Search found 691 matches

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by RJMAZ
Fri Jun 15, 2018 10:33 am
Forum: Civil Aviation
Topic: Next A330 Neo orders....
Replies: 92
Views: 15377

Re: Next A330 Neo orders....

Quite a few of the A330NEO orders are to lease companies. Most dont have an airline to lease them to yet. There are quite a few small airlines with A330CEO's. I would expect these airlines to lease these A330NEO's that are already on order. So i dont expect significant orders in the short term. Most...

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by RJMAZ
Thu Jun 14, 2018 4:14 am
Forum: Civil Aviation
Topic: Order book and production rates for the 777 and 777x during and after the transition
Replies: 10
Views: 2191

Re: Order book and production rates for the 777 and 777x during and after the transition

In a previous thread quite a few members were saying the 777X production rate will be only 3.5 a month. So with the current order book we will see nearly 10 years of backlog at that low rate. These members also expect only a handful of new 777X orders in that 10 year period and the production rate w...

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by RJMAZ
Sun Jun 03, 2018 11:17 am
Forum: Civil Aviation
Topic: Airbus is considering A350-1000ULR
Replies: 77
Views: 18180

Re: Airbus is considering A350-1000ULR

Economics for these super ultra longhaul flights are iffy at best. I don't see them worsening the situation by adding heavy, non-revenue generating amenities. ^ This. An A350-1000 shrink down to A350-900 length would guarantee an order by Qantas. :checkmark: :checkmark: :checkmark: That's what I'm ...

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by RJMAZ
Sun Jun 03, 2018 5:56 am
Forum: Civil Aviation
Topic: Airbus is considering A350-1000ULR
Replies: 77
Views: 18180

Re: Airbus is considering A350-1000ULR

Airbus is scrambling because the A350 can't do Sydney to London. The stock standard first production A350-900 could do SYD-LHR nonstop, the question always has been is the payload capability over that range economic, the improvements are centered around improving the payload over the range. As for ...

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by RJMAZ
Sun Jun 03, 2018 4:48 am
Forum: Civil Aviation
Topic: Airbus is considering A350-1000ULR
Replies: 77
Views: 18180

Re: Airbus is considering A350-1000ULR

Long range aircraft need a big wing and a high lift to drag ratio. Adding fuel is not an efficient solution. The A350-1000ULH would be worse than the A350-900ULH Airbus is scrambling because the A350 can't do Sydney to London. The A350-900 needs a Maximum takeoff increase, an additional engine PiP, ...

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by RJMAZ
Mon May 28, 2018 4:38 am
Forum: Civil Aviation
Topic: Why were the 757 and 767 such dead-end designs?
Replies: 109
Views: 16520

Re: Why were the 757 and 767 such dead-end designs?

Did you want to back this up with gals/pax-mile or lbs/pax-mile on a typical route? Compared to say a 767 of its time? Empty weight per passenger is the best metric to compare short haul CASM. Let's compare all three at 28" pitch full economy. 737-900ER - 44600kg 215 passengers = 206kg per pas...

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by RJMAZ
Mon May 28, 2018 2:56 am
Forum: Civil Aviation
Topic: Why were the 757 and 767 such dead-end designs?
Replies: 109
Views: 16520

Re: Why were the 757 and 767 such dead-end designs?

The 753 was the most-efficient aircraft per pax of its time. Wider means less-aerodynamically-efficient, and two aisles means the thing has to be wider to accomodate the pax. I really don't follow your logic, unless you're saying that pax don't like an aircraft to be that long. I disagree. The 757-...

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by RJMAZ
Sun May 27, 2018 10:19 pm
Forum: Civil Aviation
Topic: Why were the 757 and 767 such dead-end designs?
Replies: 109
Views: 16520

Re: Why were the 757 and 767 such dead-end designs?

The sharp market downturn after 9/11 had a massive effect on the 757-300 and probably the 767-400. The 757-300 is also structurally inefficient due to being too long and skinny. It is at the capacity where you shouldn't really have an aircraft. Between 250 and 300 seat range in max density it is too...

