Search found 776 matches

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by kitplane01
Fri May 18, 2018 9:05 am
Forum: Civil Aviation
Topic: Outgoing AF CEO cites tax burden difference of 500M euro/yr with LH
Replies: 23
Views: 4784

Re: Outgoing AF CEO cites tax burden difference of 500M euro/yr with LH

The notion that things can be equalized across the entire EU is naive, no more than expecting things in Charleston South Carolina can be aligned with San Francisco California. But they can be compared. And one can be found better. And SF and South Carolina do get compared by companies all the time....

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by kitplane01
Sat May 12, 2018 12:50 am
Forum: Civil Aviation
Topic: U.S., UAE strike deal resolving contentious airline spat
Replies: 44
Views: 7073

Re: U.S., Emirates strike deal resolving contentious airline spat

If a country wants to subsidize its air carriers, why shouldn't it? In the US, airlines have proven that only a small minority are capable of handling themselves financially (and this is not surprising, given that air travel is the least efficient way of moving payloads). If a country values air tr...

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by kitplane01
Sat May 12, 2018 12:47 am
Forum: Civil Aviation
Topic: U.S., UAE strike deal resolving contentious airline spat
Replies: 44
Views: 7073

Re: U.S., Emirates strike deal resolving contentious airline spat

This is a poor deal for the US3. A huge win for EK and EY. Financial reportings show nothing of the underlining subsidies such as fuel purchase cost, government-purchased travel. The US should have reduced bilateral flights to 5 per day. That is more than plenty for the small nation that is the UAE...

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by kitplane01
Fri May 11, 2018 5:37 am
Forum: Civil Aviation
Topic: University professor claims: Bombardier trying to sell CRJ900 to Iran despite US sanctions
Replies: 65
Views: 8268

Re: Bombardier trying to sell CRJ900 to Iran despite US sanctions

F9Animal wrote:
Let's just put the nuke issue to the side.


No.

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by kitplane01
Mon May 07, 2018 12:54 am
Forum: Civil Aviation
Topic: LH Group - Why not operating all different group airlines under a single brand name?
Replies: 37
Views: 5940

Re: LH Group

I hope there is no more consolidation, we lost enough airlines so far. I don't think a merger will ever happen. These brands are distinctive and are adapted to the markets they serve. I can't imagine many Austrians would be happy to have their local brand replaced by Lufthansa. Educate an uninforme...

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by kitplane01
Mon May 07, 2018 12:46 am
Forum: Civil Aviation
Topic: Angolan Airlines orders 6 X Q400's
Replies: 11
Views: 2473

Re: Angolan Airlines orders 6 X Q400's

This appears to be a plane that the Market likes but Aviation snobs hate. Propellers are so passé. It's too small. It burns more fuel than an ATR72 (neglecting to mention that it is carrying more paying Customers further and faster). Why do you think the markets likes? Operationally, it's somewhere...

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by kitplane01
Sun May 06, 2018 5:28 am
Forum: Civil Aviation
Topic: Air India Privatization, by June-decision?
Replies: 299
Views: 23942

Re: Air India Privatization, by June-decision?

AI privatization is a done deal. Once Modi sets his eyes on something it is toast. It's not a done deal at all. A done deal would involve a contract with a willing buyer. No one is even willing to put in a bid. Name a date! By WHEN do you think the AI privatization will be done? An actual date! Bec...

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by kitplane01
Fri May 04, 2018 3:47 am
Forum: Civil Aviation
Topic: Air India Privatization, by June-decision?
Replies: 299
Views: 23942

Re: Air India Privatization, by June-decision?

The process is still politically motivated with enough wiggle room to prove GoI didn't giveaway family silver. Jaitley did his magic by keeping all real estate, AI(R) and AIESL. Combined worth more than debt GoI keeping. GoI always considered Engineering as National Security Interest entity, by kee...

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by kitplane01
Fri May 04, 2018 3:35 am
Forum: Civil Aviation
Topic: AA Cracks Down on FA Trip Hoarding and Selling
Replies: 61
Views: 13085

Re: AA Cracks Down on FA Trip Hoarding and Selling

This senior "leadership" has no backbone. It's not even leadership, they're a pure joke. So don't hold your breath. So many corporations lack leadership. Instead what they have is Greedership . I would think this is the natural result of contract provisions the union wanted, and it both h...

