Search found 153 matches

by estorilm
Fri Feb 23, 2018 8:37 pm
Forum: Military Aviation & Space Flight
Topic: 2x Russian SU-57 PAK-FA show up in Syria
Replies: 20
Views: 1475

Re: 2x Russian SU-57 PAK-FA show up in Syria

Still, those inlet duct gaps to air frame/wing fairing look horribly un-stealthy - and the wing root weapon bay? Ouch. The gap is to keep the skin boundary layer air from entering the inlet. Even the F-22 has them. One way to get rid of this skin boundary layer is suck out the layer just before the...

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by estorilm
Fri Feb 23, 2018 3:17 pm
Forum: Military Aviation & Space Flight
Topic: 2x Russian SU-57 PAK-FA show up in Syria
Replies: 20
Views: 1475

Re: 2x Russian SU-57 PAK-FA show up in Syria

The SU-57 has new engines coming. There was an image floating around in one of the new engine articles that also showed the aircraft without all the metal looking panels around the engines. http://defence-blog.com/news/russia-revealed-new-engine-developed-to-power-fifth-generation-aircraft.html htt...

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by estorilm
Thu Feb 22, 2018 8:12 pm
Forum: Civil Aviation
Topic: "support dog" bites child on Southwest Airlines
Replies: 60
Views: 6742

Re: "support dog" bites child on Southwest Airlines

I think there is a simple solution. Support animals should have no possibility of affecting the other passengers in a negative way. It should be small enough to fit into a carrier that is small enough to fit under the seat in front of you, period. It should remain inside it's cage for the duration ...

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by estorilm
Thu Feb 22, 2018 6:03 pm
Forum: Military Aviation & Space Flight
Topic: 2x Russian SU-57 PAK-FA show up in Syria
Replies: 20
Views: 1475

2x Russian SU-57 PAK-FA show up in Syria

Multiple sources reporting that Russia has perhaps sent two SU-57's to Syria, based on a video appearing to show the aircraft landing there. Business Insider Russia appears to have deployed its next-generation fighter jet to Syria — and it's a major problem for the F-22 http://www.businessinsider.co...

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by estorilm
Wed Feb 21, 2018 7:45 pm
Forum: Civil Aviation
Topic: Qatar Airways takes delivery of first A350-1000, mulls additional aircraft
Replies: 28
Views: 6765

Re: Qatar Airways takes delivery of first A350-1000, mulls additional aircraft

If you all haven't already - absolutely MUST check out the laser projection show they put on for the delivery ceremony, just awesome (even in the rain!)

https://www.youtube.com/watch?v=2ZYFNwm3eRA

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by estorilm
Wed Feb 21, 2018 3:09 pm
Forum: Civil Aviation
Topic: Airbus increases profit by 189% in 2017
Replies: 36
Views: 3343

Re: Airbus increases profit by 189% in 2017

It is good to see positive numbers. Things are improving! It is all relative. The A320neo family has 57% market share based on orders compared to the MAX. Not sure where the 4:1 number came from, but you are right that A321neos are demanding a price premium which is certainly helping Airbus financi...

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by estorilm
Wed Feb 21, 2018 2:11 pm
Forum: Civil Aviation
Topic: Alaska Air A321neo More to Love Livery Revealed!
Replies: 69
Views: 13708

Re: Alaska Air A321neo More to Love Livery Revealed!

How tough would it be to have an airline sport this kind of livery fleetwise? I understand that white is cheaper and better for performance, but some airlines have fully painted birds. Is the fading between colors much more expensive to apply? $$$ Why? AS rebranding a couple of years ago was one of...

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by estorilm
Wed Feb 21, 2018 2:01 pm
Forum: Civil Aviation
Topic: Qatar Airways takes delivery of first A350-1000, mulls additional aircraft
Replies: 28
Views: 6765

Re: Qatar Airways takes delivery of first A350-1000, mulls additional aircraft

Looks great, wish there were more images of the -1000 floating around! Even with the slight delivery slip, the entire program as a whole is impressive. Certification less than a year after the first flight, and revenue service only a few months later?! The changes over the -900 are more elaborate th...

