Search found 1014 matches

by 77west
Fri Nov 17, 2017 9:48 am
Forum: Technical/Operations
Topic: Fuel exhaustion
Replies: 7
Views: 1556

Re: Fuel exhaustion

I had someone ask me today what a "runway excursion at Queenstown" meant. I explained what an excursion was, and why Queenstown was a bad airport to try one at. Fuel exhaustion, however, is bad at any point that you are still in the air, or taking off. (especially from Queenstown, or simil...

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by 77west
Fri Nov 17, 2017 9:43 am
Forum: Technical/Operations
Topic: Why is the A343 "underpowered"?
Replies: 100
Views: 16495

Re: Why is the A343 "underpowered"?

This is such a tedious topic. Does the A340-200/300 have a lower than average T/W ratio - yes. Does the B757 have a higher than average T/W ratio - yes. Does this mean either is bad or not optimised - no. Would I trust an A340 to get me to where I am going - absolutely. It is a vehicle. They wont al...

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by 77west
Fri Nov 17, 2017 8:57 am
Forum: Civil Aviation
Topic: Etihad to retire the 77L
Replies: 143
Views: 43435

Re: Etihad to retire the 77L

From memory, some of them originally came from Air India so may not be in the best condition You have any proof to back up that statement or are you just trying to blend in with the rest of the ignorant, habitual AI bashers on this forum? Yip, plenty of proof, look here: https://www.bangaloreaviati...

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by 77west
Fri Nov 17, 2017 2:32 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - November 2017
Replies: 369
Views: 28084

Re: New Zealand Aviation Thread - November 2017

Anyone here know who to call RE KoruNet, the NZ employee system? One of our staff has a cellphone that constantly gets txts that are clearly internal - such as today referring to an exercise (presumably) about an A320 runway excursion at Queenstown. As well as many other internal-nature txts. It was...

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by 77west
Thu Nov 16, 2017 4:59 am
Forum: Civil Aviation
Topic: Etihad to retire the 77L
Replies: 143
Views: 43435

Re: Etihad to retire the 77L

Perhaps Air India can take it back, they surely can use with it now, since routes to the US are finally working. But then Oil is rising again, these birds are guzzlers. If AI take them back, they will probably just part them out like they did last time. Could these be the first of the "NG"...

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by 77west
Thu Nov 16, 2017 3:34 am
Forum: Civil Aviation
Topic: Etihad to retire the 77L
Replies: 143
Views: 43435

Re: Etihad to retire the 77L

From memory, some of them originally came from Air India so may not be in the best condition

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by 77west
Mon Nov 13, 2017 2:17 am
Forum: Technical/Operations
Topic: Engine cooling on short hops
Replies: 35
Views: 6749

Re: Engine cooling on short hops

The famous GE90 growl on start up is a direct result of Rotor Bow.. Ive come across this GE90 growl quote many times across this forum. Any reference to this phenomenon? I read that it is due to the way the air flows at a specific RPM during start that causes a resonance in the combustors. Nothing ...

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by 77west
Sun Nov 12, 2017 11:59 pm
Forum: Technical/Operations
Topic: Why does the 747 not board upper deck passengers from the second level?
Replies: 11
Views: 3667

Re: Why does the 747 not board upper deck passengers from the second level?

The freighter can board its crew through the upper deck door however Just need a tall set of steps Incorrect, the upper deck door on the 747 converted freighter is the same as the passenger version. It is used for emergency only. I can't speak for the 400 but I used to see a lot of these at NRT alo...

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by 77west
Fri Nov 10, 2017 4:58 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - November 2017
Replies: 369
Views: 28084

Re: New Zealand Aviation Thread - November 2017

I have said for a while the CS100 would fit quite well at NZ, for much the same reasons above. Sadly I agree it is quite unlikely. But, it is only a matter of time before routes like AKL-IVC and ZQN-ROT or even ZQN-HLZ demand something bigger/faster than the ATR and more direct flights. So will be i...

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by 77west
Fri Nov 10, 2017 4:37 am
Forum: Technical/Operations
Topic: Thought experiment: How well would an airliner REALLY run on AvGas?
Replies: 14
Views: 1658

Re: Thought experiment: How well would an airliner REALLY run on AvGas?

