Search found 4528 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 91
by TheSonntag
Wed Jun 16, 2021 1:51 pm
Forum: Civil Aviation
Topic: Pratt & Whitney - Future widebody engine?
Replies: 28
Views: 3704

Re: Pratt & Whitney - Future widebody engine?

Going back to the early 1970s P&W was the only option on the 747-100 with the JT9D, they also had the JT8D on the 727,737 and DC-9 and the JT3D on the developed versions of the 707 and DC-8 - GE and RR had a few niche products (e.g. CV990, One-Eleven etc.) but P&W almost owned the commercia...

Jump to post
by TheSonntag
Mon Jun 14, 2021 2:47 pm
Forum: Civil Aviation
Topic: Steven Udvar-Hazy: 737 needs replacement
Replies: 144
Views: 15092

Re: Steven Udvar-Hazy: 737 needs replacement

Both A320 and 737 are outdated designs. In fact, so is the A350, because all those designs are still based on Jet A fueled technology with 30% efficiency. Even the best gas turbines are just giving modest improvements. It is certainly possible to replace fossil Jet A with synthetic, green Jet A, but...

Jump to post
by TheSonntag
Fri Jun 11, 2021 12:15 pm
Forum: Civil Aviation
Topic: Airbus focus is on evolving existing jet models, CEO says
Replies: 129
Views: 17451

Re: Airbus focus is on evolving existing jet models, CEO says

This is not surprising, but I tend to believe the chances were never better for a "Hydrogen-Tesla" Start Up in aviation.

Jump to post
by TheSonntag
Mon May 24, 2021 9:00 am
Forum: Non-Aviation
Topic: Belarus intercepts Ryanair flight from ATH to VNO
Replies: 261
Views: 26897

Re: Belarus intercepts Ryanair flight from ATH to VNO

A good example for what appeasement leads to. This one requires a coordinated, very Hard political reaction.

Jump to post
by TheSonntag
Thu Apr 29, 2021 8:35 am
Forum: Military Aviation & Space Flight
Topic: Michael Collins passes away
Replies: 7
Views: 1426

Re: Michael Collins passes away

To me, the command module pilots are heroes. I am sure they were so busy that they did not have much time to think, but leaving 2 guys behind was certainly very lonely.

He had a good life. A true hero.

Jump to post
by TheSonntag
Tue Apr 27, 2021 1:27 pm
Forum: Military Aviation & Space Flight
Topic: CRAF in Foreign countries?
Replies: 10
Views: 2021

Re: CRAF in Foreign countries?

Not in peacetimes, but Germany has laws in place in case of war: https://www.gesetze-im-internet.de/blg/BJNR008150956.html Bundesleistungsgesetz (1) Als Leistungen können angefordert werden 9. Werkleistungen, (...) ferner Verkehrsleistungen von Eigentümern oder Besitzern von Verkehrsmitteln, auch we...

Jump to post
by TheSonntag
Mon Apr 26, 2021 9:45 am
Forum: Civil Aviation
Topic: 747 Supertanker ceasing operations
Replies: 55
Views: 14790

Re: 747 Supertanker ceasing operations

I am sure the business case for such a large single-frame operation that is only operated few weeks at a time is not very good. Looking at FR24, looks like its not done any fire fighting since October, over 6-months ago! I wonder why a 747 fire fighting vehicle needs a business case. Obviously, thi...

Jump to post
by TheSonntag
Sat Apr 17, 2021 12:38 pm
Forum: Military Aviation & Space Flight
Topic: Germany retired the Bell UH-1D
Replies: 5
Views: 1240

Germany retired the Bell UH-1D

A few days ago in April 2021, Germany finally retired the Bell UH-1D after 50 (!) years of Service. In reality it was a licence built UH-1H but since the agreement said UH-1D the letter was kept. In the last years the roles were reduced. The last mission was the ICAO SAR task to search for crashed p...