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by RJMAZ
Sun May 27, 2018 2:16 pm
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

I see no consideration of opportunity cost. Had Airbus offered an improved A300/A310, it would have come at the cost of something. Given that the best available short/mid-range widebody through the 2000s was the A330, it's probable that an improved A300/A310 would have simply cannibalized an A330 s...

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by RJMAZ
Sun May 27, 2018 6:21 am
Forum: Civil Aviation
Topic: Prelude to Middle East hubs losing clout as super connector in the wake of growing nonstop links bypassing them?
Replies: 64
Views: 9104

Re: Prelude to Middle East hubs losing clout as super connector in the wake of growing nonstop links bypassing them?

A hub is a hub is a hub. Every destination EK or any other of the ME3 is serving in Europe has already air links to other hubs. So I wouldn’t argue it’s here to stay just because it’s a hub. In terms of cities served, the networks of the ME3 are not even that diverse. If you want to go to smaller c...

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by RJMAZ
Sun May 27, 2018 6:11 am
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

Was the 310 really a distinct model or was it a 300 variant? How many changes are required for it to be a distinct model? The A300, A310, A330, A340 and A330NEO all share the same fuselage tube. The fuselage extensions were inserted closest to the wing and these were stronger to handle the load inc...

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by RJMAZ
Sat May 26, 2018 4:59 pm
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

Sales/ Orders of passenger A300/310 had dropped before 1995 and Airbus was looking at reviving those sales. That's because the A330-300 came out with newer tech engines, supercritical wing and larger size which helps CASM. If the A300 had a smaller supercritical wing and equal tech engines like the...

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by RJMAZ
Sat May 26, 2018 1:29 pm
Forum: Civil Aviation
Topic: Prelude to Middle East hubs losing clout as super connector in the wake of growing nonstop links bypassing them?
Replies: 64
Views: 9104

Re: Prelude to Middle East hubs losing clout as super connector in the wake of growing nonstop links bypassing them?

Most people miss the biggest advantages of hubs. The best way to explain it is as follows. Let's say you had 6 cities in Asia and 6 cities in Europe. So 12 destinations operating out of a mega hub in the middle East. You only need 12 aircraft to operate daily flights. You can travel between any of t...

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by RJMAZ
Sat May 26, 2018 12:39 pm
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

I bring up the A300NEO in this thread as it would technically be a stretch of the A310 with new engines. It may have been called the A310-800 or A310-900. Mixing up things. The A310 and the A300 had different sized wings, wings adjusted to their different MTOW. The A310 was not a simple shrink of t...

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by RJMAZ
Sat May 26, 2018 3:53 am
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

The A310's superior lighter wing and slightly lighter landing gear could have been fitted to the A300 with a newer engine such as the Trent 1500. This was a proposed development of the Trent 500 used on the A340-500. It no doubt would have sold well after the market recovered following 9/11. That's...

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by RJMAZ
Fri May 25, 2018 11:26 am
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

agree, are there the right engines around for it? I guess the barrel is the same of the a330 so only the wings / and materials should be re-designed. I'm sure AB has a secret drawer with tons of projects and one has a a310/a300neo name on it :) It is quite unfortunate that Airbus didn't keep an air...

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by RJMAZ
Fri May 25, 2018 10:01 am
Forum: Civil Aviation
Topic: A310 - too early?
Replies: 72
Views: 13154

Re: A310 - too early?

The global airline market is 4 times bigger now than when the A310 launched. The 250-350 seat max economy market was also highly contested with multiple aircraft. The 752, 753, A310, 762, 763 A300 and 763ER were all evenly spaced. For the A310 to sell 255 aircraft is brilliant. If an A310NEO was on ...

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by RJMAZ
Thu May 17, 2018 11:38 pm
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

I'll try explain further how pavement rating works. Total aircraft weight plays a very big part, so the 787-10 rating is OK in this regard. Here are the ratings on different surfaces. Notice how the A350-1000 has a much lower rating at the start but ends up being higher. On a rigid high strength pav...

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by RJMAZ
Thu May 17, 2018 1:26 pm
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

I’d like to know how you came to the conclusion that the 787-10 would need a completely new gear if MTOW was increased. Do you know exactly what the pavement loading is for the 787-10? Do you know what the tire diameter and width is? Or is your opinion based on assumptions and anecdote? Actually th...