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by kitplane01
Fri May 04, 2018 3:33 am
Forum: Civil Aviation
Topic: AA Cracks Down on FA Trip Hoarding and Selling
Replies: 61
Views: 13085

Re: AA Cracks Down on FA Trip Hoarding and Selling

slider wrote:

Generally, some FAs will add incentives by putting money on a trip in open time to get rid of it, which is a common thing, but that's MUCH different from selling a trip outright.


Huh? Can you explain what this means? And why this is OK but the selling trips is bad?

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by kitplane01
Fri May 04, 2018 3:30 am
Forum: Civil Aviation
Topic: AA Cracks Down on FA Trip Hoarding and Selling
Replies: 61
Views: 13085

Re: AA Cracks Down on FA Trip Hoarding and Selling

This is why people hate the US carriers. The FAA needs to force a mandatory retirement age for FAs, and the SkyHags should be retired if they consistently get bad customer review scores. This practice is yet another example of the negativity and hostile work environment they create. Call it ageist,...

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by kitplane01
Thu May 03, 2018 2:28 am
Forum: Technical/Operations
Topic: Cessna 172 Wings
Replies: 12
Views: 1552

Re: Cessna 172 Wings

If you're in level flight, the wings are level.

If you're flying straight, the choices are
- level wings
-OR-
- you have some yaw (rudder) and the wings are unlevel to compensate.

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by kitplane01
Tue May 01, 2018 5:08 pm
Forum: Civil Aviation
Topic: Post Office Contracting Air Freight (and Amazon)
Replies: 3
Views: 370

Post Office Contracting Air Freight (and Amazon)

I understand the US post office contracts flying from others. Do they buy whole flights, or just capacity? How many airplanes (or fractional airplane equivalents) do they use? Who do they contact from? Any most importantly ... is the USPS doing things the right way? I notice that Amazon has gone a d...

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by kitplane01
Tue May 01, 2018 5:02 pm
Forum: Civil Aviation
Topic: 10 Air France unions plans strike
Replies: 131
Views: 15482

Re: 10 Air France unions plans strike

Let's add this video I found with the Dutch perspective on the Air France pilots striking, again. (it's from April 24th) Youtube_RTLZ; Wat heeft KLM eigenlijk aan de Fransen? Niets! translation: What has France to offer to KLM? Nothing! I've enabled subtitles, you'll can change the settings for tra...

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by kitplane01
Tue May 01, 2018 4:54 pm
Forum: Civil Aviation
Topic: Emirates starts storing the A380
Replies: 124
Views: 36603

Re: Emirates starts storing the A380

Many of the A380's in and around the 10 year mark are going to incur excess hours penalties unless rested. Can you please explain this? I thought leases had a rate per hour (among other costs). Do extra hours cost more than earlier hours? And why would that make economic sense? I would have thought...

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by kitplane01
Tue May 01, 2018 5:56 am
Forum: Civil Aviation
Topic: Emirates starts storing the A380
Replies: 124
Views: 36603

Re: Emirates starts storing the A380

Many of the A380's in and around the 10 year mark are going to incur excess hours penalties unless rested. Can you please explain this? I thought leases had a rate per hour (among other costs). Do extra hours cost more than earlier hours? And why would that make economic sense? I would have thought...

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by kitplane01
Fri Apr 27, 2018 4:48 pm
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26405

Re: Airbus Cuts Production Plans for A330 Jet

Geoff1947 wrote:
SC430 wrote:
Boeing could well be delivering more Dreamliners per year than all (3) Airbus WB programs put together.


That’s very necessary for Boeing because the 787 is all they have as a passenger widebody for the next few years.

Geoff


I'm pretty sure the 777 line is still running.

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by kitplane01
Tue Apr 17, 2018 12:16 am
Forum: Civil Aviation
Topic: Global 7000 range better than expected at 7700 nm
Replies: 27
Views: 4054

Re: Global 7000 range better than expected at 7700 nm

How does the Global compare with the G-650? Anyone have a feel for which is the preferred platform going forward? The G650 is much more attractive, and probably has a better support network, and is produced by a company with a reputation for management success. But the Global 7000 stats look better....

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by kitplane01
Sat Apr 14, 2018 4:31 am
Forum: Civil Aviation
Topic: Air India Privatization, by June-decision?
Replies: 299
Views: 23942

Re: Air India Privatization, by June-decision?

So, here's a genuine question, what is the difference between Indian travellers and Chinese travellers China has a gdp per capita of about $8000. India is under $2000. (Wikipedia). China is closer to the US than India. I assume that the result is MANY more Chinese than Indians coming to the US. But...

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by kitplane01
Sat Apr 14, 2018 4:22 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

keesje wrote:
RJMAZ, if one would replace the 787 centerwingbox, wings, landing gear, engines


That’s a new plane.

