Search found 563 matches

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by LightningZ71
Wed Oct 21, 2020 2:21 pm
Forum: Civil Aviation
Topic: Anyone have the story of a jumbo landing emergency and seats had to be removed to get plane out?
Replies: 57
Views: 10418

Re: Anyone have the story of a jumbo landing emergency and seatschad to be removed to get plane out?

There was also TACA 110, that had dual engine failure due to water ingestion. The aircraft made an emergency landing on a levee. The engineers had to do an engine change and then took off from the road near the levee https://en.wikipedia.org/wiki/TACA_Flight_110 Either of these ? My father was work...

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by LightningZ71
Fri Oct 09, 2020 7:37 pm
Forum: Civil Aviation
Topic: EASA Approves 9 Tonne Increase In A330-900 Max Takeoff Weight
Replies: 66
Views: 11011

Re: EASA Approves 9 Tonne Increase In A330-900 Max Takeoff Weight

And further solidifying the irrelevance of the -800 model...

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by LightningZ71
Wed Oct 07, 2020 1:53 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2020
Replies: 488
Views: 48226

Re: SpaceX - Tests, Launches, Developments - 2020

SpaceX has been either passively or actively deorbiting satellites for over a year. If we conclude that every deorbit, aside from the disclosed early few that were deliberately deorbited as a demonstration for regulators of the process, is a failed satellite, they are somewhere between 1-2% failure ...

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by LightningZ71
Wed Sep 30, 2020 1:59 pm
Forum: Military Aviation & Space Flight
Topic: F-35 News Thread - 2020
Replies: 327
Views: 41960

Re: F-35 News Thread - 2020

Glad everyone made it out of that alive from the reports that we have. That whole process must look a whole lot like the early days of IFR. My dad was in the USAF during and after the Korean War and recounted getting to ride along and watch from below as the crews would practice IFR procedures with ...

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by LightningZ71
Wed Sep 23, 2020 4:21 pm
Forum: Military Aviation & Space Flight
Topic: Best dogfighter in 1970
Replies: 40
Views: 2496

Re: Best dogfighter in 1970

Getting back to the topic, here's an interesting tidbit... The F-106 Delta Dart was just starting to get the 6 shooter upgrade in 1970, with at least one unit flying them actively before the end of the year. There are reports of them being used in air combat training vs. Early F-15s and F-14s and pe...

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by LightningZ71
Thu Sep 17, 2020 8:04 pm
Forum: Military Aviation & Space Flight
Topic: USAF PCA and other 6th gen fighters
Replies: 138
Views: 21463

Re: USAF PCA and other 6th gen fighters

Assuming that they might want to stress the airframe for 12+G loads, a water filled meat sack in the cockpit is not just obsolete, but also not viable. You can use a W&B and aerodynamically representative flight demonstrator to perfect the AI flight control system before the production quality p...

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by LightningZ71
Thu Sep 17, 2020 12:37 pm
Forum: Military Aviation & Space Flight
Topic: USAF PCA and other 6th gen fighters
Replies: 138
Views: 21463

Re: USAF PCA and other 6th gen fighters

Well, for the test pilot issue, please keep in mind that the NGAD is supposed to be optionally manned. They could choose to do initial flight testing with unmanned systems in control...

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by LightningZ71
Wed Sep 16, 2020 7:02 pm
Forum: Military Aviation & Space Flight
Topic: USAF PCA and other 6th gen fighters
Replies: 138
Views: 21463

Re: USAF PCA and other 6th gen fighters

You've essentially got the gist of it there. Having an early, full scale demonstrator that is of the relevant dimensions with respect to internal equipment plans is a valuable asset in accelerating the development of the installed equipment. Other measures are being taken to accelerate other aspects...

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by LightningZ71
Wed Sep 16, 2020 3:25 pm
Forum: Military Aviation & Space Flight
Topic: USAF PCA and other 6th gen fighters
Replies: 138
Views: 21463

Re: USAF PCA and other 6th gen fighters

The ability to do full digital prototyping in a virtual wind tunnel and then quickly turn around and build a working, full scale prototype with production quality parts produced from 3D printers of various sizes and types (including ones designed to work with unusual materials) is making a major imp...