Jump to post
by TheSonntag
Sat Apr 17, 2021 10:32 am
Forum: Non-Aviation
Topic: European Commission Vaccination Strategy News and Discussion Thread
Replies: 1433
Views: 83293

Re: European Commission Vaccination Strategy News and Discussion Thread

Meanwhile, German vaccination campaign is really gaining momentum after local doctors were included into the campaign. In this week alone, we had more than 3 million vaccinations in the first 5 days.

21million jabs were given so far. Biontech is seemingly very reliable with their deliveries.

Jump to post
by TheSonntag
Sat Apr 17, 2021 10:24 am
Forum: Travel, Polls & Preferences
Topic: Does the 747-8 have a useful purpose?
Replies: 19
Views: 3202

Re: Does the 747-8 have a useful purpose?

It is useful and virtually without any competition (if we ignore the AN-124) as a freighter, especially since the front loading option is vital. LH also found a rather useful niche for it, since the 777 was a bit too small for many routes in the LH network, the A380 too big, and LH had still 30 747 ...

Jump to post
by TheSonntag
Sun Apr 11, 2021 5:26 pm
Forum: Civil Aviation
Topic: 25 years ago April 11th, 1996: DUS Airport Fire
Replies: 0
Views: 990

25 years ago April 11th, 1996: DUS Airport Fire

On April 11th, 1996, there occured a huge fire at Düsseldorf Airport which killed 17 people. The terminal was torn down and rebuilt after that, with the new terminal setting new standards for fire protection. This is probably also one of the reasons why fire protection at BER airport had the importa...

Jump to post
by TheSonntag
Mon Mar 22, 2021 11:22 am
Forum: Civil Aviation
Topic: Jet fuel from waste 'dramatically lowers' emissions
Replies: 71
Views: 7651

Re: Jet fuel from waste 'dramatically lowers' emissions

I like that this thread is actually about thinking about what can be done. So we are no longer discussing IF, but HOW we get aviation greener. Unfortunately, Airbus and Boeing seem totally unambitious currently. Granted, we will need some transition time, so mixing conventional fuel with synthetic f...

Jump to post
by TheSonntag
Wed Mar 17, 2021 1:53 pm
Forum: Non-Aviation
Topic: European Commission Vaccination Strategy News and Discussion Thread
Replies: 1433
Views: 83293

Re: European Commission Vaccination Strategy News and Discussion Thread

Biontech will deliver more in Q2 than initially planned, due to their Marburg factory already producing. But this is not enough. Curevac seemingly expects market authorisation in May or June, which will make the delivery possible in July. Too late for the summer. The next two months in Germany will ...

Jump to post
by TheSonntag
Wed Mar 17, 2021 9:33 am
Forum: Civil Aviation
Topic: Jet fuel from waste 'dramatically lowers' emissions
Replies: 71
Views: 7651

Re: Jet fuel from waste 'dramatically lowers' emissions

That is all insignificant green washing, totally unambitious. What we need is synthetic fuel and hydrogen planes, and BEV planes for short range.

Jump to post
by TheSonntag
Thu Mar 11, 2021 1:52 pm
Forum: Non-Aviation
Topic: European Commission Vaccination Strategy News and Discussion Thread
Replies: 1433
Views: 83293

Re: European Commission Vaccination Strategy News and Discussion Thread

More positive news: EMA recommends the approval of the Jonson & Johnson / Janssen Vaccine. Deliveries are scheduled to start in April. They are looking into the Sputnik V data, as well, but this will take time. Curevac seemingly has very promising initial results, but is still some months away f...

Jump to post
by TheSonntag
Thu Mar 11, 2021 1:48 pm
Forum: Technical/Operations
Topic: what kind of process does a company have to do when she's working on a new livery?
Replies: 25
Views: 2683

Re: what kind of process does a company have to do when she's working on a new livery?

A lot of backoffice departments (the guys who are always suspected by the "front line personnel" to not being working at all) will be involved. First, the technical department will come up with guidelines on which technical rules have to be met. Then the marketing department will make surv...

