Search found 1014 matches

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by 77west
Fri Jul 21, 2017 5:52 am
Forum: Technical/Operations
Topic: Different door configs
Replies: 2
Views: 786

Re: Different door configs

All come down to customer options really. Air NZ, for example, had the 767 version with just overwing exits and the 4 main doors front/back, this layout gives the most floor space at the expense of max passenger load. For other airlines, quicker boarding/deboarding meant they were better off with th...

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by 77west
Sun Jul 16, 2017 1:50 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - July 2017
Replies: 160
Views: 19111

Re: New Zealand Aviation Thread - July 2017

A350-900 and B777-8 seem the only realistic contenders for AKL-NYC. With the 777-9 being the logical 77W replacement, this one is Boeing's to lose.

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by 77west
Sun Jul 16, 2017 1:16 am
Forum: Civil Aviation
Topic: Japan Airlines outlines A350 strategy
Replies: 66
Views: 21515

Re: Japan Airlines outlines A350 strategy

I dont think a failure of the folding tip would result in loss of control. From what I gather, the folding tip is exactly that, just the swept back wing part. If there is any kind of failure it will just break cleanly away, however it is designed not to fail as it'll lock into place once deployed u...

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by 77west
Sat Jul 15, 2017 10:52 pm
Forum: Civil Aviation
Topic: Japan Airlines outlines A350 strategy
Replies: 66
Views: 21515

Re: Japan Airlines outlines A350 strategy

I dont think a failure of the folding tip would result in loss of control.

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by 77west
Fri Jul 14, 2017 10:02 pm
Forum: Civil Aviation
Topic: HA177 Emergency Landing. 12 July. Engine failure.
Replies: 26
Views: 8849

Re: HA177 Emergency Landing. 12 July. Engine failure.

QANTAS has never lost a frame nor had loss of life throughout its 97 years of ops. A quick search on Wikipedia shows that this is incorrect. Qantas has had several fatal accidents (most recently in 1951) and hull losses (most recently in 1960). Though those are rather excellent numbers, since it ha...

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by 77west
Fri Jul 14, 2017 6:26 am
Forum: Technical/Operations
Topic: Year 10 work experience @Sydney Airport
Replies: 6
Views: 3440

Re: Year 10 work experience @Sydney Airport

You may be better off approaching a smaller company like a fixed base operator or something similar. I managed to get work experience that even included being on test flights, but this was way back in the early 2000's in another country..

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by 77west
Fri Jun 30, 2017 7:26 am
Forum: Civil Aviation
Topic: DL releases anti-ME3 video
Replies: 196
Views: 22988

Re: DL releases anti-ME3 video

I think it is time people start fighting fire with fire, as Trump's advisors put it. I hereby request the Trump government send 150 Billion in real dollars to each of the US3. This will not be a subsidy, but a "legitimate government investment" in the words of Al Baker. Now before anyone f...

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by 77west
Wed Jun 28, 2017 9:32 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - June 2017
Replies: 171
Views: 22759

Re: New Zealand Aviation Thread - June 2017

Really depends how the 77X shapes up I personally am a Boeing fan, but would prefer for NZ to get the A350, due to the much better economy hard product in a standard config (wide seats 9 abreast). They are also far quieter than the current 777s, and probably quieter than the 77X due to its thin sid...

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by 77west
Tue Jun 27, 2017 5:37 am
Forum: Civil Aviation
Topic: Boeing receives Unidentified Order for 20 777X
Replies: 51
Views: 16323

Re: Boeing receives Unidentified Order for 20 777X

SQ. Would not be NZ, thats too many, unless it was 20 777-X options across both -8 and -9.

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by 77west
Mon Jun 26, 2017 2:39 am
Forum: Technical/Operations
Topic: 737 MAX 10 and its levered landing gear
Replies: 14
Views: 10791

Re: 737 MAX 10 and its levered landing gear

So it is not really levered at all, semi or otherwise. It is just telescopic. I believe it is both. Telescoping to fit the wheel well and levered to move the rotation point rearwards. On a single axle gear, in order to "lever" they would have to have the axle offset from the centreline of...