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by RJMAZ
Tue May 15, 2018 7:15 am
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

You can put 440 passengers in a A330-900 and you can put 440 passengers in a 787-10, that are maximum numbers. As pointed out they are theoretical maximum numbers and don't apply to the 1000+ aircraft in service. It is irrelevant and It only applies to a handful of aircraft. Airbus could fit a doze...

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by RJMAZ
Mon May 14, 2018 12:31 pm
Forum: Civil Aviation
Topic: Theoretical 777-based replacement for 747?
Replies: 178
Views: 21595

Re: Theoretical 777-based replacement for 747?

Looking back the limiting factor of the 777-9 isn't really a lack of cabin area. If the goal of the 777-10 is to create a high capacity medium haul monster similar to the 787-10 then a stretch to 80m would be all that is required. There would be a huge amount of underfloor space to relocate all toi...

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by RJMAZ
Mon May 14, 2018 11:21 am
Forum: Civil Aviation
Topic: Theoretical 777-based replacement for 747?
Replies: 178
Views: 21595

Re: Theoretical 777-based replacement for 747?

Looking back the limiting factor of the 777-9 isn't really a lack of cabin area. If the goal of the 777-10 is to create a high capacity medium haul monster similar to the 787-10 then a stretch to 80m would be all that is required. There would be a huge amount of underfloor space to relocate all toil...

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by RJMAZ
Sun May 13, 2018 1:24 am
Forum: Technical/Operations
Topic: Weight Differential 787 vs 777X
Replies: 6
Views: 1834

Re: Weight Differential 787 vs 777X

Composites provide a big advantage when it comes to wings but only a small advantage when it comes to the fuselage. The aluminium lithium alloy narrows that advantage when it comes to the fuselage. So with the 777X wings already in composite i could only be maybe 5% lighter if it used all composite....

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by RJMAZ
Sun May 13, 2018 12:54 am
Forum: Technical/Operations
Topic: Could regional aircraft be more like buses?
Replies: 18
Views: 1705

Re: Could regional aircraft be more like buses?

This will happen in 50 years time with full electric VTOL vehicles. We already have electric drones. Once battery density increases by 5 times you could simply scale up the design to fit passengers. You would want a tilt wing design with multiple electric motors so it can have 500+km/h cruising spee...

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by RJMAZ
Sun May 13, 2018 12:09 am
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

The 787-10 / 777-8 will simply have a hard time against the A350-900 and -1000 in the 77W replacement market. I'm not of the 787-9 "small is fine" believers in a growing markets. I just don't see airlines downscaling from the 772ER from Asia for the next 20 years. Airlines can and will up...

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by RJMAZ
Sat May 12, 2018 1:04 pm
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

Simple stretches like the 787-10 trade maximum range for improved efficiency at short ranges. It allows you to cover more of the market. Increasing maximum takeoff weight in a family as the aircraft get larger will usually keep the range and efficiency of each model fairly close. For example you cou...

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by RJMAZ
Sat May 12, 2018 4:45 am
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

A 787 empty weight "reduction" along with keeping the MTOW the same would be a better fit for the 787. That, and engine improvements would make the 787-10 even more compelling...longer range, more cargo. I'm sure after seven years in service, where and how weight could be shaved is now kn...

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by RJMAZ
Sat May 12, 2018 4:37 am
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

the 787-10 will become a 7000+nm range aircraft and the 787-9 will become a 8000+mm aircraft. I guess you meant 8000nm+ aircraft, not an 8-meter aircraft :D Joking aside, isn't 787-9 already a 8000nm ULR aircraft, given it is used on LAX-SIN? That's wikipedia range. Most manufacturers list the rang...

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by RJMAZ
Sat May 12, 2018 2:41 am
Forum: Civil Aviation
Topic: a MTOW increase on 787-10 to compete with A359?
Replies: 187
Views: 22495

Re: a MTOW increase on 787-10 to compete with A359?

787 MLG are currently maxed out at current MTOW. I think there is still room with the wing. I agree with both assessments. I believe the tires are also maxed out too. It is non-trivial to upgrade at this point. I'm thinking it might not be worth the effort. Lightsaber Actually the landing gear is r...

