Search found 606 matches

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by kurtverbose
Thu Mar 23, 2023 10:10 am
Forum: Civil Aviation
Topic: Wizz Air gets a visit from the bailiffs.
Replies: 30
Views: 6870

Re: Wizz Air gets a visit from the bailiffs.

Funny how we all complain about Ryanair, Wizz, EasyJet or any other low cost airline. At the end of the day the vast majority of us is still going to choose the cheapest tariff we can get..... Still is nice to vent our frustrations though Not had problems with EasyJet. I would still fly with them. ...

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by kurtverbose
Mon Mar 20, 2023 10:12 am
Forum: Civil Aviation
Topic: Wizz Air gets a visit from the bailiffs.
Replies: 30
Views: 6870

Re: Wizz Air gets a visit from the bailiffs.

Same category as Ryanair.....I'd rather walk.

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by kurtverbose
Mon Jan 02, 2023 3:39 pm
Forum: Civil Aviation
Topic: MOM aircraft discussion - 100t to 200t MTOW
Replies: 433
Views: 60480

Re: MOM aircraft discussion - 100t to 200t MTOW

I start with the premise that the larger of two aircraft with equal efficiencies will always sell less well than the smaller. That has historically always been the case. A or B launches a MOM in the next few years. A few years later B will be needing a replacement for the 737 and A will either be up...

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by kurtverbose
Thu Dec 22, 2022 5:10 pm
Forum: Technical/Operations
Topic: A350 NPS Specs
Replies: 5
Views: 3429

Re: A350 NPS Specs

SteelChair wrote:
This is pretty impressive. Imagine in ten years having this NPS mated with an UltraFan engine that burns ~25% less fuel. The only thing lacking is the software and procedures for single pilot operation.


UltraFan burns 25% less fuel than the first generation Trent engine, not the XWB.

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by kurtverbose
Sun Nov 20, 2022 5:48 pm
Forum: Civil Aviation
Topic: Nothing new from Boeing and Airbus in the next years?
Replies: 101
Views: 18276

Re: Nothing new from Boeing and Airbus in the next years?

My point is so many factors are in flux right now, getting in place the specifications for a new model is very high risk. Further it probably is not penciling out in the cost / benefit analysis. With the crazy supply chain, the big desire is to ramp up production to that of pre-covid but that is pr...

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by kurtverbose
Wed Jun 01, 2022 7:46 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 116037

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

The court's opinion is a public document, both Airbus and Qatar are free to reference it. Selectively quoting the judge and making it out you've won the case when you've just lost is not going to endear yourself to a judge. As for the airworthiness issue, that's just laughable. Qatar has done every...

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by kurtverbose
Wed Jun 01, 2022 5:41 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 466
Views: 116037

Re: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim

The judge is likely to take a very dim view of Qatar selectively quoting his judgement in a press release. I thought this bit was interesting. Whatever else happens in this case, I now expect Qatar and Airbus to work pro-actively together to try and satisfy the [Qatari civil aviation authority] that...

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by kurtverbose
Sun Apr 10, 2022 8:24 am
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

How would one differentiate this conventionally armed system from a nuclear one? Routine spacecraft launches are announced well in advance and are thus easy to identify as non-hostile. Your proposed system I assume would not be announced in advance - it’ll look like a nuke. Non starter on this poin...

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by kurtverbose
Sun Apr 10, 2022 8:21 am
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

Your rocket system would have one role only, strategic strikes against fixed targets, and the military already has something for that. They're not going to spend $200 billion in development cost just to save $1 million per rocket launch. You keep repeating that but it's not true. You could hit movi...

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by kurtverbose
Sun Apr 03, 2022 5:51 pm
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

Yeah it's one thing to land on a cheap autonomous barge in calm weather and another to land on the helipad of a multirole ship under all circumstances. Not to mention the risk of injuries to the crew, or even the loss of the entire ship, if something goes wrong. How many boosters has SpaceX lost on...

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by kurtverbose
Sun Apr 03, 2022 11:21 am
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

I'm not sure what the application would be. Bombers are required anyway for their ability to loiter as well as their ability to identify and track moving targets. You're not going to replace them. Already countered. You use drones or satellites or troops on the ground for targeting, including movin...

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by kurtverbose
Thu Mar 31, 2022 8:21 am
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

There's a big difference between acquiring a target with a SAM and the maximum intercept range. The further away they pick it up, the more accurately they can intercept it. The BE-4 runs on purified methane, not regular natural gas, and performance margin isn't the issue. Not working when the fuel ...