Many airports run their ground service vehicles on Jet fuel, with some lubricant added as noted by Florianopolis above. This discussion came up at work today actually about running engines on different fuels.

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by 77west
Wed Nov 08, 2017 9:47 am
Forum: Technical/Operations
Topic: Engine cooling on short hops
Replies: 35
Views: 6749

Re: Engine cooling on short hops

I think the OP is confusing "cooling" with short cycle fatigue. The 737NG and A320 series dont like short 20 minute flights in a high humidity salty environment. Sure, the planes can do it, just that maintenance goes through the roof compared to the 717 and the old JT8 737-200. Combination...

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by 77west
Tue Nov 07, 2017 5:23 am
Forum: Technical/Operations
Topic: Towing operations
Replies: 13
Views: 2200

Re: Towing operations

It may also have something to do with cancelling out the sideways forces on the gear before moving forward but this may only apply to when they are parking in the bay, not pushing back. I am sure I read something along those lines.

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by 77west
Wed Nov 01, 2017 5:29 am
Forum: Civil Aviation
Topic: Does the 787 actually fly any point to point routes?
Replies: 120
Views: 24088

Re: Does the 787 actually fly any point to point routes?

Maybe not in Boeing sense, but certainly look at routes such as LHR-AUS, Japan-BOS, perhaps not true point to point but certainly long thin routes.

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by 77west
Fri Oct 27, 2017 4:49 am
Forum: Technical/Operations
Topic: Help me identify these 747 seats
Replies: 10
Views: 2466

Re: Help me identify these 747 seats

I cant clearly see but the first connectors you show are not VGA, more like wide Serial or more likely some custom/bespoke connector. The second pic showing connectors only have 2 rows of pins, normal VGA has 3 rows of 5 pins.

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by 77west
Wed Oct 18, 2017 10:19 am
Forum: Technical/Operations
Topic: CSeries 100/300: Comparison/Integration With Airbus's Product Line
Replies: 1
Views: 2681

Re: CSeries 100/300: Comparison/Integration With Airbus's Product Line

I think the A319 is dead at this point. A320 family will evolve into A320-321-322. With a CS500 we may even see the A320 disappear in time. In terms of overlap, the CS300 and A319 certainly are direct competitors, hence my point. That said, the A319LR may still have a place, albeit niche.

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by 77west
Mon Oct 16, 2017 3:25 am
Forum: Technical/Operations
Topic: Denver International - 16,000 foot runway
Replies: 16
Views: 4263

Re: Denver International - 16,000 foot runway

Long runways end up hitting tire speed limits, so any longer is not going to make a big difference. JNB often suffers from this especially on longhaul in the 77W

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by 77west
Sat Oct 14, 2017 7:00 am
Forum: Technical/Operations
Topic: Technical questions regarding (uncontained) engine failures
Replies: 18
Views: 4663

Re: Technical questions regarding (uncontained) engine failures

In general, if it is a propeller aircraft, the torque effects in an engine out situation are significant and produce a rolling moment. This is most pronounced in light twins. Many light twins have engines rotating in the same direction, making one more "critical" than the other. Not only ...

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by 77west
Sat Oct 14, 2017 6:10 am
Forum: Technical/Operations
Topic: Technical questions regarding (uncontained) engine failures
Replies: 18
Views: 4663

Re: Technical questions regarding (uncontained) engine failures

2) StereoTechnique and others are correct again that on jet aircraft with multiple spools/shafts the spools are counter-rotating so as to balance the torque during normal flight. As others have stated, this is primarily due to simplicity of design, manufacture and maintenance, otherwise you'd have ...

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by 77west
Tue Oct 10, 2017 3:29 am
Forum: Technical/Operations
Topic: Boeing 747-400 Start Up Procedure
Replies: 31
Views: 8978

Re: Boeing 747-400 Start Up Procedure

The start order may also be influenced by whether the AUX HYD pumps are fitted to 1 and 4, or only 4. (Yet another of the 747s customer options) But typically at least 4 seems to always be started first, by itself or with one of the others if on a decent air source (APU)

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by 77west
Fri Oct 06, 2017 6:19 am
Forum: Technical/Operations
Topic: Boeing 747-400 Start Up Procedure
Replies: 31
Views: 8978

Re: Boeing 747-400 Start Up Procedure

It depends if fitted with autostart or not. It is all in the provided manuals... with the product you bought...

