Technical/Operations
Topic: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?
Replies: 53
Views: 2932

Re: Honest Discussion. Which Plane is More Efficient.....The A351 or 779?

This is my take on this discussion Block fuel over a given city pair, the A350-1000 will be ahead CASK/CASM, both airframes can sit 440 passengers, whichever airframe burns less fuel over that route would generally win, as fuel is a major fraction of the costs. If you look at anything except maximum...

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by zeke
Sun Jan 14, 2018 4:06 pm
Forum: Military Aviation & Space Flight
Topic: Canada - Future Fighter Capability Project
Replies: 16
Views: 1590

Re: Canada - Future Fighter Capability Project

I see Canada has purchased 18 Australian F/A-18 A/B plus spares to be delivered next year.

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by zeke
Sun Jan 14, 2018 3:43 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

By the time Lufthansa were taking delivery of their first 747-8's they realized it was a dud. They had 747-8 commitments for 20 firm and 20 options and the easiest way to cancel the options was to order 779's instead. I doubt they would have selected the 779 at the time without the 748 issue at han...

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by zeke
Sun Jan 14, 2018 3:15 pm
Forum: Technical/Operations
Topic: Hypothetical windowless airliner questions (technical)
Replies: 26
Views: 2062

Re: Hypothetical windowless airliner questions (technical)

If your going windowless, why stick with a tube with wings ?

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by zeke
Sun Jan 14, 2018 1:52 pm
Forum: Technical/Operations
Topic: De Havilland Comet Dimensions for FEA
Replies: 15
Views: 1100

Re: De Havilland Comet Dimensions for FEA

Worth also keeping in mind that the RAF Nimrod was based upon the comet. It might be easier to get some dimensions from the Nimrod considering they only stoped flying around 2010.

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by zeke
Sun Jan 14, 2018 1:43 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

mat66 wrote:
I you add 6F you end up way below the A35K at about 300-320. Cathay's 779 will either be one step up from the A35K or have F, more C or both.


The current 4 class 77W seats fewer than the 3 class A350-900, I would also expect a 4 class 779 to seat fewer than a 3 class A350-1000.

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by zeke
Sun Jan 14, 2018 12:07 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

We were discussing total passenger capacity, where exactly does ZFW/DOW/Any other weight metric go into that equation? Because history repeats itself. Many operators replaced the 744 with the 77W despite the 744 lifting 14% more passengers. The 744 was always at a disadvantage as it had around 9% h...

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by zeke
Sun Jan 14, 2018 6:47 am
Forum: Civil Aviation
Topic: Dueling 787s, VS overtakes UA en route LHR-LAX
Replies: 15
Views: 4986

Re: Dueling 787s, VS overtakes UA en route LHR-LAX

Why the non standard level ?

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by zeke
Sun Jan 14, 2018 2:45 am
Forum: Technical/Operations
Topic: De Havilland Comet Dimensions for FEA
Replies: 15
Views: 1100

Re: De Havilland Comet Dimensions for FEA

A few of the accident reports would have good detail on the stress calculations of the crack growth. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.226.7667&rep=rep1&type=pdf Also see appendix 1 of this document http://xa.yimg.com/kq/groups/14513087/1326009573/name/TSwift_Comet.pdf

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by zeke
Sun Jan 14, 2018 2:28 am
Forum: Technical/Operations
Topic: A320 Family TOGA Thrust Rarity
Replies: 16
Views: 1482

Re: A320 Family TOGA Thrust Rarity

A few months ago we were having issues logging on to Rekyavik CPDLC and we needed our oceanic clearance. Instead of giving us two more minutes to sort the issue, Reykjavik insisted we copy the clearance by voice. Over HF! The FO had to ask them to "say again" about ten times. Oceanic clea...

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by zeke
Sun Jan 14, 2018 1:40 am
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

You neglect to mention the (at least) 30 more Y seats from 10-abreast seating vs 9 abreast seating in the A35J. And as per load factor, and 80% load factor on yearly average means that there are plenty of times where the plane is filled to the last seat. What is the yield are those seats going to a...