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by estorilm
Thu Feb 15, 2018 2:55 pm
Forum: Civil Aviation
Topic: Airbus stops accepting PW1100G engines
Replies: 206
Views: 39007

Re: Airbus stops accepting PW1100G engines

Bad news, the fix may take 6 months or more before production can resume - Hong Kong Express Airways Ltd expects at least a six-month delay in deliveries of new Airbus SE AIR.SE A320neo jets due to issues with engines made by Pratt & Whitney, according to an internal memo issued by the airline....

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by estorilm
Thu Feb 15, 2018 2:41 pm
Forum: Civil Aviation
Topic: Boeing officially forms program office to flesh out 797 plans
Replies: 1159
Views: 197412

Re: Boeing officially forms program office to flesh out 797 plans

I'm reluctant to dive in to this thread, but I had a quick thought. Why doesn't Airbus simply jump in head first, and go ahead with the A322 while Boeing struggles to convince itself that the 797 might be a good idea. Airbus doesn't really have anything in development right now (for the first time i...

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by estorilm
Wed Feb 14, 2018 8:32 pm
Forum: Technical/Operations
Topic: Possibility of the 797 having a T-Tail?
Replies: 60
Views: 6102

Re: Possibility of the 797 having a T-Tail?

As others have indicated, T-tails are definitely out for airliners due to the structural weight penalties... It is no coincidence that Airbus, Boeing, Bombardier, Embraer, the Russians, etc all produce similar low wing-podded twin-engined airliners...everyone has arrived at the same conclusion...th...

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by estorilm
Wed Feb 14, 2018 6:45 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: An-148 crash near Moscow kills all 71 people on board

Just out of curiosity, can someone calculate a rough V/S based on 30-35 degree AOA and 800 km/h? Just curious if that may explain some of the early transponder data. With Angle = 0 degrees being level flight you have: Vertical speed = sin(Angle)*Airspeed Horizontal speed = cos(Angle)*Airspeed Verti...

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by estorilm
Tue Feb 13, 2018 6:29 pm
Forum: Military Aviation & Space Flight
Topic: New Tu-160 first flight
Replies: 37
Views: 3126

Re: New Tu-160 first flight

But why have a complex high-speed bomber when the only thing it has to do is send a missile from 5k away? That is a huge waste of money. Heck, you can put them on an airliner and have the same result at much less cost, or from a ship for that matter. Fire a missile in Moscow and send it on it's way...

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by estorilm
Tue Feb 13, 2018 6:20 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: An-148 crash near Moscow kills all 71 people on board

UPDATE: https://armenpress.am/eng/news/922547/experts-decode-possible-cause-behind-russian-an-148-airplane-crash.html ArmenPress reporting specifics of FDR information - their site won't let me copy / paste,... . Yes, they did make life rather difficult for me too; so I had to pull a few rabbits ou...

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by estorilm
Tue Feb 13, 2018 6:15 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: An-148 crash near Moscow kills all 71 people on board

It looks like this might be a repeat of the March 2011 an-148 crash. It may have lost a wing. I don't think those wings do well in high speeds and are structurally the first thing to fail in the event the aircraft is going too fast. Has anyone noticed wing fragments in any of these photos? That doe...

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by estorilm
Tue Feb 13, 2018 5:29 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: AN-148 with 71 people gone missing

While this might be down to FR24's graphing skills, the speed does show significant fluctuations... Check out any other flight and the speed behaves quite straightforward, very much unlike this doomed flight. Note the dropping airspeed starting at 11:26 despite losing altitude, gaining speed again ...

