Neptune anti-ship cruise missile

TomS

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Probably worth starting with a description of the weapon itself. It appears to be a development of the Kh-35 Uran (SS-N-25, nicknamed "Harpoonski" for it's resemblance in size to the US Harpoon) The attached PDF is a page from the State Kyiv Design Bureau brochure with the official specs. The ability to launch from 25km inland of the coast is significant, since it dramatically expands the area one would have to cover to find the launcher.

First operational units apparently delivered in March.
 

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Archibald

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So, is Slava dead or alive ? We presently have a Schrodinger cruiser... Ukrainian says "we sunk the hell out of it" Russians answer "nah, it is under way to safety, although still burning..."

This is Ukraine Styx / Eilat (1967), Exocet / Sheffield (1982) moment...
 

TomS

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So, is Slava dead or alive ? We presently have a Schrodinger cruiser... Ukrainian says "we sunk the hell out of it" Russians answer "nah, it is under way to safety, although still burning..."

This is Ukraine Styx / Eilat (1967), Exocet / Sheffield (1982) moment...

Already being discussed elsewhere, and there is good reason to separate the Moskva discussion from the technical discussion of Neptune.

 

Flyaway

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So, is Slava dead or alive ? We presently have a Schrodinger cruiser... Ukrainian says "we sunk the hell out of it" Russians answer "nah, it is under way to safety, although still burning..."

This is Ukraine Styx / Eilat (1967), Exocet / Sheffield (1982) moment...
This is for just technical stuff on the Neptune there is an existing thread in The Bar for the other stuff.
 

Trident

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Neptune as a development of the Soviet 3M24 makes an interesting contrast to its Russian counterpart, the Kh-35U, with both aiming for range improvements but doing so in different ways. As the turbojet engine of the original missile was supplied by a Ukrainian manufacturer, the Russians substituted a more efficient, domestically produced turbofan while keeping airframe size largely the same. Due to the greater diameter of the new engine, it is installed in an off-center, semi-submerged configuration as opposed to fully buried as in 3M24 and Neptune.

The latter meanwhile significantly increased length and weight to accommodate more fuel (fair enough, the basic 3M24 is extremely compact). This apparently required the Ukrainians to develop a new booster, which unlike its Russian equivalent is smokeless (or at least reduced smoke). Neptune also has an interesting seeker that appears to use a different principle to the conventional slotted array of the 3M24 (shown on the first photo below, not sure about the Kh-35U). Might be AESA (second photo)?

1_BXC7PVQjIuRrjh1uJUIdrQ.png IF5nGfv.jpg

Where it gets really intriguing is the North Korean KN-19 AShM, which is generally held to be a 3M24 development. If you examine available footage of it more closely, it seems to be less of a direct clone of the Soviet original, the Kh-35U or a "third way" than a Neptune copy though. It retains the buried engine, has the longer airframe and the booster is smokeless! Since Russia seems to be actively supporting the *South* in missile development (KM-SAM/S-350 and more pertinently the Oniks-like supersonic AShM), aid to the North seems unlikely.

Note: I'm not saying the Ukrainians must have necessarily been aiding NK actively, either. Given its proclivities for cyber espionage and similar shady dealings, there are plenty of other ways how it might have obtained the tech. Consider the KN-24 SRBM which is essentially an ATACMS clone - do we seriously expect the US to have lent a hand here? Thought so :)

EDIT: To illustrate - first pic, very smoky Kh-35U booster exhaust and semi-exposed, short-duct engine; second, KN-19. Compare and contrast with the Nepture photo in Abingdon's post above...

34raehtyz.png rgdxeuztz.png
 
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Forest Green

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Satellite Image Pinpoints Russian Cruiser Moskva As She Burned​


1650224432165.png
 

kocovgoce

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What if Neptune could be rebuilt as a cruise missile to hit targets on the ground
 

TomcatViP

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What if Neptune launchers could be compatible with Harpoon...

Oh, wait, reportedly, they are....

Probably a very powerful statement from the Biden administration, that even took the risk to make a statement before the events.

Meanwhile, in France, no Puma Helicopters have been yet delivered....
 

kocovgoce

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What if Neptune launchers could be compatible with Harpoon...

Oh, wait, reportedly, they are....

Probably a very powerful statement from the Biden administration, that even took the risk to make a statement before the events.

Meanwhile, in France, no Puma Helicopters have been yet delivered....
maybe the guiding head it is from harpoon put on body of neptune
 

TomS

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What if Neptune launchers could be compatible with Harpoon...

Oh, wait, reportedly, they are....

Probably a very powerful statement from the Biden administration, that even took the risk to make a statement before the events.

Meanwhile, in France, no Puma Helicopters have been yet delivered....

Source for the claim that Harpoon and Neptune are compatible. It seems unlikely on first glance.

And what Biden Administration statement are you talking about?

maybe the guiding head it is from harpoon put on body of neptune

This seems very unlikely. Ukraine has been working on Neptune for quite a few years and have shown a very credible looking seeker (above) that is NOT Harpoon's.
 
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