Search found 94 matches

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by SteinarN
Fri Aug 24, 2018 12:30 pm
Forum: Civil Aviation
Topic: Which Frame Will Be More Efficient....The A35J or the 779?
Replies: 299
Views: 29863

Re: Which Frame Will Be More Efficient....The A35J or the 779?

I have not seen much mentioning of the effect of wing thickness on the wing weight. Clearly a thick wing, especially thickness inboard or closer to the fuselage, will make for a lighter wing when keeping the other geometric parameters constant. Ofc, you cant add thickness as you wish as it (hugely)...

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by SteinarN
Fri Aug 24, 2018 10:10 am
Forum: Civil Aviation
Topic: Which Frame Will Be More Efficient....The A35J or the 779?
Replies: 299
Views: 29863

Re: Which Frame Will Be More Efficient....The A35J or the 779?

I have not seen much mentioning of the effect of wing thickness on the wing weight. Clearly a thick wing, especially thickness inboard or closer to the fuselage, will make for a lighter wing when keeping the other geometric parameters constant. Ofc, you cant add thickness as you wish as it (hugely) ...

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by SteinarN
Sat Aug 04, 2018 10:28 am
Forum: Civil Aviation
Topic: Hi Fly A380 operations thread 2018
Replies: 280
Views: 36425

Re: Hi Fly A380 operations thread 2018

In a way its serving as a bit of an experiment to see what an A380 can do as an LCC or ULCC. I find the concept of Premium seating without Premium service to be intriguing. Agreed. Although I think a higher density 2nd generation A380 would really be a gamechanger in that regard. Yes, this plane is...

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by SteinarN
Sat Aug 04, 2018 7:19 am
Forum: Civil Aviation
Topic: Hi Fly A380 operations thread 2018
Replies: 280
Views: 36425

Re: A Hifly Airbus 380 landed on OSL today

Ok. I did it. I went for it and booked a Premium Flex ticket departing 8/5 and returning 8/9. It priced out to $1775 r/t. a quick google search shows that is what almost everyone else is charging in economy besides Norwegian and Wow. It shows as Operated by Hi Fly on both segments. The red eye from...

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by SteinarN
Thu Aug 02, 2018 5:37 pm
Forum: Civil Aviation
Topic: Hi Fly A380 operations thread 2018
Replies: 280
Views: 36425

Re: HiFly takes delivery of first A380

As this is the only A380 flying between London and JFK, a huge OD city pair, I am sure it will be a huge success. But I admit, I hadnt believed it was Norwegian who was the customer. I wonder, if it will be a huge success, and Norwegian gets one more from HiFly, what will BA do then? Or the American...

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by SteinarN
Sun Jul 22, 2018 8:52 am
Forum: Civil Aviation
Topic: C47 Crash in Texas
Replies: 32
Views: 7208

Re: C47 Crash in Texas

Was it going at high enough speed when the main gear lifted up from ground? The tail gear was still on the ground, and it seems like it was going slowly. If you don't have wings in horizontal position (tail gear off the ground) wouldn't the angle of attack cause an early liftoff, perhaps with not e...

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by SteinarN
Sat Jul 21, 2018 7:59 pm
Forum: Civil Aviation
Topic: C47 Crash in Texas
Replies: 32
Views: 7208

Re: C47 Crash in Texas

I saw the cell phone video. This is a tail dragging plane, if that is the correct expression. That is the tail wheel is the steering wheel and the tail sits very low to the ground when on the wheels. When taking off with such a plane you need to get the tail liftet off of the runway well before you ...

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by SteinarN
Sun Jul 15, 2018 6:18 pm
Forum: Civil Aviation
Topic: JetBlue Orders 60 Airbus A220-300
Replies: 354
Views: 47761

Re: JetBlue Orders 60 Airbus A220-300

Revelation wrote:
So it sounds like DL is using A220 as hub feeder (cheap dongle) whereas B6 has it in roles that need reliable tcon range (expensive dongle).


I really like how aircrafts now have come down to which dongle version they are :)

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by SteinarN
Thu Apr 05, 2018 3:32 pm
Forum: Civil Aviation
Topic: Confirmed: HiFly adding second hand A380s
Replies: 113
Views: 30527

Re: HiFly adding second hand A380s?

The capital cost/lease for the aircraft is most likely very low all the time they dont have the cabin refurbished. If they get good utilization of the aircraft I will dare to say they can make fairly good money on it. On a side note, finally those unlucky Norwegian long haul passengers can get the e...