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by estorilm
Tue Feb 13, 2018 5:13 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: An-148 crash near Moscow kills all 71 people on board

Anyone checked out google news for "an-148 crash" lately? Dozens of articles now focusing in on ASI / pitot issues. Some even prematurely declaring the cause outright... Russia: Deadly plane crash caused by pilots' error on heat http://www.metronews.ca/news/world/2018/02/13/russian-investi...

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by estorilm
Tue Feb 13, 2018 4:53 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: AN-148 with 71 people gone missing

https://uploads.tapatalk-cdn.com/20180211/cf84721d46b88946b7b381ea56d49940.jpg I'd say based on the previous post about pitot heat and the earlier reports of refusing de-ice, along with "substantial airspeed deviation" comment - that at least one and probably a couple of the pitots could ...

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by estorilm
Tue Feb 13, 2018 3:59 pm
Forum: Civil Aviation
Topic: An-148 crash near Moscow kills all 71 people on board
Replies: 191
Views: 47705

Re: An-148 crash near Moscow kills all 71 people on board

The Russian investigators just reported that the preliminary results of the flight data recorder indicate that 1)last minutes of flight the aircraft experienced substantial variation of IAS and 2)pitot heat was off during the entire flight for all three tubes. You get the picture. https://www.gazet...

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by estorilm
Tue Feb 13, 2018 2:52 pm
Forum: Civil Aviation
Topic: A321 NEO LR LBG - JFK Flight Tracker
Replies: 58
Views: 10480

Re: A321 NEO LR CDG - JFK Flight Tracker

keesje wrote:

Ohhh what I'd do to trade my work desk for theirs right now :lol: Wonder what's for lunch? Someone in another thread said it was heading to JFK?

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by estorilm
Mon Feb 12, 2018 10:08 pm
Forum: Military Aviation & Space Flight
Topic: New Tu-160 first flight
Replies: 37
Views: 3126

Re: New Tu-160 first flight

The Tu-160 is a nice supplement to the naval strike capabilities of the Russian military. Considering that their ACTIVE surface fleet is still significantly smaller than the US fleet, and that their attack docterine is saturation ASM attacks, having the ability of the TU-160 to get to the firing po...

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by estorilm
Fri Feb 09, 2018 7:09 pm
Forum: Military Aviation & Space Flight
Topic: New Tu-160 first flight
Replies: 37
Views: 3126

Re: New Tu-160 first flight

Simple google search: https://fas.org/nuke/guide/usa/bomber/b1b_bombs.gif USAF has the B-2A Spirit and the old B-52's to do the nuclear thing. But why have a complex high-speed bomber when the only thing it has to do is send a missile from 5k away? That is a huge waste of money. Heck, you can put t...

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by estorilm
Fri Feb 09, 2018 2:38 pm
Forum: Military Aviation & Space Flight
Topic: New Tu-160 first flight
Replies: 37
Views: 3126

Re: New Tu-160 first flight

B1B and Tu-160 have different concepts of combat use. Tu-160 is not part of the air defense zone - it simply launches missiles from a distance of 4-5 thousand kilometers, and returns to the base for reloading. And B1B at the moment does not even carry strategic weapons - only free-falling bombs, as...

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by estorilm
Thu Feb 08, 2018 8:26 pm
Forum: Civil Aviation
Topic: Emergency exit door falls off upon touchdown
Replies: 13
Views: 5161

Re: Emergency exit door falls off upon touchdown

What is an "unstable door" complaint anyways? ...and how does said door manage to pressurize, survive peak pressure @ cruise, and only fail upon touchdown. Unless I just answered my own question, and once the seal pressure was released it was actually able to "fall off" - but st...

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by estorilm
Thu Feb 08, 2018 3:12 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments
Replies: 1300
Views: 122127

Re: SpaceX - Tests, Launches, Developments

I dug up some of what I read - basically the BulgariaSat-1 launch last June used a high-performance supersynchronous transfer orbit over 37k mi. This launch placed unusual stresses on the re-entry profile for the booster (including more fuel constraints PLUS higher speeds) - prompting a (shorter) 3...