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by LightningZ71
Sat Sep 12, 2020 2:37 am
Forum: Civil Aviation
Topic: Reuters: Boeing considering 757-Plus and 767-X
Replies: 797
Views: 149879

Re: Reuters: Boeing considering 757-Plus and 767-X

So, general question: could Boeing, in this fantasy land where the 757 gets a shot at life, do the same thing to the 757 that they did to the 777x? Maybe not as extreme, but through materials engineering, reduce the OEW of the 757 fuselage by a few thousand pounds, replace the outer section of the w...

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by LightningZ71
Fri Sep 11, 2020 3:13 pm
Forum: Military Aviation & Space Flight
Topic: Best BVR Fighter in 1970
Replies: 50
Views: 3991

Re: Best BVR Fighter in 1970

Ugh, what a convenient way of needing to quickly replace a fighter jet... and Pilot!

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by LightningZ71
Fri Sep 11, 2020 2:45 pm
Forum: Civil Aviation
Topic: Pt2: Southwest CEO Kelly, "If things don't improve, this cannot continue"
Replies: 114
Views: 13553

Re: Pt2: SouthWest CEO Kelly, "If things don't improve, this cannot continue"

In terms of airline operations, I think that they will all manage to find an operating model that will get them through the next 24 months or so. Its going to be very painful, and I do expect there to be some significant incidents with labor unions objecting to the pain they will be put through. I d...

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by LightningZ71
Thu Sep 10, 2020 5:03 pm
Forum: Military Aviation & Space Flight
Topic: Second tier advanced fighter projects news and discussion
Replies: 134
Views: 27482

Re: Second tier advanced fighter projects news and discussion

Oh, I was under no delusions that the F-16XL had a prayer of ever seeing the market these days. It was more of a "what if" musing. I dare say that, with the -132, and some lightening of the internal equipment from 20+ years of integrated circuit development and materials engineering, that ...

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by LightningZ71
Wed Sep 09, 2020 1:45 pm
Forum: Military Aviation & Space Flight
Topic: Second tier advanced fighter projects news and discussion
Replies: 134
Views: 27482

Re: Second tier advanced fighter projects news and discussion

Speaking of the F-16... And I know that in F-16 circles this has the same sort of reputation as the 757 does in the normal a.net civil forum, I have to wonder if the F-16XL would make for a compelling Gen 4.5-4.75 aircraft? Looking at what it offered, including the substantial increase in fuel capac...

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by LightningZ71
Wed Sep 09, 2020 1:26 pm
Forum: Military Aviation & Space Flight
Topic: Best BVR Fighter in 1970
Replies: 50
Views: 3991

Re: Best BVR Fighter in 1970

The Rapier would definitely have been an amazing interceptor. It also would have been amazingly expensive and difficult to purchase and maintain. Having to use heated JP-6 for its engines would have been difficult, and having no other planes to share infrastructure with (The XB-70 was canceled, whic...

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by LightningZ71
Tue Sep 01, 2020 12:06 pm
Forum: Civil Aviation
Topic: Updated: Another jetpack sighting while on approach to LAX
Replies: 71
Views: 13105

Re: American Airlines pilot saw someone with a jetpack on approach into LAX

Given the amount of wealth that exists in that area, I'm not at all surprised that something like this appears to have happened. We know of the guys in Europe that have their own jet powered wing suit, as well as this crew from Dubai... https://www.upi.com/Odd_News/2020/02/18/Jet-powered-wingsuit-ta...

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by LightningZ71
Mon Aug 24, 2020 2:31 am
Forum: Civil Aviation
Topic: Reuters: Boeing considering 757-Plus and 767-X
Replies: 797
Views: 149879

Re: Reuters: Boeing considering 757-Plus and 767-X

Why was the 767-400 a sales flop? It was too large for a domestic market that was starting to emphasize frequency and modest sized frames with high efficiency over big trunk flights with low frequencies. It was too short legged to efficiently operate in the Pacific or on some of the longer Atlantic ...