Jump to post
by TheSonntag
Thu Mar 11, 2021 1:36 pm
Forum: Technical/Operations
Topic: Overloading Airliners - easily possible?
Replies: 13
Views: 2476

Re: Overloading Airliners - easily possible?

In General Aviation, it is quite easily possible to fly an overloaded airplane. Especially in typical trainers like the C172, if you put 4 people in it and fill up the fuel, the plane is very soon above the maximum take off weight of 1158 KG. The C172 and PA28 are really 3-person aircraft with 4 se...

Jump to post
by TheSonntag
Thu Mar 11, 2021 1:18 pm
Forum: Civil Aviation
Topic: Tecnam, Rollys-Royce & Wideroe to develop all-electric P-Volt aircraft for EIS 2026
Replies: 3
Views: 588

Re: Tecnam, Rollys-Royce & Wideroe to develop all-electric P-Volt aircraft for EIS 2026

Interesting. I believe these developments have the potential of being disruptive. We will have to see how it can be adopted to larger airplanes, but the reluctant reactions from Airbus and Boeing let me wonder whether there might be a chance for a start up to come up with an airplane which is disrup...

Jump to post
by TheSonntag
Mon Mar 08, 2021 3:04 pm
Forum: Technical/Operations
Topic: Overloading Airliners - easily possible?
Replies: 13
Views: 2476

Overloading Airliners - easily possible?

In General Aviation, it is quite easily possible to fly an overloaded airplane. Especially in typical trainers like the C172, if you put 4 people in it and fill up the fuel, the plane is very soon above the maximum take off weight of 1158 KG. Reading accident reports, it gets clear this is not that ...

Jump to post
by TheSonntag
Tue Mar 02, 2021 1:23 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 72
Views: 11259

Re: SLS / Orion - Tests, Launches, & Developments

SLS was hated since its beginning. Lets face it - while being a political rocket, I believe it is good that America finally has a rocket which is useful for ambitious missions. It might be that SpaceX will offer something useful, as well. But having SLS is not a bad thing since it is a capable rocke...

Jump to post
by TheSonntag
Wed Feb 24, 2021 12:24 pm
Forum: Civil Aviation
Topic: Eurowings Discover the new LH Group airline
Replies: 125
Views: 25838

Re: Eurowings Discover the new LH Group airline

I flew EW from DUS to Ibiza in 2019 and this was by far the worst flight I ever had. Paying the employees even less (1400 is 1085 net, which is rediculous in cities like Düsseldorf) is certainly not improving their product.

Jump to post
by TheSonntag
Tue Feb 23, 2021 3:20 pm
Forum: Travel, Polls & Preferences
Topic: Lufthansa DC-10 routes
Replies: 21
Views: 2479

Re: Lufthansa DC-10 routes

https://www.youtube.com/watch?v=IjU1_yvfObA
-->

In 1994, they flew to PEK. You can see that on this very interesting documentation:

https://www.youtube.com/watch?v=IjU1_yvfObA

Jump to post
by TheSonntag
Tue Feb 23, 2021 11:04 am
Forum: Civil Aviation
Topic: 20 Years ago- Last MD-11 delivered to Lufthansa Cargo
Replies: 36
Views: 6122

Re: 20 Years ago- Last MD-11 delivered to Lufthansa Cargo

So yes, it IS a high number of accidents. However, also the A320 suffered from accidents in the beginning which were attributable to lack of experience with the design. Better training obviously helped the safety rate of the MD-11, which improved in the latest years. Also, carriers like KLM flew the...

Jump to post
by TheSonntag
Mon Feb 22, 2021 2:45 pm
Forum: Civil Aviation
Topic: 20 Years ago- Last MD-11 delivered to Lufthansa Cargo
Replies: 36
Views: 6122

Re: 20 Years ago- Last MD-11 delivered to Lufthansa Cargo

Corona helped the extension of the MD-11 life. Apart from that, a rather questionable design which found a niche, but which certainly fell far behind the A340 and especially the B777.