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by estorilm
Thu Feb 08, 2018 2:50 pm
Forum: Civil Aviation
Topic: Boeing admits 747 has no future as a pax model
Replies: 166
Views: 28496

Re: Boeing admits 747 has no future as a pax model

Never was a fan of the Hunchback of Puget Sound, and will never in a trillion years understand why it's maintained the cult of personality that it has among AvGeeks... Seems you like generic, boring middle-of-the-road designs like your nickname suggests. Hardly disputable, the 747 is, together with...

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by estorilm
Thu Feb 08, 2018 2:36 pm
Forum: Civil Aviation
Topic: Emergency exit door falls off upon touchdown
Replies: 13
Views: 5161

Re: Emergency exit door falls off upon touchdown

What is an "unstable door" complaint anyways? ...and how does said door manage to pressurize, survive peak pressure @ cruise, and only fail upon touchdown. Unless I just answered my own question, and once the seal pressure was released it was actually able to "fall off" - but sti...

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by estorilm
Thu Feb 08, 2018 2:15 pm
Forum: Military Aviation & Space Flight
Topic: PAK-FA - RCS / stealth design shortcomings? Esp. at rear?
Replies: 45
Views: 6134

Re: PAK-FA - RCS / stealth design shortcomings? Esp. at rear?

Hope no one minds if I bump this. I continue to be surprised by the lack of information coming out about this new fighter (again, given the massive cult-following of Russian "superiority" on social media, lol!) My largest areas of curiosity are: If they managed to develop and deploy compos...

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by estorilm
Wed Feb 07, 2018 9:09 pm
Forum: Civil Aviation
Topic: WN 737 off taxiway in BWI
Replies: 18
Views: 4351

Re: WN 737 off taxiway in BWI

Didn't they say everything was treated and that temperature at the time of the incident was 37? One article also mentions "visible skid marks" from the nose gear. Could the nose wheel have started to skid and a tiller over-reaction got the wheel going essentially sideways with the plane co...

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by estorilm
Wed Feb 07, 2018 8:56 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments
Replies: 1300
Views: 122127

Re: SpaceX - Tests, Launches, Developments

...In a typical configuration the FH isn't trying to launch payloads further, it's simply lifting heavier things - thus recovering the center core isn't entirely different than the outers, though the boost-back (and possibly re-entry?) burns will need to provide more energy.... Well, SpaceX has mad...

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by estorilm
Wed Feb 07, 2018 7:43 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments
Replies: 1300
Views: 122127

Re: SpaceX - Tests, Launches, Developments

As for the fairings.I am not sure quite what they are doing.They are practically if not totally in orbit when they release.How do they slow them down,how do they guide them - really bad shape at such speeds/altitude. The fairings are released at far less than orbital velocity...at about 110 km (70 ...

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by estorilm
Tue Feb 06, 2018 10:21 pm
Forum: Military Aviation & Space Flight
Topic: New Tu-160 first flight
Replies: 37
Views: 3126

Re: New Tu-160 first flight

Nice to see a clean TU-160 with no big gaps / leaks and some new paint! It's an interesting aircraft - I'm a little surprised they retained the same high supersonic speed capabilities instead of going the way of the B1B, but I suppose size constraints prevented any type of terrain-following ability....

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by estorilm
Tue Feb 06, 2018 9:04 pm
Forum: Technical/Operations
Topic: What makes the B737 an "old, outdated" design?
Replies: 143
Views: 10127

Re: What makes the B737 an "old, outdated" design?

I do think there are a number of protections which aid in preventing crashes on a fairly regular basis, but end up being embarrassing moments that usually don't even get reported or mentioned (for obvious reasons). I was able to find an alarming number of unstable approaches similar to Asiana 214, f...

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by estorilm
Tue Feb 06, 2018 7:38 pm
Forum: Civil Aviation
Topic: Airbus A350-1000 performs better than expected
Replies: 54
Views: 13450

Re: Airbus A350-1000 performs better than expected

StTim wrote:
There are some funny comments on the Twitter thread.

