Search found 27 matches

by Some1Somewhere
Tue Aug 20, 2019 10:09 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - August 2019
Replies: 260
Views: 27668

Re: New Zealand Aviation Thread - August 2019

Pretty certain ZQN can only handle upto B737/A321 due to the mountains I had a look at the arrival and departure charts there is nothing specific which a wide body would not be able to do. The runway is short for a wide body, only 1777m However going into more detail I saw the rescues and fire figh...

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by Some1Somewhere
Sat Aug 10, 2019 1:11 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 3641
Views: 473106

Re: Boeing 737MAX Grounded Worldwide Q3 2019

It seems we do so much of this, that the fact that Boeing flew a FAA test flight clearly doing the kinds of things that should trigger MCAS without the plane splashing into the ocean largely gets ignored. Maybe Boeing has a grip on things and maybe October isn't that unreasonable after all... I gue...

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by Some1Somewhere
Thu Aug 08, 2019 8:17 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 3641
Views: 473106

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think he's saying the opposite. Putting shielding around the computer can make things worse.

A hardware solution is only possible in the sense of a complete redesign.

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by Some1Somewhere
Wed Aug 07, 2019 7:18 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - August 2019
Replies: 260
Views: 27668

Re: New Zealand Aviation Thread - August 2019

Having readily removable battery packs means pulling multiple tons out of likely the wings. Fuel is already likely the heaviest thing on the plane, and batteries are less energy dense. There is work being done on flow cells, where you have liquid components allowing very fast recharging (cycle old ...

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by Some1Somewhere
Mon Aug 05, 2019 11:08 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - August 2019
Replies: 260
Views: 27668

Re: New Zealand Aviation Thread - August 2019

Having readily removable battery packs means pulling multiple tons out of likely the wings. Fuel is already likely the heaviest thing on the plane, and batteries are less energy dense. There is work being done on flow cells, where you have liquid components allowing very fast recharging (cycle old f...

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by Some1Somewhere
Mon Aug 05, 2019 12:37 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - August 2019
Replies: 260
Views: 27668

Re: New Zealand Aviation Thread - August 2019

They're buying more 787s anyway, so that will take up some staff with a reasonably small amount of retraining. Presumably a reasonable amount of the 787crew are qualified (though lapsed) on the A320 as that will have been the training pathway since the decline in 737s.

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by Some1Somewhere
Sat Jun 15, 2019 8:23 am
Forum: Civil Aviation
Topic: Is regulatory approval required for livery changes?
Replies: 59
Views: 7703

Re: Is regulatory approval required for livery changes?

Even NZ's ones aren't totally black. As far as heat absorption they likely are, but there's still a lot of high-contrast lettering and logos high up.

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by Some1Somewhere
Sat Jun 15, 2019 5:37 am
Forum: Civil Aviation
Topic: New Zealand Aviation Thread - June 2019
Replies: 290
Views: 28407

Re: New Zealand Aviation Thread - June 2019

They'd have major runway length issues even if it did have the range, right?

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by Some1Somewhere
Sat Jun 08, 2019 12:52 am
Forum: Civil Aviation
Topic: Boeing 777X Testing Thread - 2019
Replies: 883
Views: 206533

Re: Boeing 777X Testing Thread - 2019

“During a factory test an engine gave us a signal about its health. We had an anomaly in the compressor and we halted the run.”, according GE. From what I hear that translates to seperated high pressure blades. But kudos GE, nice spin. "Signal about its health" :D If a GE9X lost a fan bla...

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by Some1Somewhere
Fri Jun 07, 2019 9:41 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 387320

Re: Boeing 737MAX Grounded Worldwide Q2 2019

But Boeing Guy, supposedly a Boeing employee, who never worked on the MAX project, seems to identify a Boeing supervillain in the 'grandfathering too far' thread. Any thoughts? Are you sure your aren't just projecting your own ideas onto another member? I've seen no claims that a Boeing employee(s)...

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by Some1Somewhere
Wed Jun 05, 2019 11:23 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 387320

Re: Boeing 737MAX Grounded Worldwide Q2 2019

It seems like the EFCU would be the correct way to permanently and transparently fix the problem. It's already adjusting stick forces depending on all the same variables MCAS is I think? But I'm guessing lead times on a new hydromechanical computer are pretty long, and after the whole 737 rudder iss...

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by Some1Somewhere
Mon Jun 03, 2019 6:40 am
Forum: Civil Aviation
Topic: Updated, confirmed - Air NZ picks Boeing for wide-body order
Replies: 292
Views: 54156

Re: Updated, confirmed - Air NZ picks Boeing for wide-body order

From the above article: At Toulouse-Blagnac Airport, I belted into the left seat of the second A350-900, MSN002, with Airbus chief test pilot Peter Chandler in the right seat and Christian Norden on the jump seat as safety pilot. MSN002 is unrepresentatively heavy , loaded with test equipment and wi...

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by Some1Somewhere
Sat May 11, 2019 11:53 am
Forum: Civil Aviation
Topic: Something wrong with Boeing's safety culture?
Replies: 291
Views: 35753

Re: Something wrong with Boeing's safety culture?

The most salient quote from the 60 minutes report for me is: "The Boeing whistleblower who is working with the FBI confirmed that making the MCAS flight control system reliant on only one sensor was a deliberate decision to avoid the need for expensive LEVEL D or flight simulator training. &qu...