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by 77west
Thu Oct 05, 2017 10:30 am
Forum: Civil Aviation
Topic: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine
Replies: 687
Views: 199358

Re: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine

The investigators are lucky: Some missing parts from #AF66, which lost an engine fan and inlet over Greenland, have been spotted on the ice sheet by helicopter and plans under way to recover them, BEA says https://twitter.com/ReutersAero/status/915873148125564928 That is pretty quick to find, well ...

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by 77west
Thu Oct 05, 2017 5:25 am
Forum: Civil Aviation
Topic: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine
Replies: 687
Views: 199358

Re: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine

m1m2 wrote:
I would say it's a strut to secure the cowl in the open position.


No, too big. The part you are refering to is a black rod with a yellow band in the middle, higher up on the engine. There are a few of them.

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by 77west
Mon Oct 02, 2017 11:29 am
Forum: Technical/Operations
Topic: Cabin noise comparision A330 / B787 / B777
Replies: 52
Views: 12231

Re: Cabin noise comparision A330 / B787 / B777

The 777 flies in the same flight altitude regime as all other large jet powered passenger airplanes, about FL280 to FL410. The fact that the heavier -300ER on a 14hr flight may stay at FL280-320 for a bit longer than, say, an A380 or 787, has minimal impact on turbulence, the worst weather related ...

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by 77west
Mon Oct 02, 2017 10:38 am
Forum: Civil Aviation
Topic: Should RR re-enter the A320/737 market again
Replies: 6
Views: 1443

Re: Should RR re-enter the A320/737 market again

And you forget, more than half of those second-hand airframes already have a part Rolls-Royce engine on them - the IAE V2500. (Yes I know they have sold off most of their shareholding, but continue to supply IAE with many components.) I agree with Channex - look to RR for the 797/MOM or/and maybe th...

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by 77west
Mon Oct 02, 2017 10:27 am
Forum: Technical/Operations
Topic: Cabin noise comparision A330 / B787 / B777
Replies: 52
Views: 12231

Re: Cabin noise comparision A330 / B787 / B777

In terms of noise the A343 and A346 are completely different aircraft. The A343 is like sitting in a room with a lot of teenage girls drying their hair. On the A346 I was waiting for the engines to spool up at takeoff, but we just surged forward with little extra noise. A fabulously quiet and comfo...

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by 77west
Mon Oct 02, 2017 10:04 am
Forum: Technical/Operations
Topic: Improvments of B767-300ERs
Replies: 8
Views: 2510

Re: Improvments of B767-300ERs

Not trying to turn this into the usual A vs B thing... simply as a side addendum to the discussion... I think that it would be fair to say that the 767-300ER has been "improved/evolved/morphed" marginally less than what the A330 has... and the main reason is because the -300ER was already...

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by 77west
Mon Oct 02, 2017 9:51 am
Forum: Civil Aviation
Topic: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine
Replies: 687
Views: 199358

Re: AF66 CDG-LAX (A388-F-HPJE) diverts to Goose Bay (YYR) with an uncontained engine failure to #4 engine

I think the QF incident would also have at least some impact on the captains decision. Kudos to the designers though, after such an event, still holding on to half the engine..

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by 77west
Mon Oct 02, 2017 9:04 am
Forum: Civil Aviation
Topic: Boeing-order after Monarch-demise
Replies: 43
Views: 13106

Re: Boeing-order after Monarch-demise

The slots, to my knowledge, are the property of Monarch and the liquidator (KPMG) may well have rights to sell them to recoup losses, much like other assets. Not sure if the contracts have clauses to stop this though. I don't believe any manufacturer allows this. :shakehead: They would have to be p...

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by 77west
Mon Oct 02, 2017 6:38 am
Forum: Civil Aviation
Topic: Monarch Airlines ceases operations, thousands stranded
Replies: 391
Views: 70905

Re: Monarch in trouble (again)...?