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by kurtverbose
Wed Mar 30, 2022 4:49 pm
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Re: Rapidly Reusable Rockets in the Military

A bomber that you can see on radar 500 miles away would probably not get to target or return home to be reused very often. It takes more than a few trucks of fuel to fill a Starship for the return trip, and the methane and LOX need to be much higher grade than normal gas plants can put out. But the...

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by kurtverbose
Wed Mar 30, 2022 11:15 am
Forum: Military Aviation & Space Flight
Topic: Rapidly Reusable Rockets in the Military
Replies: 14
Views: 2514

Rapidly Reusable Rockets in the Military

I've heard the USAF are interested in Starship for delivering payloads anywhere in the world in minutes, but I've not heard about any other interest. If you have a stage 1 rocket that can deliver a hypersonic payload over some distance, then fly back for re-fuelling and re-arming in a short period o...

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by kurtverbose
Tue Mar 29, 2022 11:37 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 399
Views: 78611

Re: Updated: Switzerland deciding to buy F-35A fighter jets

johns624 wrote:
How about the Luftwaffe Tornados? They're older than dirt.


How old are the Swiss F-5's?

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by kurtverbose
Sun Mar 27, 2022 10:10 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 399
Views: 78611

Re: Updated: Switzerland deciding to buy F-35A fighter jets

Near where I live. Shame I haven't seen them flying over yet.

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by kurtverbose
Sun Mar 27, 2022 9:20 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 605
Views: 106020

Re: SpaceX - Tests, Launches, Developments - 2022

At this very late stage, it would be extremely difficult for ULA to switch engines. For better or for worse, they are stuck with Blue Origin unless they want to completely scrap everything they've done up until now. No doubt it's very late for a major engineering change, but I'm not sure they would...

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by kurtverbose
Fri Mar 25, 2022 7:49 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 605
Views: 106020

Re: SpaceX - Tests, Launches, Developments - 2022

Gwynne Shotwell is on record as saying SpaceX will launch a payload for any customer at list price, regardless if they are a competitor. I look at the very late BE-4 engine for ULA and think would ULA go to SpaceX as an alternative supplier, and if they did would SpaceX sell to them? SpaceX providi...

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by kurtverbose
Fri Mar 25, 2022 5:07 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 605
Views: 106020

Re: SpaceX - Tests, Launches, Developments - 2022

Interestingly OneWeb are using SpaceX even though they are the competition with Starlink. But I guess there aren't many rides in town! Gwynne Shotwell is on record as saying SpaceX will launch a payload for any customer at list price, regardless if they are a competitor. I look at the very late BE-...

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by kurtverbose
Fri Jan 21, 2022 5:41 pm
Forum: Civil Aviation
Topic: Qatar and Airbus Legal Dispute Continues - Airbus Revokes A321 Order
Replies: 435
Views: 66977

Re: Qatar and Airbus Legal Dispute Continues - Airbus Revokes A321 Order

I'll put it back to you: what narrowbody routes does Qatar fly that it couldn't do with a MAX9? Sorry to state the bleeding obvious, but quite clearly there are no current Qatar narrowbody routes that couldn't be done with the Max9 because no current narrowbody apart from the LR has these capabilit...

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by kurtverbose
Fri Jan 21, 2022 7:16 am
Forum: Civil Aviation
Topic: Qatar and Airbus Legal Dispute Continues - Airbus Revokes A321 Order
Replies: 435
Views: 66977

Re: Qatar and Airbus Legal Dispute Continues - Airbus Revokes A321 Order

so I guess this is getting revived https://www.airguide.info/wp-content/uploads/2021/05/Qatar-Airways-snubs-the-B737-MAX-A321XLR-and-A380.jpg source: https://www.airguide.info/qatar-airways-snubs-the-b737-max-a321xlr-and-a380/ What version of the 737 can they get to replace the A321LR?

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by kurtverbose
Thu Nov 25, 2021 11:28 am
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2021
Replies: 482
Views: 77081

Re: SpaceX - Tests, Launches, Developments - 2021

Who thinks SpaceX will beat NASA to the moon? I'm 99% certain they will. It would definitely bruise a few egos. It will make it clear to the world that SpaceX has exceeded NASA/US government in terms of space capability. If you mean orbiting it then yes I think they will. Do SpaceX have any plans t...