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by SteinarN
Fri Mar 09, 2018 12:55 am
Forum: Civil Aviation
Topic: Boeing 787 suffers nose gear collapse
Replies: 47
Views: 61932

Re: Boeing 787 suffers nose gear collapse

What is or was the plan for this aircraft? Was it going to be delivered to a customer, or was it just sitting on Boeings hand?

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by SteinarN
Tue Mar 06, 2018 5:33 pm
Forum: Civil Aviation
Topic: Airbus Is in Talks With British Airways on More A380s
Replies: 561
Views: 101597

Re: Airbus Is in Talks With British Airways on More A380s

Walsh has been talking about the A380 today, In Flightglobal: https://www.flightglobal.com/news/articles/more-a380s-of-interest-to-iag-but-prices-ridiculou-446484/ "We're not negotiating – we've said very clearly to Airbus, if they want to sell A380s they need to be aggressive on pricing."...

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by SteinarN
Thu Feb 15, 2018 7:37 am
Forum: Civil Aviation
Topic: Large Q4 and 2017 loss for Norwegian
Replies: 0
Views: 537

Large Q4 and 2017 loss for Norwegian

Norwegian today announced a loss of US$180 million for Q4, double the loss expected by the analysts. For full year 2017 the loss was US$ 138 million. Article in Norwegian only https://www.dn.no/nyheter/2018/02/15/0701/Luftfart/milliardunderskudd-for-norwegian Google translate: The Norwegian airline ...

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by SteinarN
Tue Feb 13, 2018 7:48 pm
Forum: Civil Aviation
Topic: A321 NEO LR LBG - JFK Flight Tracker
Replies: 59
Views: 11612

Re: A321 NEO LR CDG - JFK Flight Tracker

Interestingly enough, when facing head winds the optimum true airspeed for max range/lowest fuel consumption per distance does in fact increase. And the reverse when facing tail wind. Say max range cruise speed is mach 0,78 in still air. When facing severe head wind the maximum range true airspeed g...

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by SteinarN
Fri Jan 26, 2018 7:58 pm
Forum: Civil Aviation
Topic: Bombardier Wins C-Series Case at ITC
Replies: 359
Views: 41923

Re: Bombardier Wins C-Series Case at ITC

Wow! Absolutely fantastic news. My faith in fair competition based on products and performance is greatly restored when reading this.

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by SteinarN
Mon Jan 22, 2018 9:38 pm
Forum: Civil Aviation
Topic: Airbus A350 Production/Delivery Thread 2018
Replies: 1450
Views: 511739

Re: Airbus A350 Production/Delivery Thread 2018

The finnished carbon/resin composite would weight something around 1,4 kg/mm/sqmtr. So a 1,1 kg/sqmtr would be about 0,8mm thick. But you are probably correct that this is way too much for one single unidirectional layer. But a 0,1mm thick layer is only about 100 grams/sqmtr or less of carbon, that ...

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by SteinarN
Mon Jan 22, 2018 8:09 pm
Forum: Civil Aviation
Topic: Airbus A350 Production/Delivery Thread 2018
Replies: 1450
Views: 511739

Re: Airbus A350 Production/Delivery Thread 2018

Lighter wing (1 less carbon layer on both upper and bottom side of the wing) Any idea how much weight saving that constitutes? same for the new doorframing. Napkin calculation... Carbon fiber, 300 grams/sqmtr, resin for this layer is about 250 grams, so, 550 grams/sqmtr. Double this for both top an...

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by SteinarN
Mon Oct 23, 2017 8:38 pm
Forum: Civil Aviation
Topic: Boeing 777X - Updated Information And Developments
Replies: 2650
Views: 256386

Re: Boeing 777X - Updated Information And Developments

https://twitter.com/AirlineReporter/sta ... 2990679040


Hmmm, I cant see any wing spar or part of it, just production equipment. Or am I blind?
-->

KarelXWB wrote:
The first wing spar has gone into production.

Image
https://twitter.com/AirlineReporter/sta ... 2990679040


Hmmm, I cant see any wing spar or part of it, just production equipment. Or am I blind?

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by SteinarN
Fri Sep 08, 2017 11:40 am
Forum: Civil Aviation
Topic: Future of 777X
Replies: 395
Views: 40761

Re: Future of 777X

In the long run, what's worse for Boeing is that the 779's advantage is ephemeral in that it relies, to great extent, on better engines. I expect Boeing to reengine the 787 sooner than currently imagined - perhaps as early as 2025 with Ultrafan - and I expect Airbus to match that move. When that ha...