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by LightningZ71
Wed Aug 19, 2020 5:09 pm
Forum: Military Aviation & Space Flight
Topic: Germany Considers Tornado Replacement
Replies: 1648
Views: 226968

Re: Germany Considers Tornado Replacement

That Lightning mission plan reminds me of the USAF Voodoo and the Genie combination. Nothing like being tasked to deliver a remotely aimed air to air nuclear armed missile that's designed to take out whole formations of enemy bombers, especially when the whole concept was still not an exact science ...

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by LightningZ71
Tue Aug 18, 2020 2:21 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2020
Replies: 488
Views: 48226

Re: SpaceX - Tests, Launches, Developments - 2020

5G for cellular is still going to be a niche item for a long time to come. The sheer number of 5G towers/ hot-spots that will need to exist to make it both pervasive and useful is just mind boggling. However, 5G does have other advantages for cellular carriers. AT&T has all but stopped most of t...

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by LightningZ71
Wed Aug 12, 2020 12:37 pm
Forum: Military Aviation & Space Flight
Topic: Future KC-10 replacement options?
Replies: 123
Views: 10562

Re: Future KC-10 replacement options?

Taking a quick look at the numbers, Unless Boeing performs some sort of magic with the thing, it's going to take at least a 100,000 lb hit to total fuel load as compared to the KC-10. Even with more efficient engines, and a greater MTOW fraction dedicated to possible fuel load, it's not going to be ...

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by LightningZ71
Mon Aug 10, 2020 3:43 pm
Forum: Military Aviation & Space Flight
Topic: Future KC-10 replacement options?
Replies: 123
Views: 10562

Re: Future KC-10 replacement options?

Looking at the thread in the Civil section of this site, the rumored 767-400ER modification wouldn't just be new engines from the 747-8. It would also include a shortened fuselage (somewhere between the -300 and -400 length) as well. That could be enough to make the boom work (with respect to tailst...

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by LightningZ71
Mon Aug 10, 2020 3:35 pm
Forum: Military Aviation & Space Flight
Topic: Why didn’t the Marines buy the AH64 ?
Replies: 25
Views: 2341

Re: Why didn’t the Marines buy the AH64 ?

Someone, somewhere, decided that, if the Marines were going to keep both the Cobra and the UH-1, they needed to come up with a way to make it more cost effective in replacement parts and man hours to support them, so they launched a program back in the 90s to increase their comonality. The AH-1Z and...

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by LightningZ71
Fri Jul 31, 2020 2:59 pm
Forum: Military Aviation & Space Flight
Topic: USS Bonhomme Richard (Wasp-class amphibious assault ship) is on fire
Replies: 102
Views: 17856

Re: USS Bonhomme Richard (Wasp-class amphibious assault ship) is on fire

I don't see the Ponce or the Puller as viable for the F-35 as it needs a rolling take off to carry a useful war load. Neither of them offer that possibility. The recently retired Peleliu is the most likely candidate for regeneration, but it would take a LOT of resources to make it work for F-35 acti...

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by LightningZ71
Mon Jun 29, 2020 3:09 pm
Forum: Military Aviation & Space Flight
Topic: USAF PCA and other 6th gen fighters
Replies: 138
Views: 21463

Re: USAF PCA and other 6th gen fighters

Adding to Ozair's statement, with regard to the B-52, the only reason that an engine swap is even being discussed there is that supporting the TF-33 is getting more and more difficult as the platform ages. Going to a modern engine will certainly bring greater efficiency with respect to fuel and emis...

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by LightningZ71
Wed Jun 17, 2020 1:34 pm
Forum: Military Aviation & Space Flight
Topic: Canada - Future Fighter Capability Project
Replies: 211
Views: 73107

Re: Canada - Future Fighter Capability Project

The update also addresses the fact that they had the helmet mounted queuing system for hihg off bore targeting for the AIM-9X sidewinders, but had none of them actually in inventory. thedrive.com has a decent article on this whole transaction, though the raw details aren't any different from the def...