RE the pilots - given they had 757 in the past, as well as 737, and the fact that you can actually train pilots to fly other types, I don't think the fleet type difference would be a major obstacle...

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by 77west
Mon Oct 02, 2017 5:40 am
Forum: Civil Aviation
Topic: Monarch Airlines ceases operations, thousands stranded
Replies: 391
Views: 70905

Re: Monarch in trouble (again)...?

Could we see subbing in of bigger planes, like BA sending a 777 or 744 to pick up 2x A320 loads?

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by 77west
Mon Oct 02, 2017 4:27 am
Forum: Civil Aviation
Topic: Boeing-order after Monarch-demise
Replies: 43
Views: 13106

Re: Boeing-order after Monarch-demise

The slots, to my knowledge, are the property of Monarch and the liquidator (KPMG) may well have rights to sell them to recoup losses, much like other assets. Not sure if the contracts have clauses to stop this though.

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by 77west
Thu Sep 28, 2017 9:38 am
Forum: Technical/Operations
Topic: Is the A380 a "hard lander"?
Replies: 40
Views: 9116

Re: Is the A380 a "hard lander"?

Never flown the A380, but my pilot friends flying the Whale say it's hard to get a greaser - there's always a thump. My A330 OTOH is a grandma's airplane. You really gotta put some significant effort to screw it up... :) My 787 requires a bit more effort to do a greaser in. But it's fine by me. Mak...

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by 77west
Thu Sep 28, 2017 6:04 am
Forum: Technical/Operations
Topic: Is the A380 a "hard lander"?
Replies: 40
Views: 9116

Re: Is the A380 a "hard lander"?

I also suspect the forward trailing gear truck/bogie is partially to blame for this; there is enough anecdotal evidence between the 767, A380 and lesser extent, A350. It may very well be the safer design though, from the point of not floating the landings ala A330 style.. Looks ugly too in my opinio...

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by 77west
Thu Sep 28, 2017 4:30 am
Forum: Technical/Operations
Topic: Stratolaunch, World’s Largest Aircraft, Completing Testing
Replies: 4
Views: 1263

Re: Stratolaunch, World’s Largest Aircraft, Completing Testing

Will they have to run every mission as "Experimental" then?

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by 77west
Sat Sep 23, 2017 3:44 am
Forum: Civil Aviation
Topic: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations
Replies: 147
Views: 20370

Re: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations

A massive tanker is currently heading to Auckland port with 1.5 million litres of jet fuel on board. It is expected that the fuel will reach the airport by Tuesday http://www.news.com.au/world/breaking-news/massive-tanker-bound-for-auckland-airport/news-story/e0c2dc0feee3916c6bdf96d38406de19 So tha...

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by 77west
Thu Sep 21, 2017 10:02 am
Forum: Civil Aviation
Topic: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations
Replies: 147
Views: 20370

Re: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations

We have booked flights to AKL on 27th October and flight back both via HKG on 13th November...do you think the flight back with CX could still be affected from fuel shortages and affect the connecting flight to FRA? ( 2.5 hours) Will be fixed well before then. Thats more than a month out. They are ...

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by 77west
Thu Sep 21, 2017 10:01 am
Forum: Civil Aviation
Topic: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations
Replies: 147
Views: 20370

Re: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations

We were talking about this at work today - Fonterra (National/Large Dairy Company) probably have the biggest tanker fleet in the country. Just saying... (Yes I realise dairy tankers can't easily haul jet A1)

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by 77west
Thu Sep 21, 2017 9:51 am
Forum: Civil Aviation
Topic: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations
Replies: 147
Views: 20370

Re: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations

I take it the fuel offloaded from the 747 is only usable in company (QF, JQ) aircraft and not other airlines? Also - how often, if ever, has this been done before; direct airplane-to-airplane transfers? Maybe NZ should send a few 77W down to WLG or CHC to bring back some fuel for their A320s.

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by 77west
Mon Sep 18, 2017 2:21 am
Forum: Military Aviation & Space Flight
Topic: Saying goodbye to Cassini and the Saturn system
Replies: 27
Views: 3425

Re: Saying goodbye to Cassini and the Saturn system

And she is gone. About 15 minutes ago Cassini burned up in Saturn's atmosphere. What a craft... time to rest now after 20 years of work. It didn't burn as there is no oxygen at Saturn. Cassini simply disintegrated. As per the comment above, it burned up, according to NASA. Obviously not "burn&...

