there radars are already powerful jammers.
That's pointless and doesn't contribute to stealth. All it does is work against existing fire control radars.
For active cancellation you need to be able to work through the entire relevant spectrum. And using up radar for ECM would mean less capability when using actual radar functions. I mean, if you compare the larger aperture of the F-35 with 1400 modules versus Rafale's radar with 1100 modules, and if you end up using 300 modules of the APG-81 for EW and datalink, then your actual radar capability is the same as the RBE-2AA. At the same time, the Rafale is capable against the entire spectrum while the F-35 isn't.
Development of F35 to a degree did but it's procurement was really pushed as the Air superiority role was considered less need because of the shift.
You can use a Cessna for air superiority in asymmetric missions.
When X35 flew it's mission was defined as a strike fighter. It was aimed to be a strike fighter form the start with some air to air. it was always aimed to replace F16 and hornet and the Marines and Royal navy sweet talked there Harrier needs in. but it was only to take the Lighter roles well For the Navy and Airforce NATF and ATF (F22) would take the Air Superiority replacing F14 Tomcat and F15 Eagle. first the NATF was Cancelled In it's place F/A18 Super Hornet was bought, This was because the Wall fell and then the USSR dissolved. so the Navy stayed with a 4.5+. Then the numbers of Raptors started to slip as well as cuts to the radar and IRST. and by full production the missions in Iraq and A-stan were full swing. and since Raptor only started hitting targets this year. Congress and the Admins of both the Obama and Bush presidencies allowed the Raptor to take the cut because it was felt that it was not needed. it was felt that the only Air Forces the Us would really need to worry about were The Cubans, North Koreans and Iranians with Forces that were deemed better for Air Museum display then combat. and that 99% of the missions would be JDAMS and Hellfires. and Drones were better for that. So the Raptor program was gutted and the Lightning II program was piled on.
This is US specific, not Japan or Israel specific. Don't get me wrong. Everything that's planned for the F-35 is perfect for the US.
When it comes to air superiority the USAF has the F-22. But Japan, Korea, Israel and Australia miss this capability.
When it comes to strike, the USAF has the F-35. It has a large payload, plenty of gas, and plenty of tankers. So it carries enough payload to enough distance. Though I'm sure this is lesser than what the Australians or some of the other partners want.
When it comes to long range strike, the USAF has the LRS-B. Australia, maybe Japan, sorely want this capability, but will most likely not get it.
So as far as the USAF is concerned, everything is good for them. But the partners are expected to use the F-35 even in roles that the LRS-B and the F-22 are designed for. Basically, not one of the partner nations are capable of waging war at the same level as the USAF. And even when using the F-35, they require the USAF tanker fleet for support because they themselves cannot afford many supporting aircraft.
None of this was such a big issue during the F-16/F/A-18 era.
but has we have seen the projections these choices were based on were short sighted.
Probably more to do with selling the F-35 than an actual risk aversion strategy.
"Let's cancel the F-22 and put all our money in the F-35. Then let's force everybody else to buy the F-35 by preventing the export of the F-22 (while also protecting secrets, two birds with one stone strategy)." That was probably Gates' Vision 2020.
But Japan, Australia and Israel wanted Raptors.
Japan and Israel operate F-15s too. They have the need for an air superiority platform.
Not Quite. Both the Navy and Air Force have Requirements. Super F35 is a fall back. the navy saying "Well if the budget looks it. we might not need to but" but the Navy has to be looking around and and seeing where trends are and what are the threats. for the first time since the end of the second world war the 2040's will have a wide list of nations with carriers and carrier fighters. and not just the Vtol types popular to Nato or the Carrier/Cruiser of Russia. India and Brazil nations that were considered lesser powers are both getting into it more and more seriously. the PRC is jumping in and has ambitions for being a Naval power. Russia has been talking big about carriers and Although shown little in that way other then talk, Things can change by the 2030's and if the PRC starts building carriers they might just export them to. Japan seems to be working it's way to it as tensions in SEA ratchet. On those decks there are going to be eventually Fifth Gens. even if it's just Pak-fa-K on the Kuznetsov it's going to happen. when it does thee USN is going to need a Air superiority fighter that can handle that.
Yeah, it is yet to be seen if there is a true blue 6th gen program by the navy. The air force appear to be going for one.