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by kitplane01
Sat Apr 14, 2018 4:13 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

I think what you wrote is interesting. But if you were to reduce the take off weight of a 787 by 10%, that would imply a 10% reduction in takeoff thrust. I think every engine manufacturer would just do a paper derate. Are derated engines bad (besides the extra weight)? Do they use more fuel per pou...

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by kitplane01
Fri Apr 13, 2018 4:11 am
Forum: Civil Aviation
Topic: Airbus shelves A320neo-plus study
Replies: 278
Views: 32849

Re: Airbus shelves A320neo-plus study

So now we know that Boeing will not be doing the 797....Airbus inside sources have confirmed that Boeing cannot make a business case so it is pointless for Airbus to continue the study, the A321 will reign supreme for another 10 years or so while the MAX10 brings up the rear. Cool..... Option 1) Th...

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by kitplane01
Fri Apr 13, 2018 4:07 am
Forum: Civil Aviation
Topic: Air India Privatization, by June-decision?
Replies: 299
Views: 23942

Re: Air India Privatization, by June-decision?

Looks like the bid might be sweetened with a further 3,500 crore reduction in debt. http://www.financialexpress.com/infrastructure/airlines-aviation/air-india-sale-government-may-assume-more-liabilities/1130074/lite/ It is better to save the sale now than later. My opinion:. The sale is just too bi...

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by kitplane01
Fri Apr 13, 2018 3:52 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

Why do you think no one has ever done this? They could not see the profit? They didn't think of it? It comes down to engines. Engine thrust growth and small fuel efficiency improvement means that every family shifts to the right. With an even spread of aircraft 737/757/767/777/747 the smaller aircr...

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by kitplane01
Thu Apr 12, 2018 8:39 pm
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

[So again, can you find any time in the last 50 years that any commercial airliner did what you want: take an existing plane and remove 10%-20% of it's weight? I don't think it's happened, and to me that's evidence that it's really hard to do. The 777-200LR is heavier than the 777-200. The 777-200 ...

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by kitplane01
Thu Apr 12, 2018 7:54 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

They will have that time in any case, Airbus can´t sell more A320 familiy members, regardless of how good they make it. Even if they could magically lower trip costs by 5%, availability would still mean that the Max sales numbers won´t change, unless Airbus gets so bold to ramp up production well b...

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by kitplane01
Thu Apr 12, 2018 7:48 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

I'm just going to point out that the A300 and the A330 are very different airplanes. You could not start with either, make a few changes, and have the other. I'm guessing they have very few common parts. Actually the fuselage tube and tail are identical you've got upwards of 75+% commonality in the...

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by kitplane01
Tue Apr 10, 2018 11:30 pm
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

The 787-8 empty weight can easily be dropped from 120T to 110T and with a bit of extra cost and more unique optimised parts could probably hit 100T empty. A slightly shorter fuselage is also relatively easy. er. I might create a big post with a part by part breakdown of the optimisation process. If...

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by kitplane01
Tue Apr 10, 2018 11:21 pm
Forum: Civil Aviation
Topic: American Airlines orders 47 additional 787's (22 788's and 25 789's), cancels A350 order
Replies: 565
Views: 73961

Re: American Airlines orders 47 additional 787's (22 788's and 25 789's), cancels A350 order

You both seem to be assuming that fitting 787-9 components onto the -8 will add weight. But that's not obvious. The 787-9 was designed after the -8, and using the lessons learned from the -8. It could be the -9 parts are simply better (lighter weight, cost less, lower maintenance, etc.) I will agre...

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by kitplane01
Tue Apr 10, 2018 4:40 am
Forum: Technical/Operations
Topic: Propeller Question
Replies: 3
Views: 1279

Re: Propeller Question

The quick answer is called "minimum induced loss" - a fancy term for describing what type of mission the propeller is to perform. On a 172, with a minimally powered engine, the tapered ends allow a more evenly distributed elliptical distribution of the induce loss. Higher performance engi...

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by kitplane01
Tue Apr 10, 2018 4:29 am
Forum: Civil Aviation
Topic: Is Boeing outfoxing Airbus?
Replies: 114
Views: 20106

Re: Is Boeing outfoxing Airbus?

The 787-8 empty weight can easily be dropped from 120T to 110T and with a bit of extra cost and more unique optimised parts could probably hit 100T empty. A slightly shorter fuselage is also relatively easy. er. I might create a big post with a part by part breakdown of the optimisation process. If...

