Flyaway said:USAF warms to F-22 Raptor revival proposal
https://www.flightglobal.com/news/articles/usaf-warms-to-f-22-raptor-revival-proposal-425794/
Airplane said:Flyaway said:USAF warms to F-22 Raptor revival proposal
https://www.flightglobal.com/news/articles/usaf-warms-to-f-22-raptor-revival-proposal-425794/
If Gen 6 is a roughly 2030 airplane, why wouldn't you want the F-22 in production within a couple of years from today? Are 183 Raptors going to be in service & flying in 2030? No way in hell. Can the F-22 double in brass and serve as a bomber like a F-35? Yeah. Is every F-35 mission going to involve 2 2000lb GBUs that the F-22 can't carry? Again, no way.
Flyaway said:Airplane said:Flyaway said:USAF warms to F-22 Raptor revival proposal
https://www.flightglobal.com/news/articles/usaf-warms-to-f-22-raptor-revival-proposal-425794/
If Gen 6 is a roughly 2030 airplane, why wouldn't you want the F-22 in production within a couple of years from today? Are 183 Raptors going to be in service & flying in 2030? No way in hell. Can the F-22 double in brass and serve as a bomber like a F-35? Yeah. Is every F-35 mission going to involve 2 2000lb GBUs that the F-22 can't carry? Again, no way.
It does now look the most logical option if they are going to go slow on the 6th gen.
If Gen 6 is a roughly 2030 airplane, why wouldn't you want the F-22 in production within a couple of years from today?
sferrin said:You'd think they'd have learned their lesson by now. If they "go slow" on 6th gen most of those who worked on the design of the F-22 will be retired and we'll be looking at another 20 year development cycle.
bring_it_on said:If Gen 6 is a roughly 2030 airplane, why wouldn't you want the F-22 in production within a couple of years from today?
Within a couple of years? You can't even place an order for an F-35, that has an established supply chain and get a guaranteed delivery in 2 years without looking at the backlog. It will be a minimum of 5 years before they have the workforce trained, supply chain back online and long lead parts prepped for the first few aircraft to roll off the line. And given they haven't done anything in the FY17 budget, the earliest they can start is FY18-19 which means you'll end up absorbing 100-150 aircraft well into the 2030's.
With end strength at a low and readiness at shockingly low levels as well, it would be better to get a commitment from the Congress on ensuring the current USAF new fighter jet additions are finalized before we go into some financial wizardry of actually making an F-22 re-start appear to be financially possible. A lot of these decisions would be made by the next POTUS and we really need to get out of the BCA and BBA mess before we actually have a coherent plan to fund readiness and modernization in a consistent way. In the absence of that we'll keep getting mixed signals.
Arian said:I wonder how Boeing manages to make 777s now that everyone who worked on 747 retired?
Grey Havoc said:Arian said:I wonder how Boeing manages to make 777s now that everyone who worked on 747 retired?
Recently not that well, by all accounts (in particular, outsourcing proved to be a major disaster, to put it mildly).
Grey Havoc said:Arian said:I wonder how Boeing manages to make 777s now that everyone who worked on 747 retired?
Recently not that well, by all accounts (in particular, outsourcing proved to be a major disaster, to put it mildly).
Yes.Arian said:Knowledge in companies goes away with the people?
Boeing built two new designs and refreshed a third in the time between the 747 and 777. In the general sense, that's what you want to do--you want to have people being involved in at least two or three program development cycles over their careers (and preferably throw them into the support side for a while, too). In doing so, a lot of that knowledge gets passed along to the new guys from the old graybeards--stuff like "yeah, we tried that before, and it didn't work, and here's why". Anyone can look at a drawing and see what was done on the old airplanes; having the old guys around tells you why it was done that way. This goes all the way up the chain, from the guy bucking rivets on the production line to the design engineers to the VPs managing the program.Arian said:sferrin said:You'd think they'd have learned their lesson by now. If they "go slow" on 6th gen most of those who worked on the design of the F-22 will be retired and we'll be looking at another 20 year development cycle.
There's no new engineers graduation? No new engineers being hired? Knowledge in companies goes away with the people? I wonder how Boeing manages to make 777s now that everyone who worked on 747 retired?
Arian said:There's no new engineers graduation? No new engineers being hired? Knowledge in companies goes away with the people? I wonder how Boeing manages to make 777s now that everyone who worked on 747 retired?
There was an engineer who had an exceptional gift for fixing all mechanical things. After serving his company loyally for over 30 years, he happily retired. Several years later his company contacted him regarding a seemingly impossible problem they were having with one of their multi-million dollar machines. They had tried everything and everyone else to get the machine fixed, but to no avail. In desperation, they called on the retired engineer who had solved so many of their problems in the past.
The engineer reluctantly took the challenge. He spent a day studying the huge machine. At the end of the day he marked a small X in chalk on a particular component of the machine and proudly stated, 'This is where your problem is!' The part was replaced and the machine worked perfectly again.