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by 77west
Sat Jun 24, 2017 9:20 pm
Forum: Technical/Operations
Topic: 737-9 vs. 737-10 MAX Engine Power
Replies: 22
Views: 7117

Re: 737-9 vs. 737-10 MAX Engine Power

The gear look to be telescopic, not semi-levered, so who knows how much better this could make the takeoff performance!

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by 77west
Sat Jun 24, 2017 9:03 pm
Forum: Technical/Operations
Topic: 737 MAX 10 and its levered landing gear
Replies: 14
Views: 10791

Re: 737 MAX 10 and its levered landing gear

So it is not really levered at all, semi or otherwise. It is just telescopic.

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by 77west
Tue Jun 20, 2017 5:32 am
Forum: Technical/Operations
Topic: 737 MAX 10 and its levered landing gear
Replies: 14
Views: 10791

Re: 737 MAX 10 and its levered landing gear

I wonder if this design could be back-ported to the -9 and -8, it would improve their field performance as well, depending on if it weighs much more.

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by 77west
Tue Jun 13, 2017 6:13 am
Forum: Civil Aviation
Topic: 2017 Paris Air Show - Boeing News and Orders
Replies: 411
Views: 95293

Re: 2017 Paris Air Show - Boeing News and Orders

I believe both the 77X family and the A350 family could work for NZ, but see the 77X having an edge in commonality with existing fleet.

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by 77west
Tue Jun 13, 2017 5:58 am
Forum: Technical/Operations
Topic: Roll with spoilers only on an unloaded wing?
Replies: 11
Views: 1356

Re: Roll with spoilers only on an unloaded wing?

Doesnt the A310 have no outboard ailerons, using spoilers for roll control? It does have inboard though which would help with your scenario

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by 77west
Tue Jun 13, 2017 5:50 am
Forum: Civil Aviation
Topic: Caribbean airlines claiming the 600series ATR is unreliable
Replies: 236
Views: 34169

Re: Caribbean airlines claiming the 600series ATR is unreliable

And I have never had any problems myself. same. If they were so bad NZ wouldn't keep ordering them to eventually have an all-ATR fleet. New Zealand sure has its fair share of humidity as well, but not the temperatures of the Caribbean... I seem to think that all the overnight airports are near the ...

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by 77west
Fri Jun 09, 2017 8:33 pm
Forum: Civil Aviation
Topic: Boeing 797/MOM Discussion Thread
Replies: 585
Views: 85537

Re: Another 797/MOM Article

I think we may see the 787-8 getting quietly killed off if it is even still available by MoM entry to service. Boeing has already said it does not want to build it. This would leave a decent enough gap between the MoM and the 787-9. Probably see two MoM versions to cover the gap between 737-10 and 7...

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by 77west
Fri Jun 09, 2017 5:42 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

Just ran a quick and dirty plot, and crossing Chile it came back at over 8,000nm so no, even taking winds into account I don't think that would work. You are talking about crossing both the pacific and atlantic oceans. Using 80S70W which is the furthest south I could select, it comes back at 6,870n...

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by 77west
Thu Jun 08, 2017 9:51 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

I just ran it through a flight planner and got less than 7% actually. The great circle mapper must be off or I misinterpreted the shaded areas. This was using FACT, FIMP, YPPH and NZCH as EDTO diversion airports. So do-able at 330mins. It actually match the gcmap shades, as you can see the point fa...

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by 77west
Thu Jun 08, 2017 9:00 am
Forum: Civil Aviation
Topic: Caribbean airlines claiming the 600series ATR is unreliable
Replies: 236
Views: 34169

Re: Caribbean airlines claiming the 600series ATR is unreliable

Hasn't been many problems with them in New Zealand. They usually only do flights between half an hour and an hour and a half though, with a few exceptions. I have done many, many ATR72 flights in NZ, and only once that I can remember did we end up swapping planes due to a tech issue. A -500 broke a...