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by zeke
Sat Jan 13, 2018 3:19 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

A350-1000: 324 (54/270), J @ 2-2-2 with 77" pitch and no direct aisle access Y @ 32" pitch and 18" width - 777-9: 365 (63/302), J @ 2-3-2 with JAL/KE/WY style direct aisle access seats Y @ 32" pitch and 17.35" width (before anyone chirps, the difference in seat width betwee...

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by zeke
Sat Jan 13, 2018 2:38 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

As much as I prefer the A350 to the 777X, the 25% figure is unrealistic when comparing the -1000 to the 779. Just keep in mind the 779 is going to have in all likelihood more drag in cruise compared to the 77W due to the longer fuselage, larger engine nacelles, and higher wing area all resulting in...

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by zeke
Sat Jan 13, 2018 1:07 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

The 777-9 is much larger than the A35J and there is very little incremental cost to operating the A35J for an airline that already operates the A359. So I think the chances at Lufthansa are pretty good. The 77W to 779 is only around 1 row of business and two rows of economy, hardly “much larger”, h...

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by zeke
Sat Jan 13, 2018 7:44 am
Forum: Civil Aviation
Topic: IAH to become first airport in North America to have nonstop service to all 6 inhabited continents with launch of SYD
Replies: 38
Views: 8807

Re: IAH to become first airport in North America to have nonstop service to all 6 inhibited continents with launch of SY

intotheair wrote:
The inhibited continents? Maybe they need to loosen up with a scotch or two or a skinny dip in the ocean...


Maybe they meant inhibited incontinence ? For passengers that really did give a cr** !

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by zeke
Fri Jan 12, 2018 10:36 pm
Forum: Civil Aviation
Topic: American Airlines A330-300 Retirements?
Replies: 16
Views: 6696

Re: American Airlines A330-300 Retirements

According to FlightAware, N278AY flew from CLT to SAL on 5 NOV 2017 and has not returned (as of 12 JAN 2018), and N276AY made the same voyage 3 days ago. This appears to be the beginning of the end for the A333 at American, unless someone has additional information. Looks like the additional inform...

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by zeke
Fri Jan 12, 2018 10:32 pm
Forum: Civil Aviation
Topic: JFK Diverting Flights due to shear
Replies: 65
Views: 11602

Re: JFK Diverting Flights due to shear

It’s only 12kts crosswind on 22L with that gust value of 19G24.

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by zeke
Fri Jan 12, 2018 10:30 pm
Forum: Civil Aviation
Topic: JFK Diverting Flights due to shear
Replies: 65
Views: 11602

Re: JFK Diverting Flights due to shear

I listened to the ATIS, didn’t hear LVP in force, and Wx at CAT1 minima. The b wind didn’t sound that bad, 190 18G24 with RW22L in use.

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by zeke
Fri Jan 12, 2018 9:40 pm
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

Not even the 77W burns 25% more fuel than the A35K in comparable configurations, the 779 certainly won't. Don't believe the Airbus marketing crap (nor Boeing's). This is some analysis I did of the A350-1000 early long flight I did with 310 passengers onboard from the cockpit phtoto which showed the...

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by zeke
Fri Jan 12, 2018 8:29 pm
Forum: Non-Aviation
Topic: Delta in hotseat with Chinese government over Tibet and Taiwan listing
Replies: 50
Views: 5071

Re: Delta in hotseat with Chinese government over Tibet and Taiwan listing

Super80Fan wrote:
Delta should just tell China to take a hike.


That would end well

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by zeke
Fri Jan 12, 2018 3:40 am
Forum: Civil Aviation
Topic: Upcoming operators of Airbus A350-1000XWB
Replies: 80
Views: 13747

Re: Upcoming operators of Airbus A350-1000XWB

LH still has the 779 on order, however they've operated jets of similar size together before. Agreed AI is a no go. But everything else sounds plausible. -Rowen What routes does LH have that need the range/payload of the 779. It’s a lot more expressive aircraft to own and operate compared to the A3...