Jump to post
by TheSonntag
Wed Feb 17, 2021 4:40 pm
Forum: Civil Aviation
Topic: Boeing CEO's Comments On Their Next Airplane
Replies: 2145
Views: 224306

Re: Boeing CEO's Comments On Their Next Airplane

I did not read all pages, but to me doing a clean sheet design with a kerosene-burning plane seems a very conservative design. I believe this is rather disappointing. Granted, the hydrogen infrastructure isn't there yet. But the design should then at least be designed to be easily derivable to hydr...

Jump to post
by TheSonntag
Wed Feb 17, 2021 4:12 pm
Forum: Civil Aviation
Topic: Boeing CEO's Comments On Their Next Airplane
Replies: 2145
Views: 224306

Re: Boeing CEO's Comments On Their Next Airplane

I did not read all pages, but to me doing a clean sheet design with a kerosene-burning plane seems a very conservative design. I believe this is rather disappointing. Granted, the hydrogen infrastructure isn't there yet. But the design should then at least be designed to be easily derivable to hydro...

Jump to post
by TheSonntag
Fri Jan 29, 2021 1:07 pm
Forum: Civil Aviation
Topic: Updated: Ju-52 crash from 2018 in Switzerland - Final accident report published
Replies: 191
Views: 71652

Re: Ju-52 crash from 2018 in Switzerland - Final accident report published

I read the report. It is a quite disturbing read, especially since they got photos from inside the airplane which they could extract from mobile phones retrieved after the crash. The depth of the analysis is very impressive, and they are very strict on the regulator, as well. Generally, the flight c...

Jump to post
by TheSonntag
Thu Jan 28, 2021 10:19 am
Forum: Civil Aviation
Topic: A322 may have new engine, wings and 12 extra seats
Replies: 146
Views: 24329

Re: A322 may have new engine, wings and 12 extra seats

Clearly an A322 even with new wings would be a rather evolutionary development. I wonder when Airbus and the industry in total will go to a hydrogen-based entirely new technology, and whether this will mean completely clean sheet new designs, or just H2 tanks in conventional airplanes. WIth that in ...

Jump to post
by TheSonntag
Tue Jan 26, 2021 10:18 am
Forum: Civil Aviation
Topic: Eurowings Discover the new LH Group airline
Replies: 125
Views: 25838

Re: Eurowings Discover the new LH Group airline

EW is already appalling. Never had such a bad flight than with EW. I still do not believe this is the way forward. I understand the issues that you are closing in on a commodity product with little means of differentiation, but nevertheless I expected more.

Jump to post
by TheSonntag
Wed Jan 20, 2021 1:41 pm
Forum: Non-Aviation
Topic: Brexit part XI: 2021
Replies: 648
Views: 35118

Re: Brexit part XI: 2021

The (unfortunately not so) funny thing about Brexit is that virtually everything the "scarer" said became true. It is such a shame simply because a weak UK weakens the EU and also NATO. The UK is always welcome to rejoin the EU, though. The doors remain open. No doubt there will also come ...

Jump to post
by TheSonntag
Fri Jan 15, 2021 7:20 am
Forum: Non-Aviation
Topic: Republican Voters
Replies: 34
Views: 2014

Re: Republican Voters

Thank you for your replies.

Jump to post
by TheSonntag
Wed Jan 13, 2021 1:38 pm
Forum: Non-Aviation
Topic: Republican Voters
Replies: 34
Views: 2014

Republican Voters

The US election systems "Winner takes it all" approach basically requires to decide whether you vote for GOP or Democrats. I am certain there are quite a few GOP voters who condemn Trump, but who disapprove Democrat policies. While I would not have voted for Republican i such a situation, ...

Jump to post
by TheSonntag
Mon Jan 11, 2021 12:50 pm
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

Re: VFR with Airliners

Well, the SERA rules differentiate - if your plane has no transponder, you do not have to use it, just stay out of TMZ, C, D or other airspace. But if you have a transponder, it MUST be on. The checklist of our C172s all state: Transponder to ALT in the before takeoff checklist. See and Avoid is sti...