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by LightningZ71
Mon Jun 08, 2020 6:40 pm
Forum: Civil Aviation
Topic: IAI Launches 777-300ER converted freighters with GECAS
Replies: 325
Views: 63353

Re: IAI Launches 777-300ER converted freighters with GECAS

I don't think that anyone realistically felt that the 778-F would be a near-term product with any kind of sustainable volume. With the 748F ending production, and with no more 777Fs in the pipeline after the current orders (if there are any) are completed, the only solution for large freighters (i.e...

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by LightningZ71
Thu Jun 04, 2020 1:00 pm
Forum: Military Aviation & Space Flight
Topic: Former F-117 pilot admits plane had secondary A2A role on podcast
Replies: 7
Views: 2399

Re: Former F-117 pilot admits plane had secondary A2A role on podcast

During the era, its likely adversary would have had only two ways of detecting it: the rear gun mount radar on their AWACS, patrol and strategic bombers, and their ground control air search radars. Such an intercept would likely have been far away from any of their ground control stations, so the la...

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by LightningZ71
Mon Jun 01, 2020 12:49 pm
Forum: Civil Aviation
Topic: ​Internal tussle as Boeing weighs future of 747
Replies: 378
Views: 59446

Re: ​Internal tussle as Boeing weighs future of 747

A tail ramp on the 777 would require an almost complete tear up and redo of the rear half of the fuselage aft of the wing box. If you're going to be doing all that, its almost more cost effective to do a plane specifically for the task. Also, considering that the mass of the ramp and mechanism would...

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by LightningZ71
Mon Jun 01, 2020 12:07 pm
Forum: Civil Aviation
Topic: Reuters: Boeing considering 757-Plus and 767-X
Replies: 797
Views: 149879

Re: Reuters: Boeing considering 757-Plus and 767-X

For a single or no pilot aircraft, there will absolutely have to be an ability for the plane to be remotely controlled/over ridden from the ground. That implies a wireless communication network AND it implies a requirement for absolute data security. As we see, day after day, wireless networks are o...

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by LightningZ71
Fri May 29, 2020 1:52 pm
Forum: Civil Aviation
Topic: Amazon Fleet Discussion - 2020
Replies: 1486
Views: 181937

Re: Amazon Fleet Discussion - 2020

This is precisely the space where automation and autonomous delivery machines will make the biggest impact. Being able to have a battery operated drone/car/whatever be able to do the last mile from an amazon warehouse would be an immense savings to Amazon, and I see it being used where it will be th...

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by LightningZ71
Thu May 28, 2020 1:45 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2020
Replies: 488
Views: 48226

Re: SpaceX - Tests, Launches, Developments - 2020

While it may seem negligible, the whole rocket is under a considerable amount of stress during ascent and excessive winds causing it to have to work harder to maintain course will only make those loads higher and reduce margins, leading to reduced safety for the whole trip up. They know what they ar...

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by LightningZ71
Fri May 22, 2020 1:29 pm
Forum: Military Aviation & Space Flight
Topic: New advertisement: B-52 re-engine back in the mix?
Replies: 141
Views: 29007

Re: New advertisement: B-52 re-engine back in the mix?

I suspect that any mass saved by the newer, lighter engines will be "Spent" on improved, nacel mounted countermeasures. Why add useless dead weight when you can actually make it productive?

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by LightningZ71
Fri May 08, 2020 5:16 pm
Forum: Military Aviation & Space Flight
Topic: New Boeing Combat Drone
Replies: 73
Views: 18580

Re: New Boeing Combat Drone

I agree, common composites for outer structure, aluminum for the inner framework, stealth shaping with well established RA paint. Given that it is a smaller platform than the F-35 or 18, it doesn't need to be overly aggressive in it's stealth tech to achieve a smaller RCS.