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by zeke
Fri Jan 12, 2018 12:20 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Airbus Beluga XL Production Thread

Slug71 wrote:
I don't think more than 5 can be operated due to restrictions in the Type Certificate, as previously mentioned.


No such issue, they simply don’t need more aircraft.

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by zeke
Thu Jan 11, 2018 2:01 pm
Forum: Technical/Operations
Topic: Take-Off/Landing RVR equivalent?
Replies: 11
Views: 892

Re: Take-Off/Landing RVR equivalent?

However, many airlines do use 1000ft as the equivalent point. For the purposes of what was described above, at my airline if the RVR went below required after we passed the FAF equivalent point (1000ft) then we would continue to minimums. ILS approaches have a FAP, final approach point which is a d...

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by zeke
Thu Jan 11, 2018 8:24 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Airbus Beluga XL Production Thread

Not with one stop, would take two. Parts except for engines would go by ship.

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by zeke
Thu Jan 11, 2018 6:33 am
Forum: Technical/Operations
Topic: A320 Family TOGA Thrust Rarity
Replies: 16
Views: 1482

Re: A320 Family TOGA Thrust Rarity

Question: In general, if the airplane takes off at MTOW, or at the maximum usable weight given temperature and runway length, it will be a TOGA thrust takeoff? I'm thinking a Phoenix or Vegas transcon on a July afternoon is probably a TOGA takeoff ? In other words, you keep loading the airplane unt...

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by zeke
Thu Jan 11, 2018 6:27 am
Forum: Technical/Operations
Topic: FADEC: How does it work?
Replies: 21
Views: 1747

Re: FADEC: How does it work?

FADEC is like the engine control module you would have on your car. In old jet engines they used have mechanical fuel control units, these got replaced by FADEC which is a electronic device that controls the fuel and other engine components/accessories. It reduced parts, improves economics, improves...

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by zeke
Thu Jan 11, 2018 1:31 am
Forum: Civil Aviation
Topic: U.S. Dept of Commerce backs Boeing in dispute with Bombardier
Replies: 1284
Views: 79093

Re: Canada files WTO complaint vs US over Boeing CSeries trade complaint

Who would ever have thought the US not following their own WTO obligations. How many times have we seen that.

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by zeke
Wed Jan 10, 2018 9:32 pm
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Airbus Beluga XL Production Thread

SomebodyInTLS wrote:
By the way, no-else notice the odd "comb" structures under the tail cone? I'm guessing that's something to do with minimum unstick testing (like the little cantilever thing they used on the A380).


I noticed them, they will be the frames for the two ventral strakes I mentioned above.

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by zeke
Wed Jan 10, 2018 8:45 pm
Forum: Technical/Operations
Topic: Take-Off/Landing RVR equivalent?
Replies: 11
Views: 892

Re: Take-Off/Landing RVR equivalent?

There is no FAF on an ILS approach

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by zeke
Wed Jan 10, 2018 1:00 pm
Forum: Technical/Operations
Topic: Take-Off/Landing RVR equivalent?
Replies: 11
Views: 892

Re: Take-Off/Landing RVR equivalent?

125 m RVR (Category A, B and C) or 150 m RVR (Category D), and use 75 m for landing.

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by zeke
Wed Jan 10, 2018 12:45 pm
Forum: Civil Aviation
Topic: China new order for 184 Airbus A320 delivery 2019-2020
Replies: 32
Views: 6715

Re: China new order for 184 Airbus A320 delivery 2019-2020

The A321 and A330 are very popular domestically within China. I am amazed at many of the secondary cities that I fly over that I know very little about, however their size would indicate they have a significant population that are becoming wealthy enough to fly regularly.