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by kurtverbose
Thu Oct 21, 2021 1:12 pm
Forum: Civil Aviation
Topic: Plane Dumps Human Waste On Man and His Yard
Replies: 28
Views: 6394

Re: Plane Dumps Human Waste On Man and His Yard

Ziyulu wrote:
Did you know many trains around the world still dump the waste on its tracks?


Not many people live on railway tracks though do they!

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by kurtverbose
Thu Jan 28, 2021 1:45 pm
Forum: Civil Aviation
Topic: Boeing 777X Testing/Production Thread - 2021
Replies: 891
Views: 210599

Re: Boeing 777X Testing/Production Thread - 2021

The 777x was always a bad idea. It was too big. It was only able to compete because of new engines. An update of the A350 engines would make the 777x a modern day A340-600. It's cost them almost as much as a new aircraft now, and I think they will struggle to sell more than 300. It would have been m...

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by kurtverbose
Wed Jan 20, 2021 1:29 pm
Forum: Technical/Operations
Topic: Why was N106US the a320 involved in the hudson river ditching never repaired?
Replies: 30
Views: 6973

Re: Why was N106US the a320 involved in the hudson river ditching never repaired?

Check out the state of the aircraft and how much further damage was done when it was lifted. No was was this ever going to be an 'economic repair'.

https://www.baaa-acro.com/crash/crash-airbus-a320-new-york

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by kurtverbose
Tue Aug 11, 2020 12:14 pm
Forum: Technical/Operations
Topic: Is the RB211 finished on widebodies?
Replies: 13
Views: 3014

Re: Is the RB211 finished on widebodies?

Most of the dedicated 744F's powered by RB211 engines are still active, Most were original purchased by Cathay and Cargolux. Cargolux has 10 RR RB-211 powered 744F aircraft operational. Silkway West Airlines has three RB211 powered 744F's operational. Sky Gates Cargo Airlines has two RB211 powered ...

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by kurtverbose
Tue Aug 11, 2020 7:48 am
Forum: Technical/Operations
Topic: Is the RB211 finished on widebodies?
Replies: 13
Views: 3014

Is the RB211 finished on widebodies?

BA have retired their fleet of 747's and 767's. So have Qantas. Is anyone else still flying RB211's on a widebody? If not, it's been a bit over 50 years from conception to out of service, which even with the various derivatives is quite a long time. It's an engine that almost killed RR, but by the s...

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by kurtverbose
Tue Mar 10, 2020 8:17 am
Forum: Civil Aviation
Topic: 25 Years of the RR Trent
Replies: 42
Views: 7181

Re: 25 Years of the RR Trent

The T500 was not of poor quality. It was just a limited market on a 4 engine plane vs the 777 and sales were low. The engine itself performed to spec. This from lowbank who works at RR: - I am also interested in the real use of a a340 as I worked on lots of T500 parts. Shame a late design change sc...

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by kurtverbose
Mon Mar 09, 2020 5:52 pm
Forum: Civil Aviation
Topic: 25 Years of the RR Trent
Replies: 42
Views: 7181

Re: 25 Years of the RR Trent

GE effectively paid for exclusivity on the later 777 versions. That was financial not market. And it meant RR was off the platform. However way you look at it the T800 just wasn't as good a return for RR as the T700 was. RR bet on the A340 and the T500 and both the aircraft and the engine were lemo...

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by kurtverbose
Mon Mar 09, 2020 11:01 am
Forum: Civil Aviation
Topic: 25 Years of the RR Trent
Replies: 42
Views: 7181

Re: 25 Years of the RR Trent

You are aware that on the first generation of 777 (prior to GE exclusivity), RR (with the T800) gained the largest share of the market? 777-200 -300 - 200ER: RR 40% PW 30% GE 30% "Not great in the market"? What does that say about the (original) GE90 or the PW4000? Yes, I am aware of that...

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by kurtverbose
Mon Mar 09, 2020 9:13 am
Forum: Civil Aviation
Topic: 25 Years of the RR Trent
Replies: 42
Views: 7181

Re: 25 Years of the RR Trent

What's interesting considering they're a family of engines is the huge variance in quality and market success. T700 - great quality, big success T800 - great quality, not great in the market T500 - poor quality, poor in the market T900 - ok quality, ok in the market T1000 very suspect quality, medio...

