Well, well, well. Japan's long-discussed stealth fighter program has stepped into the spotlight. A technology demonstrator, the Mitsubishi ATD-X, is no longer just a rendering. It's real, and it has a fantastic paint job:
Red-tailed and radar evasive. (photo from theaviationist.com)
The plane looks to be about the size of an F-16, and it bears repeating that this isn't a production model--it is for testing technology. In this case, radar-evading technology. The hope is that it is the first step of a home-grown Japanese stealth fighter, tentatively designated the F-3.
It's really tough to tell what the ATD-X is all about--beyond scale--based on the pictures. It has the familiar angles of a stealth fighter, designed to reflect radar energy away from the transmitter. It is probably just a single-seat aircraft; few fighter prototypes aren't. It probably also is not treated with any radar-absorbing material; there would be little point in doing so and then adding a glossy paint job on top of it. And based on the shape of the wings and fuselage, it's probably designed to be supersonic. You can't see the engine exhaust clearly, so it's impossible to see whether the nozzles are stealthy or even designed to vector thrust.
Regardless, this is a big deal for a bunch of reasons. But there are two big ones. The first is that depending on how fast things go, it would make Japan the second, third or fourth nation on the planet to produce its own stealth aircraft (behind the U.S. and potentially Russia and China).
And the second is that it would take away a potential market for the F-35. That would mean a bunch of money lost for Lockheed Martin, which is working hard to sell the fifth-generation fighter in Asia and Australia. Worst-case scenario for LockMart, Mitsubishi could produce an exportable fighter itself, pulling away even more customers--although this seems unlikely.
It's hard to say what capabilities the F-3 might have, or how they might stack up to whatever is flying in 2020 or beyond. The state of the art has not been static, and indeed it's worth remembering that the first prototype stealth fighter flew more than 30 years ago.
All the same, Japan has a capable industrial base and a deserved reputation for mastery of high technology. This is a big step for the country's aviation industry... and another neat-looking airframe for aviation dorks to watch develop.