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by SteinarN
Tue Aug 22, 2017 1:18 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

I didnt mean Qatar in any way is/was reasonable, because I dont think they have been that. But when we are talking about what frames should actually end up not beeing delivered, objectively it is more reasonable to not deliver not yet built frames than to not deliver already built and equipped frames.

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by SteinarN
Tue Aug 22, 2017 12:15 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

That's why we have seen activity on MSN 63 recently. Aircraft came suddenly out of storage. And so QR doesn't need to increase its order book to re-take the 4 canceled aircraft. Just cancel 4 aircraft further down the road. Sounds reasonable. I notice MSN 161, 163 and 172 for Quatar have still not ...

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by SteinarN
Sat Jun 17, 2017 5:18 pm
Forum: Civil Aviation
Topic: Airbus is examining 'A380-Plus'
Replies: 1034
Views: 193254

Re: Airbus is examining 'A380-Plus'

Indeed, the vertical height seems to be slightly less than the fan diameter, and that is what, 1,9 mtr, or only about 5,5 ft. If we add the small winglet on the underside we reach maybe 8-9 ft. The fan diameter of the GP7000 is much bigger than 1.9m. It is 3.16m (10.4 ft; 124 in). In my view the wi...

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by SteinarN
Sat Jun 17, 2017 4:51 pm
Forum: Civil Aviation
Topic: Airbus is examining 'A380-Plus'
Replies: 1034
Views: 193254

Re: Airbus is examining 'A380-Plus'

Karel,
nope, I still get a hight slightly less than the fan diameter, even in the latest picture. And the downward pointing one is just tiny. I am disappointed. I can not belive this is the best Airbus could do. I want an at least 5mtr/15ft high skarklet!

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by SteinarN
Sat Jun 17, 2017 2:30 pm
Forum: Civil Aviation
Topic: Airbus is examining 'A380-Plus'
Replies: 1034
Views: 193254

Re: Airbus is examining 'A380-Plus'

Indeed, the vertical height seems to be slightly less than the fan diameter, and that is what, 1,9 mtr, or only about 5,5 ft. If we add the small winglet on the underside we reach maybe 8-9 ft.

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by SteinarN
Fri Jun 09, 2017 8:49 pm
Forum: Civil Aviation
Topic: Airbus is examining 'A380-Plus'
Replies: 1034
Views: 193254

Re: Airbus is examining 'A380-Plus'

Finally! I have never understood why Airbus have been so slow in implementing large winglets on the A380. This should have been done years ago. But better late than never. It is almost like I can have some faith in this combined effort, slightly better RR engines, around ten percent more passengers ...

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by SteinarN
Sat May 27, 2017 8:27 pm
Forum: Civil Aviation
Topic: BA experiencing computer problems.
Replies: 200
Views: 28489

Re: BA experiencing computer problems.

moo, did RBS rehire their old it staff after this debacle?

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by SteinarN
Sat May 27, 2017 10:12 am
Forum: Civil Aviation
Topic: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop
Replies: 897
Views: 185279

Re: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop

Prevailing winds, at altitude, in Norway are of the South/Southwest? Gemuser To be honest, I dont know about at altitude. But at ground level the winds are definitely coming from south west/west more than any other direction. Especially at autumn/winter time we have a lot of south west/westerly win...

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by SteinarN
Sat May 27, 2017 7:40 am
Forum: Civil Aviation
Topic: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop
Replies: 897
Views: 185279

Re: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop

Hmm, I dont know what to say about that route. I see it skims the cost of norway. In that area the prevailing winds will definitely be headwinds. I live there so I know. I would go as far as to say that the prevailing winds all the way from the kink on the northern siberian coast and all the way to ...

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by SteinarN
Fri May 26, 2017 6:13 pm
Forum: Civil Aviation
Topic: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop
Replies: 897
Views: 185279

Re: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop

[quote="SteinarN ] How many nm will the ground distance be eastbound? And what is the required average tailwind so as to make the air distance shorter than the westbound route at about 10.000nm?[/quote] Eastbound it is ~9800nm. Assuming a average positive tail wind of ~ 20k the ESAD would be 9...

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by SteinarN
Fri May 26, 2017 1:14 pm
Forum: Civil Aviation
Topic: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop
Replies: 897
Views: 185279

Re: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop

So, we see that if about 10.000nm air range is required going west against the prevailing winds then 300 passengers is clearly out of the question for either plane. Even 200 passengers seems to be a stretch but if any plane can do that is must be the B778. But the route will not be flown westbound,...