Jump to post
by TheSonntag
Thu Jan 07, 2021 4:51 pm
Forum: Non-Aviation
Topic: Pro-Trump Riot in US Capital Building
Replies: 987
Views: 54972

Re: Pro-Trump Riot in US Capital Building

"There was no non-trump protesters, just insurgents."

I just meant in the streets of Washington. Was there any counter protestors somewhere? Or did they stay at home due to Covid?

Jump to post
by TheSonntag
Thu Jan 07, 2021 4:32 pm
Forum: Non-Aviation
Topic: Pro-Trump Riot in US Capital Building
Replies: 987
Views: 54972

Re: Pro-Trump Riot in US Capital Building

The reaction by the police force was correct. If they would have been more aggressive it could have been the start of a civil war. We rarely agree, but here we do. I even guess that Trump quietly hoped an escalation would lead to many killed protestors, with more riots happening. Were there any Ant...

Jump to post
by TheSonntag
Thu Jan 07, 2021 4:27 pm
Forum: Non-Aviation
Topic: Pro-Trump Riot in US Capital Building
Replies: 987
Views: 54972

Re: Pro-Trump Riot in US Capital Building

"The whole point here is that one leader and also his party told their supporters that if they fail on the democratic way, they can always push through anyway by sheer force, disregarding what is true and disregarding any democratic rules. That is massively corrosive to any democracy, and that ...

Jump to post
by TheSonntag
Thu Jan 07, 2021 3:52 pm
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

Re: VFR with Airliners

Yes, the question for is is just - is it worth it. What I have heard and read so far (including the great book "how and why pilots die"), from a pure safety perspective, it is a huge gap forward. From a pure practical point of view it is totally unnecessary for me. I will only fly club mac...

Jump to post
by TheSonntag
Thu Jan 07, 2021 2:20 pm
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

Re: VFR with Airliners

"I remember getting my instrument rating and thinking, "I can't believe they let me fly solo on a PPL." :D" Honestly, I still ask myself what they were drinking in June when they let my fly alone :D. But the plane survived and I am here to write, so it seems I did something right...

Jump to post
by TheSonntag
Thu Jan 07, 2021 12:41 pm
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

Re: VFR with Airliners

Thank you all for your replies. Especially when approaching 24 in Dortmund, the approach lies between Arnsberg/Menden airfield and my home airfield EDLH (Hamm) . Since the Möhnesee (even the non germans here in the Forum know it from the dam buster raid) is a quite popular destination for short week...

Jump to post
by TheSonntag
Thu Jan 07, 2021 10:22 am
Forum: Civil Aviation
Topic: RR freezing development on the Ultrafan program
Replies: 46
Views: 10068

Re: RR freezing development on the Ultrafan program

This discussions shows, however, that modern aircraft engines are closing to the theoretical maximum. So evolutionary improvements are soon coming to an end. We soon need to design - what will be the future technology in aviation which is climate neutral? If aviation moves to synthetic Jet-A, not mu...

Jump to post
by TheSonntag
Thu Jan 07, 2021 12:29 am
Forum: Non-Aviation
Topic: Pro-Trump Riot in US Capital Building
Replies: 987
Views: 54972

Re: Pro-Trump Riot in US Capital Building

As a german, my fellow American believe me - this is how the SA behaved. It is 1933 revisited.

However, US instituitions were resilient. Maybe this was finally the one step too far for the GOP.

Jump to post
by TheSonntag
Tue Jan 05, 2021 12:12 pm
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

Re: VFR with Airliners

Thank you for your reply. In Germany, we have no IFR operations in G airspace as far as I am aware, but this is a german specific thing. In the video I saw they did a pure IFR flight until maybe 10 miles from the airport, then cancelled IFR and flew a pattern . As a passenger, I did fly VFR in a ATR...