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by 77west
Thu Jun 08, 2017 8:10 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

Offhand guess: the detour increases total distance by less than 10%. I just ran it through a flight planner and got less than 7% actually. The great circle mapper must be off or I misinterpreted the shaded areas. This was using FACT, FIMP, YPPH and NZCH as EDTO diversion airports. So do-able at 330...

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by 77west
Wed Jun 07, 2017 7:17 am
Forum: Civil Aviation
Topic: QF32 - Could things have been handled differently?
Replies: 71
Views: 12175

Re: QF32 - Could things have been handled differently?

Clearly serious problems with major engine failures in the past, like UA292, led to changes in the control systems of aircraft and flying procedures that led to the decisions or the ability to do so as made with QF32. Sometimes it just takes some good CRM and sound basic airmanship to prevent a maj...

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by 77west
Wed Jun 07, 2017 6:52 am
Forum: Civil Aviation
Topic: QF32 - Could things have been handled differently?
Replies: 71
Views: 12175

Re: QF32 - Could things have been handled differently?

I agree with Zeke. In the air with options is far safer than a fast, heavy landing with half the brakes inoperative. I mean the fact the autopilot was still available shows you that there was not a completely critical flight control breakdown. If half the wing was missing like that Cargo A300 that g...

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by 77west
Tue Jun 06, 2017 8:25 am
Forum: Technical/Operations
Topic: When did Boeing 747-400 start to get LCD screens and digital MCP
Replies: 11
Views: 2744

Re: When did Boeing 747-400 start to get LCD screens and digital MCP

I think it was developed about the same time the -400ER was being developed. All -400ER and ERF have the LCD screens from what I understand, with the retrofit being available on other -400/400F models.

QF received their first 400ER in 2002, so around 2003 seems reasonable.

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by 77west
Sun Jun 04, 2017 10:23 pm
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

[CPT-AKL] will take a significant detour or increase in EDTO Offhand guess: the detour increases total distance by less than 10%. I just ran it through a flight planner and got less than 7% actually. The great circle mapper must be off or I misinterpreted the shaded areas. This was using FACT, FIMP...

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by 77west
Tue May 30, 2017 6:11 am
Forum: Technical/Operations
Topic: Tecnical Questions on MOM
Replies: 8
Views: 1180

Re: Tecnical Questions on MOM

It is all incremental from here on out.. a percent or two here or there. Through the 90s and 2000's both wing and engine design improved quite a bit, but these days its really up to the engine guys for the biggest gains. The MoM has a hard place to fill - being hit from below by the efficient narrow...

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by 77west
Mon May 29, 2017 6:39 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

I believe the EDTO entry and exit points for this routing is GET or PER -MRU. But this is a long way off the GC track AKL-JNB/CPT The distance from this track to either GET/PER or MRU is substantial. Someone other than I might calculate what these distances might be from various waypoints on the GC...

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by 77west
Sat May 27, 2017 11:35 pm
Forum: Civil Aviation
Topic: BA experiencing computer problems.
Replies: 200
Views: 30338

Re: BA experiencing computer problems.

I often deal with servers used in small to medium business and we always make sure they have dual power supplies with double surge protection, IE, there is both passive and active surge protection in addition to line-interactive battery backup. The batteries cut in if supply voltage goes above or be...

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by 77west
Sat May 27, 2017 11:21 pm
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

Any flights going New Zealand - South Africa will come up against some serious restrictions over Antarctica. Here is a theoretical 777 flight using EDTO 330 minutes: http://www.gcmap.com/mapui?P=akl-cpt&MS=wls&DU=nm&SG=.84&SU=mach&E=330&EV=410&EU=kts As you can see, it wi...

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by 77west
Sat May 27, 2017 6:40 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

A twin can fly on one engine perfectly safe, the only stage they really need two engines is on take-off. What if they do lose one engine on take off, i.e., at V1? Aren't twins certified to take off on one engine? I'm not talking about starting a take off roll on one engine, that would be insanity. ...

