ukdefencejournal.org.uk
F-15J uses it too, probably more prolifically. Mica NG will have an AESA seeker but I’m not sure if it’s in service. The UK and Japan are working on putting the AAM-4 seeker on the Meteor as well. AAM-4B is the only one I’m sure is in service though.
m.blog.naver.com
...and likely greater reliability.
Yea, it’s based off the AAM-4 seeker but correct it’s not literally the same. AAM-4 GaAs seeker, JNAAM GaN.
JNAAM budget was not reflected in Japanese FY2023 budget, meaning that it's probably scrapped. If the programme is officially cancelled, and when it is, the reason behind it, is not provided.
You're citing old news. I'm talking about a report from April this year. Also I made a mistake in saying that "it is not provided if the programme is officially cancelled", but revisiting this matter, I've found that the programme is indeed officially cancelled, as shown with below statement on official document :Huh?
Japan Approves 26.3% Increase in Defense Spending for Fiscal Year 2023
For the ninth year in a row, the budget draft set a new record for Japan’s national defense budget.thediplomat.com
According to Japanese sources (no hard evidence in document), the biggest reason JNAAM was shelved was due to the French opposition, since Meteor missile seeker is a joint programme between Thales and MBDA's seeker division. They feared that they would lose workshare to the Japanese since the JNAAM seeker was essentially a Japanese design and product. There are also other problems mentioned as well, but also unconfirmed. Anyways, if true, it will mean that joint Japan-Britain AAM for GCAP will be developed from scratch. I'm not sure if the British counterpart would be willing to fund a new missile so soon after Meteor. They probably would utilize seeker technology Japan transferred during the JNAAM programme. Same for Japan.
No, it seems like it's actually canned, since the follow on test programme after the test programme in UK was concluded was supposed to take place in Japan. All the related documents regarding the programme, such as test instrument and test data processing contract tenders were gone by the time the budget allocation was null.
Well it depends on how you define "threw away". To me JNAAM programme at this point of time has been more of technology sharing programme. Seeker tech from Japan to Britain, and solid state integrated ramjet propulsion technology for air to air missile from Britain to Japan. How they'll leverage the shared technologies and experience gained from integrating the two, that we'll see from what they decide in the future.
At least there are some convincing rumours.
No need to be sorry about questioning legitimacy/implications. All good.
That is not entirely true. One of the key advantage of ramjet missile is the ability to reduce thrust in start and mid phase if the target is at long range. By reducing thrust, they can have lower cruising speed and that can reduce drag and fuel consumption significantly, as a result, they still have fuel to accelerate at terminal phase. Normal solid fuel rocket often use all their fuel in 4-5 seconds right after launch and coasting in terminal phase.
What nonsense you wrote. Air-to-air missiles use solid fuel in their composition, they cannot regulate the thrust or the burning rate of fuel, unlike such missiles as 3M8 or X-31A, P, 3M80, etc. where liquid fuel is used.Gorenje They will always have increased drag, because the rocket is moving at supersonic speed, and an additional shock wave is formed at the entrance to the air intake
Do some basic research before you claim something is nonsense.
Drag is proportional to speed square, slower velocity mean lower drag, simple as that.
the resistance is still orders of magnitude higher than that of conventional missiles, and the problem with the angles of attack and sliding has not gone away, since the RAMJET uses air as an oxidizer.So a flight above 20km is not possible