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by kurtverbose
Sat Feb 22, 2020 1:24 pm
Forum: Civil Aviation
Topic: 777X vs A350 CASM
Replies: 259
Views: 34369

Re: 777X vs A350 CASM

You have been caught lying multiple times on this thread to bring the A350 into a bad light. Even when you do claim to quote wiki, you make outright lies. I was grateful for your advice a while ago about the user control panel ignore list functionality. I have two posters in my list. I think you ca...

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by kurtverbose
Wed Feb 19, 2020 12:11 pm
Forum: Civil Aviation
Topic: Why wouldn't the Trent 1000-TEN problems also show up in the Trent XWB?
Replies: 46
Views: 8854

Re: Why wouldn't the Trent 1000-TEN problems also show up in the Trent XWB?

All I can say to you guys is, as I understand it. We are given a fan diameter and a power output required, SFC etc. Normally the power request goes up but the fan size stays the same. Go figure what happens. Going back to the XWB, as I remember it. The initial request was around 80k and 90k thrust ...

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by kurtverbose
Thu Feb 13, 2020 12:50 pm
Forum: Technical/Operations
Topic: Fuel Burn for A320
Replies: 21
Views: 16015

Re: Fuel Burn for A320

WIederling wrote:

Yup auto facepalm. :-))
( why would anyone do a comparative list CEO / NEO tagged Mission 1, Mission 2, ... and then use different Missions length? )


That would be an apples to apples comparison. We never do that on a.net.

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by kurtverbose
Wed Feb 12, 2020 12:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding, General Discussion Thread, February 2020
Replies: 708
Views: 105203

Re: Boeing 737MAX Grounding, General Discussion Thread, February 2020

Interesting comments on simulators from Boeing's VP of Marketing: One key element of returning the jet to service is training pilots on simulators. While countries like India have advised Boeing to set up simulators locally, Tinseth on Tuesday said existing equipment should cover all training requi...

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by kurtverbose
Tue Feb 11, 2020 9:37 am
Forum: Civil Aviation
Topic: Airbus - blended wing aircraft code name Maveric
Replies: 104
Views: 17118

Re: Airbus - blended wing aircraft code name Maveric

Never mind the windows, what is interesting about this is they talk about it as a narrow body replacement. All blended wing ideas that I've seen so far have been very big planes. I didn't know a blended design could work in small sizes? Also, this is the problem with Boeing's NSA - some really innov...

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by kurtverbose
Mon Feb 10, 2020 8:44 am
Forum: Civil Aviation
Topic: Boeing CEO: NMA will "start with a clean sheet of paper again"
Replies: 1890
Views: 207996

Re: Boeing CEO: NMA will

https://www.youtube.com/watch?v=evd_WJA0gvY
-->

morrisond wrote:
Kevlar does a pretty good job at stopping bullets at a pretty light weight. Before that it was steel plates (The Good, The Bad and The Ugly).


Wrong Spaghetti Western. That was 'A Fistful of Dollars'.

https://www.youtube.com/watch?v=evd_WJA0gvY

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by kurtverbose
Sun Feb 09, 2020 2:25 pm
Forum: Technical/Operations
Topic: Turbofan Engine
Replies: 25
Views: 3215

Re: Turbofan Engine

@ SAAFNAV. I completely agree with you.

To the OP, if you want to know how a turbofan works go and stick your head inside of one.

I will give you this advice though, as wikipedia doesn't mention it, don't stick your head inside while it's running!

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by kurtverbose
Fri Jan 24, 2020 8:13 pm
Forum: Civil Aviation
Topic: Boeing 777-9 first flight 25 January 2020
Replies: 970
Views: 92259

Re: Boeing 777-9 first flight 24 January 2020 (weather permitting)

If you are being chased by a pack of taxidermists, do not play dead.

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by kurtverbose
Fri Jan 24, 2020 8:05 pm
Forum: Civil Aviation
Topic: Boeing 777-9 first flight 25 January 2020
Replies: 970
Views: 92259

Re: Boeing 777-9 first flight 24 January 2020 (weather permitting)

Just had a check up at the doctors.

He said "Don't eat anything fatty"

I said "Like bacon or cheeseburgers.?"

He replied "No fatty, don't eat anything..."

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by kurtverbose
Fri Jan 24, 2020 7:57 pm
Forum: Civil Aviation
Topic: Boeing 777-9 first flight 25 January 2020
Replies: 970
Views: 92259

Re: Boeing 777-9 first flight 24 January 2020 (weather permitting)

N14AZ wrote:
So does anybody know a good joke? I mean, to bridge the time?