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by 77west
Mon Sep 18, 2017 2:18 am
Forum: Civil Aviation
Topic: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations
Replies: 147
Views: 20370

Re: Auckland Airport Fuel Shortage - Resulting in diversions and cancellations

I think they should have more than a few days of fuel in storage at AKL airport. 1-2 weeks worth of normal operations would be a better margin for these sorts of events. Also, I was surprised to read on the pipe operators site that the different fuel types are pumped down the pipe one after another,...

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by 77west
Fri Sep 15, 2017 10:53 am
Forum: Military Aviation & Space Flight
Topic: Saying goodbye to Cassini and the Saturn system
Replies: 27
Views: 3425

Re: Saying goodbye to Cassini and the Saturn system

And she is gone. About 15 minutes ago Cassini burned up in Saturn's atmosphere. What a craft... time to rest now after 20 years of work.

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by 77west
Mon Sep 11, 2017 6:07 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - September 2017
Replies: 281
Views: 28745

Re: New Zealand Aviation Thread - September 2017

https://www.stuff.co.nz/business/indust ... owth-plans

Better/cheaper than taking people's houses I suppose
-->

Wellington Airport want the golf course land for expansion:

https://www.stuff.co.nz/business/indust ... owth-plans

Better/cheaper than taking people's houses I suppose

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by 77west
Sun Sep 10, 2017 12:06 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - September 2017
Replies: 281
Views: 28745

Re: New Zealand Aviation Thread - September 2017

Just giving thought to 789 deliveries from CHS.-AKL..At 7200nm it looks like about a 16.hr flight.. Not too excessive , looks like a non stop flight if they can get away early in the day. I note the route tracks pretty much over PPT.. I am sure that this won't even be a stretch for the 789, especia...

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by 77west
Sat Aug 26, 2017 8:16 pm
Forum: Technical/Operations
Topic: Take off speeds vs a Car at 180 mph
Replies: 15
Views: 2179

Re: Take off speeds vs a Car at 180 mph

Remember the plane is much bigger and you are much higher off the ground so yes it is an illusion. You certainly do reach those speeds.

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by 77west
Fri Aug 25, 2017 8:16 pm
Forum: Civil Aviation
Topic: When will there be a 787F?
Replies: 21
Views: 5857

Re: When Will We See 787F?

It wont be based off the -8, thats for certain, so do we think -9 or -10 ? The -10 would appeal to package freight companies who need the volume but would this compete against the 777F, or, with a possible 777-8F, would the -10 seem more likely?

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by 77west
Thu Aug 24, 2017 11:18 pm
Forum: Civil Aviation
Topic: ATR 42/72 Production and Delivery thread
Replies: 29
Views: 6202

Re: ATR 42/72 Production and Delivery thread

NZ got a new one in July, which begs the question, what does a delivery flight TLS-NZ look like for an ATR, ought to be making a lot of stops. I think it is only 5 or so stops, I believe it is something like Toulouse - Oman - Singapore - Brisbane - Auckland Although looking at that on GC mapper it ...

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-->

LamboAston wrote:
On another thread, there is a discussion about SAS coming to AKL.
viewtopic.php?f=3&t=1371251&p=19749045#p19749045


No way that's happening...

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by 77west
Fri Aug 11, 2017 5:52 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - August 2017
Replies: 250
Views: 28994

Re: New Zealand Aviation Thread - August 2017

If JQ is gonna run Q400 around, I wonder if it would make sense for NZ to get some CS100 for routes that could support it...

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by 77west
Tue Aug 08, 2017 1:55 am
Forum: Civil Aviation
Topic: GCAA: No mechanical issues before EK521 crash.
Replies: 59
Views: 8447

Re: Emirates 777 crash not mechanical

bennett123 wrote:
Would any parts be re used, (wing and enginee etc).

Or would they just scrap it.


Highly unlikely, besides, they probably could not get it back until the investigators release it. The parts paper trail and potential liability down the road would be a nightmare.

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