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by SteinarN
Fri May 26, 2017 12:23 pm
Forum: Civil Aviation
Topic: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop
Replies: 897
Views: 185279

Re: Qantas considering 777-8 or A359ULR to replace 744ER's to fly SYD-JFK and SYD-LHR non-stop

Acording to Leeham; The A359ULR can trade passengers for fuel all the way down to 75 passengers. Then the tanks are full and the range is 10.400nm. The B778 can trade passengers for fuel all the way down to 160 passengers. The tanks are then full and the range is the same as A359ULR, namely 10.400nm...

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by SteinarN
Sun Feb 12, 2017 11:50 am
Forum: Civil Aviation
Topic: Boeing expects $70M profit per a 787 frame in the future orders
Replies: 117
Views: 14362

Re: Boeing expects $70M profit per a 787 frame in the future orders

To make some simple math. Boeing expects to produce 140 787's a year for a total profit (which I assumes is about the same as free cash flow and not booked profit) of 70 million times 140 copies a year for a grand total of 9.8B US$. This for one single wide body program. This seems totally in break ...

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by SteinarN
Wed Feb 01, 2017 7:02 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

That also relates to the relevant firing rate at the time they were loaded from what I see. It also looks like the firing rate has increased again but difficult to tell. Pre-assembly is clearly running at 6 per month now. Spirit AeroSystems delivered 19 A350 ship sets in Q4 2016. https://imagr.eu/u...

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by SteinarN
Thu Jan 12, 2017 8:01 pm
Forum: Civil Aviation
Topic: How far away is the commercial airline industry from adopting BWB designs?
Replies: 28
Views: 6373

Re: How far away is the commercial airline industry from adopting BWB designs?

And how are you going to do the pressurization? It is easy to pressurize a tube but a more flat/oval structure needs much more strenghtening to sustain any pressurization, which adds a lot of weight.

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by SteinarN
Sun Jan 01, 2017 3:10 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

They could always "fudge it" to 50 by including "delivery" of the first 350-1000 to their flight test department :) Yes, I suppose they could! Next thing we see is Boeing moving their 777 "blank rounds" through the FAL to a blank customer and then counting those as suc...

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by SteinarN
Fri Dec 23, 2016 6:51 pm
Forum: Civil Aviation
Topic: Airbus A330neo production and delivery thread - 2016-2017
Replies: 759
Views: 235408

Re: A330 NEO Production And Delivery Thread Part 1

journeyperson wrote:

It looks a bit bad tempered from that angle. Maybe not happy about having to wait for its engines.


It definitely looks angry, very angry.

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by SteinarN
Thu Dec 22, 2016 9:27 pm
Forum: Civil Aviation
Topic: A380 Production Thread Part 19
Replies: 1486
Views: 193897

Re: A380 Production Thread Part 19

What would happen if say one Airline offered two, maybe three departures daily on a super efficient 750-800 seat SuperNeo between LHR and JKF at 75% of the price any other airline could fly semi profitably for? The other airlines flying other types of aircraft would reduce their prices to the new l...

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by SteinarN
Wed Dec 21, 2016 2:15 pm
Forum: Civil Aviation
Topic: 727 Aerosucre is down
Replies: 155
Views: 226836

Re: 727 Aerosucre is down

I was thinking the same thing - however we must keep an open mind here. If there was any sort of hydraulic failure, it's more than possible that the slats on one wing had retracted, asymmetrically. Lucking she's a T-tail or there almost certainly would have been some control loss on the hstab. You'...

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by SteinarN
Wed Dec 21, 2016 7:29 am
Forum: Civil Aviation
Topic: A380 Production Thread Part 19
Replies: 1486
Views: 193897

Re: A380 Production Thread Part 19

I agree that if Airbus dont do anything then the program will be stone dead soon. But that will be incrediby sad for several reasons. First, from a passenger perspective, the A380 is effectively the ONLY new aircraft left with somewhat acceptable seat with in coach and it is also the most silent air...

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by SteinarN
Sun Dec 18, 2016 4:08 pm
Forum: Civil Aviation
Topic: LAMIA RJ85 crashes in Colombia
Replies: 517
Views: 125328

Re: LAMIA RJ85 crashes in Colombia

"Pilot in Colombia plane tragedy that killed most of Brazilian football team 'was not trained properly'" http://www.telegraph.co.uk/news/2016/12/18/pilot-colombia-plane-tragedy-killed-brazilian-football-team/?WT.mc_id=tmg_share_em As I suspected there are further revelations regarding the...