I took my Granddad to one of those Spas where they have the little fish that will nibble away any dead skin ... it cost over £100 but it was cheaper than a funeral.

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by kurtverbose
Wed Jan 15, 2020 12:25 pm
Forum: Civil Aviation
Topic: Airbus and Boeing 2019 Orders
Replies: 486
Views: 147400

Re: Airbus and Boeing 2019 Orders

Widebody: Airbus - 217 gross / 51 net Boeing - 177 gross / 96 net In a softish widebody market, neither set of numbers is stellar, but Boeing's net was nearly double that of Airbus. Let's look at the individual programmes - firstly for Boeing. The 767 is a freighter/military programme. Great that i...

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by kurtverbose
Tue Jan 14, 2020 5:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding News and Reference Thread [Ungrounded by FAA 18NOV2020]
Replies: 373
Views: 567895

Re: Boeing 737MAX Grounding News and Reference Thread 2020

Interesting article from Leeham news.

Boeing likely faces an extended timeline to clear its inventory of 400 737 MAXes. LNA estimates it will be well into 2022 before these new-production airplanes are delivered to customers.

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by kurtverbose
Tue Jan 14, 2020 11:31 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounding News and Reference Thread [Ungrounded by FAA 18NOV2020]
Replies: 373
Views: 567895

Re: Boeing 737MAX Grounding News and Reference Thread 2020

GE Aviation is laying off 70 temporary workers from its site in Bromont, Quebec, citing Boeing’s decision to halt 737 Max production as one factor leading to the cuts.

Flight Global article.

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by kurtverbose
Thu Jan 09, 2020 8:59 pm
Forum: Technical/Operations
Topic: Piaggio P.180 Avanti
Replies: 43
Views: 9465

Re: Piaggio P.180 Avanti

As I understand it, in this configuration the main wing and the engines can be far back, so you don't get a wing spar in the cabin, and the noise is back there. That would probably be even more the case if they just had a cannard and main wing. I heard from an instructor (so take this with a grain ...

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by kurtverbose
Tue Dec 24, 2019 8:29 am
Forum: Technical/Operations
Topic: Piaggio P.180 Avanti
Replies: 43
Views: 9465

Re: Piaggio P.180 Avanti

Starlionblue wrote:
As I understand it, in this configuration the main wing and the engines can be far back, so you don't get a wing spar in the cabin, and the noise is back there.


That would probably be even more the case if they just had a cannard and main wing.

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by kurtverbose
Mon Dec 23, 2019 3:35 pm
Forum: Technical/Operations
Topic: Piaggio P.180 Avanti
Replies: 43
Views: 9465

Re: Piaggio P.180 Avanti

I must admit I don't understand the Avanti. Ok, so all the horizontal surfaces give lift, but there are 3 of them. That's 6 wing ends - more than a biplane. Why doesn't it just have a cannard like the Beechcraft Starship (I know that wasn't a successful plane)?

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by kurtverbose
Fri Nov 22, 2019 10:56 am
Forum: Civil Aviation
Topic: Engine efficiency-what are the limits?
Replies: 64
Views: 9064

Re: Engine efficiency-what are the limits?

The current limits i think are to do with the moving parts and the engine cycle used. The ultimate jet engine would have no moving parts, and would not burn fuel in the engine. Experiments with high voltage electric charge of air has started as a propulsive force to sustain flight. While in the ver...

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by kurtverbose
Tue Nov 19, 2019 12:08 pm
Forum: Civil Aviation
Topic: A330Neo - 2019 a great year
Replies: 332
Views: 49673

Re: A330Neo - 2019 a great year

Both RR and GE wanted exclusivity on the A330neo because they did not want to fight over the frame when they had both spent billions on the far over budget T1000/GEnx programs (often overlooked here because of focus on Boeing) that they would probably never get back from 787 sales alone. They are/w...

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by kurtverbose
Tue Nov 19, 2019 11:55 am
Forum: Civil Aviation
Topic: A330Neo - 2019 a great year
Replies: 332
Views: 49673

Re: A330Neo - 2019 a great year

400 frames deliveries would be financial a roaring success. In regards to RR, it is not a complete new engine, but an engine based on components out of the building kit. 800 engines plus spares would be dream come true for RR. Quite correct - and one reason both GE and RR insisted on exclusivity - ...

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