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by Some1Somewhere
Sat Apr 27, 2019 11:41 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 719701

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

That one appears to be a manufacturing defect, but it's not hard to imagine an AOA vane where the vane assembly is separate/separable from the electronic pickup, and they can be replaced separately. I don't know whether the 737's ones are like this or are a single unit. Or someone may have 'serviced...

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by Some1Somewhere
Mon Apr 22, 2019 8:38 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 719701

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

One option would be restore the NG configuration of cutout switches, with one disabling just the FCC (A/P, STS, MCAS) inputs and one disabling the whole system. That way, electric trim is still available in the event of an FCC issue, be it persistent MCAS, an STS failure, or any other issue. This c...

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by Some1Somewhere
Mon Apr 22, 2019 7:08 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 719701

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

It is not a suggestion. It explicitly says to use the main electric trim. I don't know how much more clear it could be. It may be clear to you and others, but it could definitely could have been written to be more clear. ET302 did use Electric Trim before Stab Trim Cutout. They just didn't use it e...

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by Some1Somewhere
Fri Apr 19, 2019 10:58 am
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 719701

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

The Russians (and people with a GPS logger on their truck's dashboard) really like messing with GPS signals. That said, actual exact position isn't really necessary. Gyroscopic measurements are more than accurate enough - which is called an ADIRU. The issue with both of these is they aren't affected...

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by Some1Somewhere
Sun Apr 07, 2019 12:22 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 719701

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

Wow. Can’t believe I have to explain in such detail. The Mcas issue started when flaps were retracted. One of the basic rules of flying is if you take an action and the plane doesn’t like it undo said action. The IAS problems started immediately after take off and the MCAS problems where flaps were...

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by Some1Somewhere
Sun Jan 06, 2019 11:18 am
Forum: Travel, Polls & Preferences
Topic: Gratuity for Flight attendants
Replies: 54
Views: 5831

Re: Gratuity for Flight attendants

Tipping also has the disadvantage that it can be unreliable. You might make lots one week then the next is a complete loss. And I suspect the people living paycheck to paycheck are the same that are on lower wages. Plus, there's the tax argument: Far fewer tips are reported than are taken, as it's b...

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by Some1Somewhere
Fri Jan 04, 2019 3:02 pm
Forum: Travel, Polls & Preferences
Topic: Gratuity for Flight attendants
Replies: 54
Views: 5831

Re: Gratuity for Flight attendants

https://www.businessinsider.com.au/frontier-airlines-asking-passengers-to-tip-cabin-crew-2019-1?r=US&IR=T It appears this is only when being upsold stuff (drinks, food) onboard anyway - they are not just wandering around the cabin with it. I think not much more ridiculous than tipping everyone e...

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by Some1Somewhere
Wed Jan 02, 2019 1:43 pm
Forum: Civil Aviation
Topic: Electric planes: the state of the art
Replies: 260
Views: 17586

Re: Electric planes: the state of the art

The PW127M is probably around 30% efficient from fuel to air displacement, not shaft. Get your facts right. Gas turbines on aircraft are the most efficient gas turbines as they benefit from many advantages that land-based gas turbines do not benefit from. One of the many advantages is that even the...

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by Some1Somewhere
Fri Dec 28, 2018 5:35 am
Forum: Civil Aviation
Topic: Electric planes: the state of the art
Replies: 260
Views: 17586

Re: Electric planes: the state of the art

Lead-acid batteries already have an upwards of 95% recycling rate. I wouldn't be surprised if that's better than airframes currently. Lithiums aren't there yet, which looks largely to be down to the present small size and varied chemistries of most consumer lithium batteries. With fifty-ton-plus bat...

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by Some1Somewhere
Mon Dec 24, 2018 11:38 pm
Forum: Civil Aviation
Topic: Gatwick drone closures
Replies: 547
Views: 70339

Re: Gatwick drone closures

The reports of drone sightings started late at night, so that and with no aircraft movements to see the next day is why no airliner buffs were around to help with enquiries. That is too simplistic an answer. Did Gatwick announce it would be closed for the entire day. On any of the days? I don't rec...

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by Some1Somewhere
Sat Dec 22, 2018 1:06 pm
Forum: Civil Aviation
Topic: Gatwick drone closures
Replies: 547
Views: 70339

Re: Gatwick drone closures

Perhaps it's because the people responsible for the Drones live closer to Gatwick rather than Heathrow. Sussex Police have arrested two individuals relating to these Drone incidents so we might get more details about who they are and their actual intentions. I've just been watching it on the BBC ne...

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by Some1Somewhere
Sat Dec 22, 2018 2:10 am
Forum: Civil Aviation
Topic: The solution to drone safety issues
Replies: 64
Views: 6227

Re: The solution to drone safety issues

These video suggests it is technologically possible to force a rogue drone to land by aiming at it https://www.youtube.com/watch?v=X27-2WDIZR0 https://www.facebook.com/story.php?story_fbid=1901808766525433&id=592308557475467 That's just a targeted jammer. The FCC will still take you to the clea...

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by Some1Somewhere
Sat Dec 15, 2018 2:11 am
Forum: Non-Aviation
Topic: Climate Change And Airlines
Replies: 133
Views: 8605

Re: Climate Change And Airlines

Yes, of course they pollute. Consider how many tons of fuel are loaded into them. However, it's likely to see other areas get targeted first - energy production, ground transport, heating, agriculture & industry etc. Because of the weight restrictions, batteries aren't currently very feasible. I...

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