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by SteinarN
Sat Dec 17, 2016 6:01 pm
Forum: Civil Aviation
Topic: Cessna scraps unsold skycatcher frames
Replies: 36
Views: 7725

Re: Cessna scraps unsold skycatcher frames

Using a modern inline four automobile engine in an airplane is possible and already done, it's called a Thielert (now Continental), the base engine is a Mercedes. It was so difficult a feat that the company went bankrupt, but now it works OK, and yes you can get it on a Cessna 172 and still see out...

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by SteinarN
Mon Dec 12, 2016 5:38 pm
Forum: Civil Aviation
Topic: LAMIA RJ85 crashes in Colombia
Replies: 517
Views: 125328

Re: LAMIA RJ85 crashes in Colombia

Zeke There is a lot of problems with what you have posted regarding versions and range of this aircraft. We all, i assume you also, know that this was a passenger plane carrying passengers, some 60 passengers actually. You, beeing a type rated pilot, should really know that the airplane you link to ...

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by SteinarN
Mon Dec 12, 2016 5:11 pm
Forum: Civil Aviation
Topic: West Air CRJ Crashed in Northern Sweden
Replies: 98
Views: 35438

Re: West Air CRJ Crashed in Northern Sweden

In short, the IRU1 failed in the pitch channel, this faulty data was displayed to the left seat pilot via the the primary flight display showing a rapidly increasing pitch, up to 30 degrees, while the aircraft actually was level and perfectly stable. The autopilot disengaged after a few seconds of f...

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by SteinarN
Tue Dec 06, 2016 9:02 pm
Forum: Civil Aviation
Topic: What happened to the 777X orders?
Replies: 323
Views: 37110

Re: What happened to the 777X orders?

The problem with the 777X is not how its projected performance compares today against todays aircraft with todays engines. But the problem is how a 2025 year 777X will compete with a 2025 year A350(K) with next generation engines slightly better than 777X engines. This will dramatically change the ...

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by SteinarN
Tue Dec 06, 2016 7:06 pm
Forum: Civil Aviation
Topic: What happened to the 777X orders?
Replies: 323
Views: 37110

Re: What happened to the 777X orders?

The problem with the 777X is not how its projected performance compares today against todays aircraft with todays engines. But the problem is how a 2025 year 777X will compete with a 2025 year A350(K) with next generation engines slightly better than 777X engines. This will dramatically change the f...

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by SteinarN
Tue Dec 06, 2016 6:31 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

Regarding Qatar, I will hazard a guess. Qatar is simply out of money and are not able to pay for their planes and/or cabin equipment. Alternatively, they are able to pay but they have absolutely no need for the planes due to not enough passengers or to many planes ordered or a combination. Somethin...

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by SteinarN
Tue Dec 06, 2016 3:26 pm
Forum: Civil Aviation
Topic: Airbus A350 Production And Delivery Thread - 2016-2017 (Part 17)
Replies: 4438
Views: 1521797

Re: A350 Production And Delivery Thread Part 17

Regarding Qatar, I will hazard a guess. Qatar is simply out of money and are not able to pay for their planes and/or cabin equipment. Alternatively, they are able to pay but they have absolutely no need for the planes due to not enough passengers or to many planes ordered or a combination. Something...

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by SteinarN
Thu Dec 01, 2016 2:19 pm
Forum: Civil Aviation
Topic: LAMIA RJ85 crashes in Colombia
Replies: 517
Views: 125328

Re: LAMIA RJ85 crashes in Colombia

Does anyone know how many hours storage capacity the cockpit voice recorder have in this plane?
The plane took off about 4,5 hours before it crashed, I wonder if the start of the flight might be erased from the cockpit voice recorder due to not enough storage capacity?

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by SteinarN
Tue Oct 25, 2016 2:26 am
Forum: Technical/Operations
Topic: A350 "winglet"
Replies: 29
Views: 10782

Re: A350 "winglet"

Is the A350 allowed to fly with only one winglet, like the A330, or no (like I believe the 737 with blended winglets?)? It is most certainly allowed to fly long enough so that it can land. But I doubt it is allowed to take off with one missing, altough i am sure the aircraft would have no problem b...

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by SteinarN
Thu Oct 13, 2016 11:51 am
Forum: Civil Aviation
Topic: First A330neo Starts Final Assembly
Replies: 69
Views: 16317

Re: First A330neo Starts Final Assembly

It looks like there is a hole in the wall to make room for the left wing tip :O

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