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by kitplane01
Tue Apr 10, 2018 4:25 am
Forum: Civil Aviation
Topic: American Airlines orders 47 additional 787's (22 788's and 25 789's), cancels A350 order
Replies: 565
Views: 73961

Re: American Airlines orders 47 additional 787's (22 788's and 25 789's), cancels A350 order

On another thread we have one member campaigning for an ultra-weight-reduced 787-8 to target the MoM space. Now we have a campaign for a heavier 787-8 to target the traditional carrier role. End result: I have a headache. I have noticed this too. There is a group of people on A.net that think the 7...

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by kitplane01
Mon Apr 09, 2018 6:02 am
Forum: Civil Aviation
Topic: American Airlines orders 47 additional 787's (22 788's and 25 789's), cancels A350 order
Replies: 565
Views: 73961

Re: AA ORDERS 47 787 FROM BOEING????

Strato2 wrote:
bigjku wrote:
The 8 is getting the 9’s tail.


That's only going to make the hole bigger for Boeing to dig themselves out. They truly need all these orders.


Why do you think this. The move was made to reduce construction costs, which sounds like a good thing to me.

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by kitplane01
Fri Apr 06, 2018 5:32 am
Forum: Civil Aviation
Topic: Air India Privatization, by June-decision?
Replies: 299
Views: 23942

Re: Air India Privatization by June-decision

... I cannot determine the business case for the current terms of AI. I do believe anyone can make a profit. ... The terms are poor and they walked away. Lightsaber I see you keep repeating "terms are poor" without any explanation. Care to explain? The 33,000Cr debt buyer gets along with ...

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by kitplane01
Wed Apr 04, 2018 5:04 pm
Forum: Civil Aviation
Topic: NetJets Fleet
Replies: 15
Views: 3129

Re: NetJets Fleet

As a photographer at one of NetJets hubs - PBI - I have numerous photos of their aircraft. Just take a look at PBI photos and you will see everything from their Gulfstreams and Challengers to their Sovereigns and Phenoms. What is a netjets hub? They don't have a regular route structure, and they do...

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by kitplane01
Wed Apr 04, 2018 3:25 am
Forum: Civil Aviation
Topic: A343 and A346 Status?
Replies: 50
Views: 7988

Re: A343 and A346 Status?

I don't think that the Airbus 340 is that less fuel efficient than many of todays aircraft. What a weird thing to write! Why do you think this thing? Everyone else thinks the A340 burns more fuel than the 777, it's only real competitor. Here is one source ... there are lots more. https://www.flight...

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by kitplane01
Wed Apr 04, 2018 3:13 am
Forum: Technical/Operations
Topic: GFRP vs CFRP
Replies: 17
Views: 2327

GFRP vs CFRP

lightsaber wrote:
Next generation:
1. GFRP wings (not CFRP).


Can someone comment on how much better GFRP is as an aircraft construction material than CFRP? Wikipedia does not help much.

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by kitplane01
Sun Mar 25, 2018 3:17 am
Forum: Travel, Polls & Preferences
Topic: 773ER vs A346 for private use (yes, another A340 post)
Replies: 11
Views: 1575

Re: 773ER vs A346 for private use (yes, another A340 post)

If I am hypothetically flying myself, then based on what I should do, I should get a 773ER instead of an A346. Because even though I love the A343 and A346: 1. They are gas guzzlers 2. They have 4 engines, which has its pros but also has increased maintenance costs 3. The Trent 500's are out of pro...

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by kitplane01
Sun Mar 18, 2018 5:41 am
Forum: Technical/Operations
Topic: Why so few high wing airliners?
Replies: 28
Views: 4210

Re: Why so few high wing airliners?

I don't know the aerodynamic reasons, but high wing planes tend to have great takeoff performance but are slow at cruise. Not sure why, but it appears to be true. I believe this is related to the wing-body join and air flow patterns on the wing. High wing aircraft have additional turbulence on the ...

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by kitplane01
Sun Mar 18, 2018 5:40 am
Forum: Technical/Operations
Topic: Why so few high wing airliners?
Replies: 28
Views: 4210

Re: Why so few high wing airliners?

This is something that I have wondered about. Maybe the question might be better expanded to avoid the A vs B debate. Why are the most popular short-haul turboprops often high wing if low wing is so much better? Q400 (and its predessors), and ATR are highwing. Is there a reason that on a turboprop ...

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by kitplane01
Sun Mar 18, 2018 5:34 am
Forum: Technical/Operations
Topic: Why so few high wing airliners?
Replies: 28
Views: 4210

Re: Why so few high wing airliners?