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by RJMAZ
Thu May 10, 2018 12:52 pm
Forum: Technical/Operations
Topic: ACTs - A321
Replies: 12
Views: 1586

Re: ACTs - A321

Yup it may be that the 97T max weight limit is exceeded at that point (4acts). I have always wondered what the maximum (for a 'standard' runway) pavement loading is for a single bogey aircraft.If it was 4 wheels at 100t all up then I suppose it would be 25T but I don't suppose it's that simpler cal...

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by RJMAZ
Mon May 07, 2018 9:56 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

Not even top 20? Come on RJMAZ, that’s a bit too much :D I know it's fat and some folks think it ain't pretty, but it still got a great CASM for a wide body. If you look at A380plus, it's got the one of the best CASM for any widebody, so its cabin area over weight can't be that bad. I know you are ...

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by RJMAZ
Sun May 06, 2018 2:11 pm
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

I saw a few sources online, and they all were around the same figure of 580m^2. One of them you can find in this link: http://www.aircharterservice.cd/aircraft-guide/group/airbus-europe/airbusa380 Their figures would give a total cabin area of 595m2, but as a wild guess, it would drop a bit due to ...

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by RJMAZ
Sun May 06, 2018 8:47 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

I've flown in Y on both. 787: frankly uncomfortable. 330: absolutely hideous. From here in Oz it is hard to avoid AirAsiaX, as they have a great network, good schedule & cheap fares. However just one experience of a longish night-flight was enough for me forever. Now I will go as long as: - it ...

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by RJMAZ
Sat May 05, 2018 2:58 am
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26649

Re: Airbus Cuts Production Plans for A330 Jet

Please move discussion of the 777X to another thread. Further off topic posts will be deleted. Comparing the ramp up between the A330NEO and 777X is not off topic. As both aircraft models are being compared it could equally be in the 777X thread and the A330NEO thread. Considering this one is about...

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by RJMAZ
Sat May 05, 2018 2:46 am
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26649

Re: Airbus Cuts Production Plans for A330 Jet

Its not like classic is not in production. Of course, I see the production can be dragged down by composite wing, but isn't the biggest driving factor is the classic can't pick up sales instead of wings not ready for X? Unless you are expecting they are going to deliver X this year ......... All th...

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by RJMAZ
Sat May 05, 2018 2:28 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

Well, other frames do not use 100% of their cabin areas either. How did you get the 545 figure? Other frames don't need stairs at either end of the aircraft taking up space on both decks. How did you get your 580m2 figure? There has been so many discussions on the A380-850/900 models and not once h...

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by RJMAZ
Sat May 05, 2018 1:01 am
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26649

Re: Airbus Cuts Production Plans for A330 Jet

I don't understand a production line was capable of running at 8.3 per month has to slow down by more than half down to 3.5 ........... . The 777x has a brand new carbon wing that will actually be built at Boeing. They had to get the world's largest autoclave built for them. You expect them to star...

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by RJMAZ
Fri May 04, 2018 11:11 pm
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26649

Re: Airbus Cuts Production Plans for A330 Jet

1. A330neo has new composite upper belly fairing, new winglets, new flap track fairing, new slats, and new wing twist. Firstly, these are all minor improvements and have been done on other aircraft in the past without a reduction in production rate. Secondly, most of the improved NEO parts and aero...

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by RJMAZ
Fri May 04, 2018 11:01 am
Forum: Civil Aviation
Topic: Airbus Cuts Production Plans for A330 Jet
Replies: 229
Views: 26649

Re: Airbus Cuts Production Plans for A330 Jet

I can't believe Airbus fanboys are trying to compare the 777 production cuts to the A330NEO production cuts. The A330NEO only has new engines, there should be minimal disruption on the assembly line. At most you might produce a couple less aircraft for a month or two. The 777X has a brand new wing, ...

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by RJMAZ
Fri May 04, 2018 4:38 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

I don't think they have the engines to do a A322 simple stretch of the A321LR. When you stretch an aircraft you require additional thrust. Even if you keep the maximum takeoff weight the same you need additional thrust to cover the extra surface drag of the longer fuselage. In most cases the engines...