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by 77west
Sat May 27, 2017 6:37 am
Forum: Technical/Operations
Topic: How come Air France doesn't have a French Flag on its livery
Replies: 16
Views: 3017

Re: How come Air France doesn't have a French Flag on its livery

Um.. have you looked at the tail colours? Blue, Red and White? Ring a bell perhaps? It is a stylized French flag, much like American, South African, and many others.

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by 77west
Fri May 26, 2017 7:59 pm
Forum: Technical/Operations
Topic: The Startup Game
Replies: 4
Views: 862

Re: The Startup Game

Without putting to fine a point on it; the OP does not seem to know even some of the basics of the industry such as charter vs scheduled, and what the correct aircraft operated on the route by competitors is. As pointed out Hawaiian use the 767-300ER, Air NZ used to use 767-300ER and now use 787-9 (...

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by 77west
Tue May 23, 2017 10:59 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

Agreed guys - the biggest threat is certainly not the fact you only have two (very well maintained) engines. Fire, passenger issues (medical, fighting etc) are all much more probable issues. A fire on an etops / edto route really scares me, especially with more and more lithium battery devices in th...

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by 77west
Mon May 22, 2017 9:55 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

I just think continually jacking up the times is not right. There needs to be a balance. The reason I say 120 is, you mostly are flying on one engine for only 60 min, then the second 60 min is descent (engine almost idle). I think that is the max and best of both worlds. I can tell you, I do NOT wa...

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by 77west
Mon May 22, 2017 9:51 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

The other issue with these arguments is it is not all about the sea; I would be just as worried having to make an emergency landing on say South Africa - Europe over the "lonely" African deep equatorial region. No form of transport is 100% safe. I would gladly fly a twin over any ocean, ba...

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by 77west
Mon May 22, 2017 9:11 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - May 2017
Replies: 188
Views: 20454

Re: New Zealand Aviation Thread - May 2017

Queenstown airport has launched an investigation after a JQ flight departed after the airports night time curfew http://www.stuff.co.nz/travel/travel-troubles/92813695/Queenstown-Airport-launches-investigation-after-Jetstar-flight-breaks-night-time-curfew I (and this is a first time for me) agree w...

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by 77west
Mon May 22, 2017 9:06 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

You people are a piece of work. On what planet is being on 1 engine in a twin as safe as being on 3 engines in a quad? None. ETOPS isn't any kind of capability that the aircraft can magically do. Stop applying 120, 138,180, 207...etc to any aircraft as being "perfectly capable" of flying ...

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by 77west
Mon May 22, 2017 7:53 am
Forum: Technical/Operations
Topic: Twins vs. quads and international over water routings.
Replies: 65
Views: 7513

Re: Twins vs. quads and international over water routings.

You people are a piece of work. On what planet is being on 1 engine in a twin as safe as being on 3 engines in a quad? None. ETOPS isn't any kind of capability that the aircraft can magically do. Stop applying 120, 138,180, 207...etc to any aircraft as being "perfectly capable" of flying ...

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by 77west
Mon May 22, 2017 7:40 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - May 2017
Replies: 188
Views: 20454

Re: New Zealand Aviation Thread - May 2017

Queenstown airport has launched an investigation after a JQ flight departed after the airports night time curfew http://www.stuff.co.nz/travel/travel-troubles/92813695/Queenstown-Airport-launches-investigation-after-Jetstar-flight-breaks-night-time-curfew I (and this is a first time for me) agree w...

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by 77west
Mon May 22, 2017 7:03 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - May 2017
Replies: 188
Views: 20454

Re: New Zealand Aviation Thread - May 2017

Queenstown airport has launched an investigation after a JQ flight departed after the airports night time curfew http://www.stuff.co.nz/travel/travel-troubles/92813695/Queenstown-Airport-launches-investigation-after-Jetstar-flight-breaks-night-time-curfew I (and this is a first time for me) agree w...

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by 77west
Mon May 22, 2017 6:26 am
Forum: Civil Aviation
Topic: When will an A-380 first park in the desert?
Replies: 19
Views: 6590

Re: When will an A-380 first park in the desert?

d8s wrote:
skipness1E wrote:
Do we really need ANOTHER A380 thread?