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by LightningZ71
Wed May 06, 2020 2:07 pm
Forum: Military Aviation & Space Flight
Topic: New Boeing Combat Drone
Replies: 73
Views: 18580

Re: New Boeing Combat Drone

Just from a quick look, judging from the rear end shot, they could VERY easily give it 2-D thrust vectoring like the F-22 has if they needed pitch authority for high G maneuvers.

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by LightningZ71
Mon May 04, 2020 8:00 pm
Forum: Civil Aviation
Topic: Reuters: Boeing considering 757-Plus and 767-X
Replies: 797
Views: 149879

Re: Reuters: Boeing considering 757-Plus and 767-X

I find it hard to believe that it won't just be a lengthened 767-2c, stretched out a few frames past 763 length, with the GenX2B engines and any needed 764 parts to deal with the extra MTOW and bigger engines. Changing anything else, aside from a diet, makes it needlessly capable and adds a whole bu...

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by LightningZ71
Thu Apr 23, 2020 4:54 pm
Forum: Civil Aviation
Topic: Aerion moves forward with supersonic AS2 for 2024, unveils new final design
Replies: 113
Views: 17308

Re: Aerion moves forward with supersonic AS2 for 2024, unveils new final design

I do think that there is a solid issue with the runway length requirements limiting it's desirability for it's longest range legs. Being significantly limited in airport choice will be a hit, as will the requiremofor tech stops for longer runs. Some of the fastest long range biz jets can cruise at ....

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by LightningZ71
Thu Apr 23, 2020 4:15 pm
Forum: Civil Aviation
Topic: MoL - leaving middle seat empty " idiotic "
Replies: 79
Views: 11576

Re: MoL - leaving middle seat empty " idiotic "

With masks on, the velocity of any particle or droplet that manages to get past them is greatly reduced. It is statistically unlikely that anyone that is wearing a mask that is essentially as effective as two T-shirts lated over each other is going to spread a droplet beyond one foot from their pers...

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by LightningZ71
Thu Apr 23, 2020 4:41 am
Forum: Military Aviation & Space Flight
Topic: Blue Angels NYC Flyover 4/22/2020
Replies: 15
Views: 1989

Re: Blue Angels NYC Flyover 4/22/2020

They have cancelled a bunch of shows because of COVID-19, but the money was already allocated, and they still need flight hours to stay proficient. The money isn't likely to be any different.

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by LightningZ71
Wed Apr 22, 2020 3:31 pm
Forum: Military Aviation & Space Flight
Topic: Blue Angels NYC Flyover 4/22/2020
Replies: 15
Views: 1989

Re: Blue Angels NYC Flyover 4/22/2020

According to website thedrive.com, the Blue Angels AND the Thunderbirds have been down in Pensacola training together for a special national tour of joint formation fly overs of major cities along both coasts, a split tour through the central US, followed by another group of joint shows in Texas. Th...

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by LightningZ71
Wed Apr 22, 2020 12:05 pm
Forum: Civil Aviation
Topic: Rumor: DL looking to trade 717s for 737 Max
Replies: 526
Views: 98663

Re: Rumor: DL looking to trade 717s for 737 Max

I don't think that I've seen anyone bring it up yet, but, with the accelerated retirement of the super 80s and md90s, doesn't the incremental cost of operations for the 717 increase? While being substantially newer, it is my understanding that the 717 does share some maintenance resources with the s...

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by LightningZ71
Wed Apr 22, 2020 11:37 am
Forum: Civil Aviation
Topic: Aerion moves forward with supersonic AS2 for 2024, unveils new final design
Replies: 113
Views: 17308

Re: Aerion moves forward with supersonic AS2 for 2024, unveils new final design

Eh, kinda reminds me of the B1, if it was scaled down to three engines, lost its variable sweep wing, and was cost optimized.