What I do think is that Airbus is getting more and more confident in its A350-1000 and with real world facts to back it up.

I can't find it :(

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by estorilm
Tue Feb 06, 2018 5:21 pm
Forum: Technical/Operations
Topic: What makes the B737 an "old, outdated" design?
Replies: 143
Views: 10127

Re: What makes the B737 an "old, outdated" design?

Yeah the B737 design is "long in the tooth" But! it's set a standard the Airbus might not EVER match What standard are you speaking of, exactly? Most I can think of have not only been matched, but exceeded. Unless you're speaking of age / sales "miles flown" records or something...

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by estorilm
Tue Feb 06, 2018 3:11 pm
Forum: Civil Aviation
Topic: Airbus A350-1000 performs better than expected
Replies: 54
Views: 13450

Re: Airbus A350-1000 performs better than expected

The performance seems to be giving confidence to the Airbus marketing staff... Obe throws some shade at rival Boeing widebody "A350-1000 at pushback weighs same as an empty 777-9" #avgeek #SGAirshow http://twitter.com/RAeSTimR/status/960341318454059008 Ouch! :duck: That is quite a head-sc...

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by estorilm
Tue Feb 06, 2018 2:22 pm
Forum: Civil Aviation
Topic: Will GE's trouble have influence on their aviation division
Replies: 29
Views: 3035

Re: Will GE's trouble have influence on their aviation devision

Such a shame - GE has a rich history in the locomotive industry. They were TWO+ YEARS ahead of rival EMD in getting a Tier 4-compliant locomotive running on the rails, and they over-performed in every way. They had lots of units running mainline freight on some of the toughest areas in the country b...

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by estorilm
Mon Feb 05, 2018 4:20 pm
Forum: Civil Aviation
Topic: Reuters: United to consider Airbus A321 NEO.
Replies: 233
Views: 36003

Re: Reuters: United to consider Airbus A321 NEO.

[But would a MoM not also suffer from the same drawbacks compared to the A321neoLR? A relatively small gain in fuel efficiency but also a lot more expensive. MoM will be more than a re-engine, however. The A320 family is generally considered "underwinged", especially for extreme (for a na...

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by estorilm
Mon Feb 05, 2018 3:08 pm
Forum: Civil Aviation
Topic: L-1011 at ONT
Replies: 55
Views: 8392

Re: L-1011 at ONT

Hey at least it's getting a C check everyone!

What's the timespan extension for that check, given their use of the aircraft?

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by estorilm
Fri Feb 02, 2018 5:59 pm
Forum: Civil Aviation
Topic: Boeing 777X - Updated Information And Developments
Replies: 2650
Views: 251438

Re: Boeing 777X - Updated Information And Developments

First flight of the GE9X engine is delayed after .... General Electric Aviation has been forced to delay first flight of the GE9X engine for Boeing’s 777X flagship program after the late discovery of a minor design issue with the new turbofan as well as maintenance-related problems with the CF6 eng...

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by estorilm
Fri Feb 02, 2018 5:38 pm
Forum: Civil Aviation
Topic: UPS announces order for 14 747-8F and 4 767F
Replies: 169
Views: 24149

Re: UPS announces order for 14 747-8F and 4 767F

I hate to "go there" - but am I the only one who thinks that Airbus was kinda hoping an order like this might not take place (ever) for the -8i... forcing Boeing to close production and almost certainly sealing the fate of their only VLA and (kinda) 380 competitor? I'm talking in a few ye...

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by estorilm
Fri Feb 02, 2018 5:09 pm
Forum: Civil Aviation
Topic: UPS announces order for 14 747-8F and 4 767F
Replies: 169
Views: 24149

Re: UPS announces order for 14 747-8F and 4 767F

I hate to "go there" - but am I the only one who thinks that Airbus was kinda hoping an order like this might not take place (ever) for the -8i... forcing Boeing to close production and almost certainly sealing the fate of their only VLA and (kinda) 380 competitor? I'm talking in a few yea...