Jump to post
by TheSonntag
Tue Jan 05, 2021 10:44 am
Forum: Technical/Operations
Topic: VFR with Airliners
Replies: 62
Views: 4986

VFR with Airliners

I am a PPL student, and all I will ever fly as a hobby is VFR. I saw some documentation that Lufthansa was landing at uncontrolled airports in the netherlands to park some 747. The flight itself was seemingly IFR, but the final stages were VFR. I would like to know from the "experts": 1. I...

Jump to post
by TheSonntag
Tue Jan 05, 2021 10:13 am
Forum: Civil Aviation
Topic: RR freezing development on the Ultrafan program
Replies: 46
Views: 10068

Re: RR freezing development on the Ultrafan program

Brexit doesn't help either, even though this might be less of an issue in a global market like aviation. I just wonder whether we will see so many new engine developments. Aviation must soon decide how they want to become carbon free. They could either use Hydrogen in Gas Turbines (which is not that...

Jump to post
by TheSonntag
Mon Jan 04, 2021 2:05 pm
Forum: Non-Aviation
Topic: COVID-19 Vaccine News and Discussion Thread
Replies: 2131
Views: 140429

Re: Updated: A COVID-19 vaccine candidate works!

dtw2hyd wrote:
Anyone has details on what vaccine is used in Israel, they are leading with 12% inoculation rate.


Biontech. They also plan to use Moderna soon, but so far they used Biontech.

Jump to post
by TheSonntag
Mon Jan 04, 2021 12:20 pm
Forum: Non-Aviation
Topic: COVID-19 Vaccine News and Discussion Thread
Replies: 2131
Views: 140429

Re: Updated: A COVID-19 vaccine candidate works!

Now that two, and maybe three, vaccines are available I cannot imagine most people consenting to joining a trial where 50% get a placebo. And this is a real issue. I guess it might still work for CureVac, since they started in December and Covid numbers currently are so high that they will get resu...

Jump to post
by TheSonntag
Mon Jan 04, 2021 12:18 pm
Forum: Non-Aviation
Topic: COVID-19 Vaccine News and Discussion Thread
Replies: 2131
Views: 140429

Re: Updated: A COVID-19 vaccine candidate works!

Good news, with the first Astra-Zeneca vaccines administered, albeit somewhat under a cloud of rising infection levels and the sense that the great work done by scientists and the health service, is compromised by a drifting, incoherent political leadership; https://www.bbc.co.uk/news/uk-55525542 W...

Jump to post
by TheSonntag
Sat Jan 02, 2021 2:07 pm
Forum: Non-Aviation
Topic: Brexit part XI: 2021
Replies: 648
Views: 35118

Re: Brexit part XI: 2021

Erasmus axed.

Passport requirement for visiting the UK (ID no longer sufficient).

Why invest in the UK for blue collar jobs if you can get the same from an EU country?

This will not be a fast disaster. It will be a slow decline.

Jump to post
by TheSonntag
Thu Dec 17, 2020 8:56 am
Forum: Civil Aviation
Topic: John Leahy blames the engines for the A380 failure-in service in 10 years? 2nd life after 2024?
Replies: 476
Views: 56745

Re: Could A380s have a second life from maybe 2024?

If you can build a hydrogen tank in the upper compartment, it might be a useful plane in the future. Seriously, from a technical point of view you can certainly fly the A380 for a long time. The outdated engine technology lets me doubt this, however, since the engines are considerably less efficient...

Jump to post
by TheSonntag
Tue Dec 15, 2020 11:10 am
Forum: Civil Aviation
Topic: British Airways to partner with hydrogen aerospace startup
Replies: 32
Views: 2924

Re: British Airways to partner with hydrogen aerospace startup

Airbus and Boeing are very slow. I understand we currently have a pandemic, but what I am really missing is a coordinated, world wide approach of aviation to come up with a useful hydrogen strategy.

Jump to post
  • 1
  • 2
  • 3
  • 4
  • 5
  • 91