This is something that I have wondered about. Maybe the question might be better expanded to avoid the A vs B debate. Why are the most popular short-haul turboprops often high wing if low wing is so much better? Q400 (and its predessors), and ATR are highwing. Is there a reason that on a turboprop ...

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by kitplane01
Fri Mar 16, 2018 11:19 pm
Forum: Technical/Operations
Topic: Cargo Fuel Tanks and Software
Replies: 7
Views: 798

Re: Cargo Fuel Tanks and Software

Aux (lowerdeck) cargo fuel tanks can be added into an aircraft with a STC. In older (analoque) aircraft an additional aux fuel panel was added and integrated into the fuel system.(extra piping,wiring and pumps, if required.) The W&B was calculated with the additional fuel at one or more cargo p...

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by kitplane01
Fri Mar 16, 2018 5:57 am
Forum: Technical/Operations
Topic: Cargo Fuel Tanks and Software
Replies: 7
Views: 798

Cargo Fuel Tanks and Software

Lots of planes can carry fuel in extra tanks in the cargo bay. But how does that integrate with the software that flys the plane. Modern planes display endurance until empty and center of gravity. Does one get a software upgrade with the extra tankage?

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by kitplane01
Fri Mar 16, 2018 5:55 am
Forum: Technical/Operations
Topic: Next important technology?
Replies: 47
Views: 2782

Re: Next important technology?

The critical element for sizing jet engines isn’t take-off performance on the runway, it’s climb performance, specifically engine-out second segment performance and cruise thrust at optimum flight level at initial level-off after gross weight take-off. Adding electric motors for the roll would incr...

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by kitplane01
Wed Mar 14, 2018 6:04 pm
Forum: Civil Aviation
Topic: Textron launches Beech 1900-sized SkyCourier with FedEx order
Replies: 196
Views: 41071

Re: Textron launches Beech 1900-sized SkyCourier with FedEx order

Twelve 3D-printed parts replaces 855 parts: frames, combustor liners, sumps, exhaust case, bearing housings, stationary components in the flowpath, and heat exchangers. Overall weight is reduced by 5% and brake specific fuel consumption is improved by 1%. 3D printing is not used for rotating compon...

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by kitplane01
Tue Mar 13, 2018 11:23 pm
Forum: Civil Aviation
Topic: 10 Air France unions plans strike
Replies: 131
Views: 15482

Re: 10 Air France unions plans strike

Usually long haul flights were the least affected during strikes, however a court challenge has been lost so now AF can't do the same shuffling around of crews they were doing before. Can you explain this? The court has ordered certain pilots to crew particular aircraft, overriding the crew assignm...

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by kitplane01
Tue Mar 13, 2018 5:58 am
Forum: Technical/Operations
Topic: Turbofan engine Growth
Replies: 16
Views: 2359

Re: Turbofan engine Growth

When an engine is made smaller they can often do the opposite remove the first low pressure compressor stage to reduce the core size. You can see this on the E-175 and MRJ geared turbofans. Why would your prefer to remove the *first* low pressure compressor stage? I would think that by removing tha...

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by kitplane01
Mon Mar 12, 2018 5:12 pm
Forum: Civil Aviation
Topic: A380 at PHX or SJU, can it be done? How likely that it be done?
Replies: 12
Views: 2131

Re: A380 at PHX or SJU, can it be done? How likely that it be done?

I had a conversation a few years ago with a local PHX airport worker at my church, he told me we'd never see an A380 in PHX and then the Qantas flight came on a medical emergency so it's technically possible at least... He meant PHX would never see a scheduled A380, and he was right. PHX is equippe...

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by kitplane01
Sun Mar 11, 2018 4:47 am
Forum: Technical/Operations
Topic: Engine requirement criteria
Replies: 6
Views: 531

Re: Engine requirement criteria

Not absolutely sure what you are asking, but this thread may be helpful. https://www.pprune.org/tech-log/433331-thrust-selection-after-engine-failure-fire-takeoff.html More good stuff. https://www.pprune.org/tech-log/282945-calculating-thrust-altitude.html That was helpful. The pprune link says tha...

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by kitplane01
Sat Mar 10, 2018 11:51 pm
Forum: Technical/Operations
Topic: Engine requirement criteria
Replies: 6
Views: 531

Re: Engine requirement criteria

Wow. Lightsabre, I'm sure everything you said is true. However the poster, I believe, is just asking what thrust available requirements are the most stringent in a certified airliner. To me and stratclub, that would be the requirement to have enough thrust available on its remaining engines at a T/...

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