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by RJMAZ
Thu May 03, 2018 2:16 pm
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

Well, we have two posters here who work for different A350 operators, one of them confirmed that their A350 has OEW of 135t, and the other one has it at 136t. With the recent revealed numbers for 787-10, I would say they weigh about the same. I originally said the 787-10 has a much higher cabin are...

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by RJMAZ
Thu May 03, 2018 10:22 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

So, 787-10 has cabin area that is bigger by 0.7%, are those number alright? The 787-10 has a cabin area that is 4.5% bigger Back calculating the A350's payload range chart from has the A350-900 weighing 1-3T more. So the 787-10 has the highest cabin area to weight ratio of any widebody in productio...

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by RJMAZ
Wed May 02, 2018 4:41 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

Both planes are struggling to get orders because, IMJ, they don't offer compelling capacity/efficiency tradeoffs. It would be worth creating a capacity Vs efficiency graph. Use a standard seating density with equal area per passenger and work out fuel burn or CASM for all in productiin passenger ai...

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by RJMAZ
Tue May 01, 2018 10:36 pm
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

A 280t MTOW A350-1000 "lite" on the double bogie MLG might be an interesting proposition - a sort of 787-10 on steroids :) When determining landing gear size it is a combination of maximum takeoff weight and maximum landing weight. The A350-1000 lite would still have a minimum landing wei...

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by RJMAZ
Tue May 01, 2018 10:12 pm
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

Both planes are struggling to get orders because, IMJ, they don't offer compelling capacity/efficiency tradeoffs. It would be worth creating a capacity Vs efficiency graph. Use a standard seating density with equal area per passenger and work out fuel burn or CASM for all in productiin passenger ai...

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by RJMAZ
Tue May 01, 2018 3:26 pm
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

I'd expect this to be Airbus's reply to Boeings MOM. Is the market earning potential big enough to justify 2 dedicated programs? [i.e. profit per airframe sold] I'm not even sure if its big enough to justify one dedicated program! It depends. I expect the A330NEO to go down the same path as the 767...

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by RJMAZ
Tue May 01, 2018 11:57 am
Forum: Civil Aviation
Topic: AIRBUS 2020-2030 development projects A360, A370 opportunities.
Replies: 289
Views: 48197

Re: AIRBUS 2020-2030 development projects A360, A370 opportunities.

As I have mentioned previously I expect the A330 fuselage cockpit and tail to live on for one last aircraft. As most of us know the A300/A310/A330/A340 fuselages are nearly identical front and rear with just different middle sections. I expect an A300 length fuselage and weight class, but with newer...

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by RJMAZ
Tue May 01, 2018 2:18 am
Forum: Civil Aviation
Topic: Concorde: the substitute
Replies: 56
Views: 5955

Re: Concorde: the substitute

We have had a lot of advancements in aerodynamics and materials. In 20 years time we will definitely have 50 seat all business class aircraft flying mach 2. We could build an aircraft with the same number of seats as the concord and it would probably weigh 75% of the weight and burn 50% of the fuel....

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by RJMAZ
Sun Apr 29, 2018 4:25 am
Forum: Civil Aviation
Topic: AirAsia X won't buy "too expensive" Airbus A350: Tony Fernandes
Replies: 301
Views: 39469

Re: AirAsia X won't buy "too expensive" Airbus A350: Tony Fernandes

Airport fees are based upon MTOW not empty weight, we already operate A330 at multiple MTOWs, sure other airlines do as well. Thanks for pointing out of the obvious. Reducing the maximum takeoff weight does not improve efficiency. If you reduce the empty weight by 5T or 4% and fill it with the same...

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by RJMAZ
Sun Apr 29, 2018 12:43 am
Forum: Civil Aviation
Topic: AirAsia X won't buy "too expensive" Airbus A350: Tony Fernandes
Replies: 301
Views: 39469

Re: AirAsia X won't buy "too expensive" Airbus A350: Tony Fernandes

Well put. the A330ceo has been a brilliant performer for EU/US carriers, and in retrospect, its mostly because they've matched the range/capacity of the aircraft to their routes very nicely. given the changes in markets, technology and competition, it is hard to understand AB's direction with the A...

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