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by estorilm
Fri Feb 02, 2018 3:54 pm
Forum: Civil Aviation
Topic: Airbus A330neo Production/Delivery Thread 2018
Replies: 114
Views: 28510

Re: Airbus A330neo Production/Delivery Thread 2018

Those wings look loong! I've always thought the A330 has had the most beautiful wings of any conventional generation aircraft.. I think the 350 eclipses that. From the rear especially, the way Airbus wings (A330 and up) recurve down towards the fuselage is really aesthetically pleasing. I know ther...

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by estorilm
Fri Feb 02, 2018 3:44 pm
Forum: Civil Aviation
Topic: Potentially serious Incident on Spirit 320 NEO
Replies: 21
Views: 7936

Re: Potentially serious Incident on Spirit 320 NEO

I don’t give this too much weight. Indeed. The plane operated another service after this "incident" on 28th and appears to have been operating normally ever since - currently en-route to PIT. Slow news day, I think. I assume maintenance would require a significant amount of time to replac...

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by estorilm
Wed Jan 31, 2018 3:06 pm
Forum: Non-Aviation
Topic: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.
Replies: 140
Views: 3772

Re: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.

We need mental health system taken care of and some basic firearms education in school would be a good place to start. Mental health is not part of the gun problem, certainly far less than long arms are. Yes mental health is part of the problem. A gun is just a tool. Most gun related deaths are sui...

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by estorilm
Wed Jan 31, 2018 2:59 pm
Forum: Non-Aviation
Topic: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.
Replies: 140
Views: 3772

Re: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.

People like to forget the fact that there's already ~300 MILLION GUNS floating around US right now. Future gun control, purchasing limitations, even bans (even bans on certain types!) aren't going to do a single thing. The bottom line is that you'd have to "round up" and TAKE guns away fr...

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by estorilm
Tue Jan 30, 2018 5:34 pm
Forum: Non-Aviation
Topic: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.
Replies: 140
Views: 3772

Re: Kentucky School Shooting Is 11th of Year. It’s Jan. 23.

People like to forget the fact that there's already ~300 MILLION GUNS floating around US right now. Future gun control, purchasing limitations, even bans (even bans on certain types!) aren't going to do a single thing. The bottom line is that you'd have to "round up" and TAKE guns away fro...

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by estorilm
Fri Jan 19, 2018 4:11 pm
Forum: Military Aviation & Space Flight
Topic: X-2 Stealth Technology Demonstrator
Replies: 40
Views: 21086

Re: X-2 Stealth Technology Demonstrator

I know this got dragged out of the archives already, however I just can't help but comment on the design of this thing. What exactly is the purpose of it? A demonstrator should attempt to tackle the most difficult aspects of a successful 5th gen stealth fighter, correct? AKA internal weapons stores...

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by estorilm
Fri Jan 19, 2018 4:10 pm
Forum: Technical/Operations
Topic: What are the ports around the A350's nose?
Replies: 14
Views: 2412

Re: What are the ports around the A350's nose?

For comparison, the 330 has only two "main" systems, Captain's and FO's. These have one pitot, two static ports, one AoA sensor and a TAT (total temp) probe each. The standby system has a pitot, two static ports and an AoA probe. It gets TAT data from the Captain's TAT probe. ADIRU 1 gets...

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by estorilm
Thu Jan 18, 2018 7:53 pm
Forum: Civil Aviation
Topic: DC/VA/MD Aviation Thread - 2018
Replies: 90
Views: 6904

Re: DC/VA/MD Aviation Thread - 2018

Slightly random, but I figured everyone in here would probably know the answer. Can someone please tell me what the cargo aircraft are that I see flying around IAD on approach / departure fairly often? All I can tell from the distance is that it's a swept-wing cargo/transport, looks like C-17, A-40...

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