The company received a bill for $50,000 from the engineer for his services. They demanded an itemized accounting of his charges. The engineer responded briefly:
One chalk mark .. ..... ..... $1
Knowing where to put it ..... $49,999
AeroFranz said:And by the way, the experience only translates so far if you work on different types. Having worked on say, a commercial airliner is not going to help you as much on a carrier-based stealthy UCAV program. Douglas was hugely successful in selling carrier attack planes to the navy because they had a group of designers that worked on the type for nigh thirty years uninterruptedly (SBD, A-1D, A-2D, A-3D, A-4D, F-3D, F-4D).
sferrin said:Yep, same with Grumman. It's also why Lockheed and Northrop had such an advantage on the ATF after stealth was added to the mix. All of a sudden the fact that it'd been decades since either had built a fighter didn't matter as much.
sublight is back said:sferrin said:Yep, same with Grumman. It's also why Lockheed and Northrop had such an advantage on the ATF after stealth was added to the mix. All of a sudden the fact that it'd been decades since either had built a fighter didn't matter as much.
Lets not forget Boeing was working on a Stealth Jet way before Lockheed or Northrop. I cant remember if Boeing passed on XST or wasn't invited. They may have been working on a follow on platform for another service or agency.
Bill Walker said:My 6 years in aerospace engineering university (B.Sc and M.Sc.) didn't make me a competent engineer. It got me ready to go learn all that stuff on the job, from older experienced engineers.
Recently not that well, by all accounts (in particular, outsourcing proved to be a major disaster, to put it mildly).
Boeing built two new designs and refreshed a third in the time between the 747 and 777. In the general sense, that's what you want to do
AeroFranz said:Once they retire, that knowledge is gone; there just isn't a mechanism to transfer the knowledge other than every day work alongside a mentor.
This is the reason aerospace companies will often bring subject matter experts back from retirement as consultants.
This reminds me of the story of the consultant engineer
Bill Walker said:Because the engineers on the first 747 trained the engineers on the 757, who trained the engineers on the 767, who trained the engineers on the 777 . (A bit of oversimplification, but you get the picture.) No gaps, lots of overlap in the design office. The bigger gap to the 787, plus the decision to outsource engineering to firms without complete large aircraft experience, were a major source of delays and problems on the 787.
My 6 years in aerospace engineering university (B.Sc and M.Sc.) didn't make me a competent engineer. It got me ready to go learn all that stuff on the job, from older experienced engineers.
AeroFranz said:Yes.Arian said:Knowledge in companies goes away with the people?
sferrin said:If Boeing was invited to XST they lost, behind Lockheed and Northrop. I seem to recall that just about everybody EXCEPT Lockheed was invited to that.
sublight is back said:sferrin said:If Boeing was invited to XST they lost, behind Lockheed and Northrop. I seem to recall that just about everybody EXCEPT Lockheed was invited to that.
Boeing did not lose. Boeing did not respond to the DARPA RFP for XST because they were working on something similar for somebody else.
sferrin said:Interesting that they wouldn't want to kill two birds with one stone. (That Boeing wouldn't that is. That they were already working on something similar would seem to have given them a leg-up IMO from their POV.)
sublight is back said:Boeing did not lose. Boeing did not respond to the DARPA RFP for XST because they were working on something similar for somebody else.
Perko requested White Papers from five companies - Northrop, McDonnell Douglas, General Dynamics, Fairchild, and Grumman - addressing two topics. First, what were the signature thresholds that an air vehicle would have to achieve to be essentially undetectable at an operationally useful range? Second, what were the capabilities of each company to design and build and aircraft with the necessary low signatures? Fairchild and Grumman did not express any interest in participating. The General Dynamics response emphasized countermeasures and had little substansive technical content regarding signature reduction. McDonnell Douglas and Northrop responded indicating a good understanding of the problem and at least some technical capability for developing a reduced-signature air vehicle. In late 1974 these two companies were awarded contracts of approximately $100,000 each to conduct further studies.
The urgency was a result of the tight DARPA competition schedule. In the spring of 1975 Lockheed, Northrop, and McDonnell Doughlas were the three participants in the program of which Lockheed was the newcomer.
quellish said:The urgency was a result of the tight DARPA competition schedule. In the spring of 1975 Lockheed, Northrop, and McDonnell Douglas were the three participants in the program of which Lockheed was the newcomer.
quellish said:Boeing was not invited to be part of the process.
sferrin said:Why did Boeing decline given they were already working on a similar project for another customer?
sublight is back said:Boeing was not magically "skipped over".
quellish said:sublight is back said:Boeing was not magically "skipped over".
If you talk to the people involved on the DARPA side that is not the story you hear.
sublight is back said:Well of course not, especially if the customer caught wind of the initial engagement and demanded it cease immediately.
Flyaway said:http://www.popsci.com/best-air-superiority-fighter-in-history-grounded-by-bees
Ian33 said:when the F22 just rolled over, and flopped backwards to be pointing towards the part of the sky the Typhoon was turning into.
Utterly flummoxed me,
Ian33 said:Was watching the Typhoon and F22 mock dog fighting over Cape Wrath, and it's a sight I'll never, ever forget. Typhoon and F22 were in a tight turn, streaming trails, when the F22 just rolled over, and flopped backwards to be pointing towards the part of the sky the Typhoon was turning into.
Utterly flummoxed me, I would of doubted it was even possible had I not seeneed it with my own eyes.
Airplane said:Excess thrust + TV + wing loading. All that the 35 doesn't have. But, hey, maneuvering fights are dead or don't ya' know about the aim9x?