Of course we need another...not!

The first one will be in the desert by years end.


Correct. I doubt the soon to be off lease SQ birds will ever fly again, certainly not in mainline airline configuration.

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by 77west
Mon May 22, 2017 6:20 am
Forum: Technical/Operations
Topic: Airlines using the same engine on different widebodies
Replies: 11
Views: 1805

Re: Airlines using the same engine on different widebodies

Funny how there used to be three WB engines in a given decade that most of the frames used, and now we've got unique engines for each airframe and a 1:1 pairing of engines and airframes. I guess it's a consequence of a) planes in the past being designed around the most powerful engines around, and ...

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by 77west
Fri May 19, 2017 6:05 am
Forum: Technical/Operations
Topic: Boeing 737 Interchangeable Cockpit Items
Replies: 8
Views: 1045

Re: Boeing 737 Interchangeable Cockpit Items

If you think about it, a screen is a screen, so as long as it is the same part number or an approved part, there is no reason why you couldn't swap them around.

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by 77west
Fri May 19, 2017 5:57 am
Forum: Technical/Operations
Topic: Electronic devices restrictions (tech related)
Replies: 9
Views: 1010

Re: Electronic devices restrictions (tech related)

PhilBy wrote:
wardialer wrote:

Certain laptops have operational temperature limits and storage temperature limits as well.

.


I'm curious to know how you plan to operate your laptop while it is in the cargo hold!


TeamViewer?

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by 77west
Fri May 19, 2017 5:54 am
Forum: Technical/Operations
Topic: Airlines using the same engine on different widebodies
Replies: 11
Views: 1805

Re: Airlines using the same engine on different widebodies

I remember when they were talking about the A3XX back in the late 90s (precursor to A380) they said it would use existing A330 engines. Obviously this didnt happen, but would be about the only way a large twin above 767 size could be used on a Quad.

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by 77west
Thu May 18, 2017 1:51 am
Forum: Technical/Operations
Topic: Quick question: Can some engines on some types be started with the PACS running?
Replies: 32
Views: 3314

Re: Quick question: Can some engines on some types be started with the PACS running?

Is that due to the packs putting a load on the electrical system, sufficiently high to not crank the motor concurrently? It's not an electrical thing, it's a bleed air thing. Yes the APU does spin a generator that creates electricity to use before the engines are going, but it's second job is to pr...

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by 77west
Tue May 16, 2017 6:07 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - May 2017
Replies: 188
Views: 20454

Re: New Zealand Aviation Thread - May 2017

SQ to cancel 3 flights on capital express service later in the year due to weaker demand. Services ex WLG will not operate on 14 August, 5 September and 24 October http://www.stuff.co.nz/business/92644365/singapore-airlines-trimming-several-flights-from-capital-express-service So only 1 rotation pe...

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by 77west
Tue May 16, 2017 6:02 am
Forum: Civil Aviation
Topic: Oldest Liveries Still In Use?
Replies: 64
Views: 13747

Re: Oldest Liveries Still In Use?

Air New Zealand has used the same corporate emblem, the Koru, for a very long time. The livery has changed however.

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by 77west
Tue May 16, 2017 5:50 am
Forum: Technical/Operations
Topic: A pilot has to put oxygen mask on if the other pilot is out of the cockpit?
Replies: 17
Views: 3423

Re: A pilot has to put oxygen mask on if the other pilot is out of the cockpit?

I am sure I read somewhere that a 747 is rated for up to 3 windows blown out and can maintain almost full pressurization by closing off the cabin outlet valves. The open windows are now your new cabin outlet valves!!

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by 77west
Mon May 15, 2017 5:39 am
Forum: Civil Aviation
Topic: Whirlybird Special--McDonald's Run With A Helicopter In Australia
Replies: 8
Views: 1618

Re: Whirlybird Special--McDonald's Run With A Helicopter In Australia

So as Zeke says perhaps someone else was flying, leaving the engines running with no one onboard seems like a bad idea.

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