J-20 5th Gen Fighter Thread IV (Closed to posting)

Status
Not open for further replies.

Jeff Head

General
Registered Member
Oh My Dear >>>removed<<<

He is just like the other >>>removed<<< trolls >>>removed<<<. They are immortal trolls !! :mad:
:D
Aero, READ THE RULES

We do not allow comments which would be offensive to other nationalities or cultures.

Just as their persistent violation of the rules led to their removal from SD, that type of violation, if persisted in, can too.

So a word to the wise. Nothing wrong with indicating that you agree with particular members being removed for violation of rules. However, if it crosses over to attaching what they did to whole nationalities, or making fun of their culture or religion...that also is a violation of SD rules.

Cheers.
 

xiabonan

Junior Member
Uh, actually I do not think that is the case at all.

We do not know how long the development of the J-20 is taking. We do not know exactly when it started, and we certainly do not know when it will produce a production aircraft yet. So we cannot know this.

We do know this about the F-22.

  • 1981 mid-year: US Air Force develops initial ATF requirement, which included composite materials, lightweight alloys, advanced flight-control systems, more powerful propulsion systems, and stealth technology. No designs had started at this point.
  • 1986 Jul: US Air Force puts out a Request for Proposal (RFP) for the ATF.
  • 1986 Oct: Lockheed/Boeing/General Dynamics and Northrop/McDonnell Douglas selected to develop designs for a 50 month demonstration phase to produce and test two flying prototypes each.
  • 1990 Sep: 1st prototype F-22 takes flight, just over four years after design started.
  • 1991 Apr: Lockheed Martin awarded contract for ATF to produce F-22 fighter.
  • 1997 Apr: 1st Production F-22 unveiled at factory in Marietta Georgia, six years after contract awarded
  • 1997 Sep: 1st flight of production F-22.
  • 2003 Jan: 1st production F-22 delivered to US Air Force, five and to-thirds years after first flight.
  • 2005 Dec: F-22 achieves Initial Operational Capability (IOC), 18.9 years after design started, just under three years after initial delivery.
  • 2006 Jun: In combat training debut, at Northern Edge exercises, 12 F-22s of the 94th FS down 108 adversaries with no losses.
  • 2007 Dec: F-22 achieves Full Operational Capability, four years after initial delivery.
  • 2011 Dec: Last of 195 production F-22 produced. 25 years after design started, and jut under nine years after initial delivery.

Which leads to the following time frames regarding the F-22:

- 5.00 years from initial requirement to award of contract
- 4.00 years from initial design to flying prototype.
- 6.00 years from contract award to first production aircraft
- 6.00 years from first production flight to first delivery to US Air i Force
- 3.00 years from first delivery to IOC
- 4.00 years from first delivery to Full Operational Capability.
- 9.00 years from first delivery to final aircraft.

We do not have as much detail on the beginnings of the J-20, but we do know this:

  • 1998 time frame PLAAF develops J-XX requirement.
  • 2006 time frame PLAAF has design competition between Chengdu and Shenyang for Project 718.
  • 2008 PLAAF awards Chengdu the contract to build the J-20.
  • 2010 Dec: 1st Prototype J-20 makes taxi tests and is unveiled to the world.
  • 2011 Jan: 1st prototype J-20 first flight.
  • 2012 May: 2nd prototype makes first flight.
  • 2014 Mar: 3rd Prototype makes first flight.

This is all we know. But matching that up to the miles stones from the F-22 w find:

- 10.00 years from initial requirement to award of contract
- 04.00 years from initial design to flying prototype.

So, in terms of the time from the first requirement to awarding a contract, the J-20 took twice as long as the F-22.

In terms of the time from the award of the contract to the first flight of a prototype, the J-20 and the F-22 took the same amount of time.

Now, if the J-20 makes an initial in service date by 2019 like they are talking about, then it will move ahead of the F-22 time line by several years.

But that hasn't happened yet.

As of right now, they are similar in their production and development schedules. The J-20 is certainly not being done in 1/3 the time by any measure at this point.

Word used in official media is not "development of J20 took 1/3 the time" but "design......." if I didn't recall wrongly.
 

Jeff Head

General
Registered Member
Word used in official media is not "development of J20 took 1/3 the time" but "design......." if I didn't recall wrongly.
Yes, well, as I say in that case, looking at the time from award of contract to rolling out the first flying prototype, they are the same amount of time.

We will see how long it takes to flying the first true production aircraft, and then how long to IOC. IMHO, the design continues to be refined right up until Operational Capability.
 

Air Force Brat

Brigadier
Super Moderator
Supposedly 2012. Hasn't it been the pattern that when one leaves for Yanliang, the new prototype shows up?

So far that has been the case, the timing is always up in the air???? so it does seem to be about time, and this would be our fourth flying prototype. Shame the early openness and pride in this aircraft has been "shut down", there was so much to be learned, and I must say enjoyed early in this program after Gate's visit, oh well???? but this just stinks, this used to be the preeminent thread on the Sino Defense forum, now its just a brackish back-water. I'm rather certain the lack of lots of cash has kept things rather close to the vest, no more flashy big-spenders????
 

delft

Brigadier
So far that has been the case, the timing is always up in the air???? so it does seem to be about time, and this would be our fourth flying prototype. Shame the early openness and pride in this aircraft has been "shut down", there was so much to be learned, and I must say enjoyed early in this program after Gate's visit, oh well???? but this just stinks, this used to be the preeminent thread on the Sino Defense forum, now its just a brackish back-water. I'm rather certain the lack of lots of cash has kept things rather close to the vest, no more flashy big-spenders????
I'm very sure the PRC system for financing aircraft development doesn't resemble the US system.
 
Status
Not open for further replies.
Top