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It's Russia's money, so they can do what they want. If it were my money, I would not. DSI dates to the 90s, with F-16 research. It produced a marginal benefit. Not enough to retrofit the fleet. Enough that it was incorporated into the F-35 (but not the F-22?? not sure).
If Russia couldn't steal or self-develop the technology in that time, they are too unmotivated to buy it, so I expect they will not.
When F-22 was developed in the 1990s, there was no DSI technology.
VTOL was all the thing for a while.
Indeed! But it isn't fully VTOL, and no one but the Marines want it - special case! I think they should put some money into A-10s instead, but... oh well.SVTOL is still a thing. It ruined the F 35 program all thanks to your USMC.
Really?
You think with 6 years between prototype YF-22 and first production F-22, it would be possible to apply some of the lessons learned from research?
- Research into the DSI was done by LMCO in the early 1990s. The first DSI was flown on 11 December 1996, installed on F-16 block 30
- In 1981 the U.S. Air Force developed a requirement for an Advanced Tactical Fighter (ATF).
- A request for proposals (RFP) was issued in July 1986 and two contractor teams, Lockheed/Boeing/General Dynamics and Northrop/McDonnell Douglas, were selected on 31 October 1986 to undertake a 50-month demonstration phase, culminating in the flight test of two technology demonstrator prototypes, YF-22 and YF-23.
- After a 90-day flight test validation of the prototypes, on 23 April 1991, SecUSAF Donald Rice announced the YF-22 as the winner of the ATF competition.
- The USAF had originally envisioned ordering 750 ATFs at a cost of $26.2 billion, with production beginning in 1994. The 1990 Major Aircraft Review led by SecDef Dick Cheney reduced the number to 648 aircraft beginning in 1996.
- The first F-22, an engineering and manufacturing development (EMD) aircraft named Raptor 4001, was unveiled at Marietta, Georgia on 9 April 1997, and first flew on 7 September 1997.
Well they should have copied it from indians.Here we fly kites with DSI technology.I think F-22B was supposed to have DSI had Obama not killed off F-22 program at F-22A.
You might find this an interesting read:Indeed! But it isn't fully VTOL, and no one but the Marines want it - special case! I think they should put some money into A-10s instead, but... oh well.