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by zeke
Wed Jan 10, 2018 11:15 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Airbus Beluga XL Production Thread

No need they will be done by surface transport

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by zeke
Wed Jan 10, 2018 10:52 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Airbus Beluga XL Production Thread

It should undergo a partial flight test schedule and be normally registered.

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by zeke
Wed Jan 10, 2018 9:39 am
Forum: Civil Aviation
Topic: Is a Airbus and Boeing joint venture possible.
Replies: 25
Views: 2691

Re: Is a Airbus and Boeing joint venture possible.

A metric Boeing.....

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by zeke
Wed Jan 10, 2018 9:00 am
Forum: Technical/Operations
Topic: Australian Aircraft at LAX
Replies: 2
Views: 552

Re: Australian Aircraft at LAX

Just waiting for the tide to go out so they can drive them back ;)

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by zeke
Wed Jan 10, 2018 8:37 am
Forum: Civil Aviation
Topic: Norwegian switches engines on all Dreamliner aircraft
Replies: 62
Views: 20302

Re: Norwegian switches engines on all Dreamliner aircraftc

ikolkyo wrote:
What a disaster, RR has really dropped the ball on this one. I’m surprised that the Trent XWB is fairing so well since the 2 engines are similar in some ways. RR needs to pick it up quick.


Given how reliable the XWB engine has been I do not see the similarities.....

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by zeke
Wed Jan 10, 2018 8:32 am
Forum: Civil Aviation
Topic: Norwegian switches engines on all Dreamliner aircraft
Replies: 62
Views: 20302

Re: Norwegian switches engines on all Dreamliner aircraft

The article says “Dyrt motorbytte Listeprisen for én motor ligger på rundt 160 millioner kroner. Dermed vil det koste totalt 6,8 milliarder kroner å skifte ut begge motorene på alle de 21 flyene.” Which says “Expensive motor exchange The list price for one engine is around 160 million kroner. Thus, ...

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by zeke
Wed Jan 10, 2018 4:35 am
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Official A330 Production/Flight Testing - 2018

Ok, I stand corrected. I just remember reading years ago that Airbus can never sell the aircraft. This might be the restricted part of the certification. To be honest I don't know ;) My guess would be no production certificate was obtained for them. The were produced under the A300 production certi...

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by zeke
Tue Jan 09, 2018 11:31 pm
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Official A330 Production/Flight Testing - 2018

Excellent point. Airbus never tried to get EASA certification for the Beluga, however, and will never do it for the XL. As far as I understand it they operate them under some kind of permanent test airplane certificate for internal use only. I'm sure someone with more inside can elaborate on this b...

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by zeke
Tue Jan 09, 2018 10:49 pm
Forum: Civil Aviation
Topic: Airbus Beluga XL Production Thread
Replies: 119
Views: 16562

Re: Official A330 Production/Flight Testing - 2018

CFRPwingALbody wrote:
Why didn't Airbus remove the vertical tail plain and used a tail like the AN-225?


It would add weight, they have kept it much the same, please note it looks like they will also have two ventral strakes added.

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by zeke
Tue Jan 09, 2018 4:37 pm
Forum: Technical/Operations
Topic: De icing
Replies: 10
Views: 1114

Re: De icing

Sounds like ice that forms from cold soaked cold fuel from the previous sector. Often when you land fuel can be -10 or -20 degrees. With humid air ice will form over the fuel tank area. When fuel is added to the tanks the temperature of the fuel in the tanks rises towards the temperature of the fuel...

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by zeke
Mon Jan 08, 2018 10:18 pm
Forum: Civil Aviation
Topic: Airbus offers China Industrial Partnership for A380 Programme
Replies: 123
Views: 16803

Re: Airbus offers China Industrial Partnership for A380 Programme

I don’t see why they could not ship completed sections and wings to China like the A320 for assembly. The low rate production on the A380, and higher number of man hours per airframe would benefit grater from the lower wages in China. For all we know this could be extrapolated even further with a co...

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