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by LightningZ71
Tue Apr 21, 2020 12:17 am
Forum: Non-Aviation
Topic: Oil price crash
Replies: 223
Views: 7961

Re: WTI Oil price goes negative

They may have a marginal cost of production that makes it currently unprofitable to pump and ship their product, but it also costs real, current money to fully stop production and even more money to cap a well if shutter a site for the long term. It makes sense to pump and ship oil at a near term lo...

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by LightningZ71
Sun Apr 19, 2020 3:10 pm
Forum: Civil Aviation
Topic: Coronavirus Aviation Related News & Discussion Thread - April 2020
Replies: 542
Views: 99973

Re: Coronavirus Aviation Related News & Discussion Thread - April 2020

Business travel, usually with higher fares, has been where airlines make their profits. Over the last 20 years, the highest end business travelers have shifted to private jets for security, productivity and compensation reasons. As others have noted, the economic and public health affects from Covi...

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by LightningZ71
Sat Apr 18, 2020 7:19 am
Forum: Civil Aviation
Topic: Delta plans to emerge a "smaller" carrier
Replies: 2164
Views: 385196

Re: Delta plans to emerge a "smaller" carrier

Offering buy outs or generously attractive early retirement packages to long time employees is a short term pain, and coupled with keeping the lower paid, but still well compensated younger employees around, does nothing to stop the short term cash bleed. If, instead, you appease your unions for tho...

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by LightningZ71
Sat Apr 11, 2020 1:00 am
Forum: Civil Aviation
Topic: Updated: DL retired MD-80/90s quickly
Replies: 1195
Views: 261872

Re: DL retiring MD-80/90s quickly

While I'm sad to see the Super 80s go, I'm more just trying to wrap my head around why Delta is still bothering to fly them. Given how horrible their financials are right now, there has to be some sort of financial incentive for them to not just park them all immediately. I hadn't thought about pilo...

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by LightningZ71
Sat Apr 11, 2020 12:50 am
Forum: Civil Aviation
Topic: Airbus A320ceo Family Production/Delivery Thread - 2020
Replies: 60
Views: 15038

Re: Airbus A320ceo Family Production/Delivery Thread - 2020

Maybe Delta could negotiate to take the engines that have already been produced for the CEOs that they don't take up as spares for the rest of the fleet?

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by LightningZ71
Fri Apr 10, 2020 2:31 pm
Forum: Civil Aviation
Topic: New Orleans Aviation Thread - 2020
Replies: 362
Views: 43203

Re: New Orleans Aviation Thread - 2020

It was definitely unusual to see them. Was a nice change (given the circumstances) as lately the tarmac has been a virtual ghost town at certain times of day.

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by LightningZ71
Fri Apr 10, 2020 2:29 pm
Forum: Civil Aviation
Topic: Updated: DL retired MD-80/90s quickly
Replies: 1195
Views: 261872

Re: DL retiring MD-80/90s quickly

The only thing that comes to mind about operating costs are the ongoing maintenance and check costs. Since the MD-80/90 series is EOL, and they are essentially using their own existing spares pool for parts, is it possible that the maintenance costs per flight hour on the existing supers is lower th...

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by LightningZ71
Thu Apr 09, 2020 1:35 pm
Forum: Civil Aviation
Topic: Airbus A320ceo Family Production/Delivery Thread - 2020
Replies: 60
Views: 15038

Re: Airbus A320ceo Family Production/Delivery Thread - 2020

Given the mess of things that COVID made, what are our thoughts on how many of these units actually see the light of day? I don't think that Delta will back out of it's orders as it still needs to replace older frames with its purchase. Its reasonable to expect China to take the A319s and A320s they...

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by LightningZ71
Mon Apr 06, 2020 2:56 pm
Forum: Civil Aviation
Topic: Amazon Fleet Discussion - 2020
Replies: 1486
Views: 181937

Re: Amazon Fleet Discussion - 2020

On the 764 conversions, what I'm seeing is that some routes are indeed volume limited on the 763s, justifying the use of a frame with higher volume limits but not significantly higher MTOW limits. There may be a place for the 764 in amazon's network after all. I guess the question gets reduced to th...

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