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    Kalibr missile system

    GarryB
    GarryB

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    Post  GarryB on Mon Dec 23, 2019 9:42 am

    A change of propulsion from turbojet to scramjet and a new nose design... it is not like the original missile was a high drag low speed design...

    For all we know they might have a new design with fuel lines running the length of the missile where fuel from the main fuel tank is pumped into a tank in the nose and heated by friction and then pumped back and sprayed into the engine hot to increase its energy and to cool the nose... right at the rear it could have a downward looking radar scanning the ground... navigation systems lose accuracy over time but knowing its position at launch and then flying from a known point to another known point with a radar looking down so it sees any island the missile passes over, or the shape of the beach and land as it approaches the target it probably would not need terminal guidance... its accuracy should be pretty good based on terrain comparison and altitude sensors on its way to its target...
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    Azi

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    Post  Azi on Mon Dec 23, 2019 3:41 pm

    Viktor wrote:Point is 1.8 km/sec is hyper sonic speed. Fact Russian portal is mentioning it means 3M-54E received upgrades since the first time it was introduced.

    Who could have guessed Kaliber missile can be upgraded to hyper sonic speeds and given its time already in service if the upgrade does not require any major

    mechanical modification which was most likely one of project task for its modernization we are seeing almost momentarily shift of Russian navy towards hyper sonic weapons.
    It's a mistake! Kalibr with average speed of over 6500 km/h is not a Kalibr anymore. The change in nearly everything would make it a Zirkon and this not possible with only a "upgrade", it needs a complete new constrcution of nearly everything.

    By the way...found no other information. Probably the test was a Zirkon and they wrote just Kalibr, or ot was a Kalibr and the flight time was just wrong written.
    Viktor
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    Post  Viktor on Mon Dec 23, 2019 9:50 pm

    Azi wrote:
    Viktor wrote:Point is 1.8 km/sec is hyper sonic speed. Fact Russian portal is mentioning it means 3M-54E received upgrades since the first time it was introduced.

    Who could have guessed Kaliber missile can be upgraded to hyper sonic speeds and given its time already in service if the upgrade does not require any major

    mechanical modification which was most likely one of project task for its modernization we are seeing almost momentarily shift of Russian navy towards hyper sonic weapons.
    It's a mistake! Kalibr with average speed of over 6500 km/h is not a Kalibr anymore. The change in nearly everything would make it a Zirkon and this not possible with only a "upgrade", it needs a complete new constrcution of nearly everything.

    By the way...found no other information. Probably the test was a Zirkon and they wrote just Kalibr, or ot was a Kalibr and the flight time was just wrong written.

    It could be a mistake we can not know but it could be that it is not. It could be that the reporting is correct. How could we know?

    Russian PVO missiles have achieved 2+km/sec and as 3M-54 missile is already multistage missile it could be that the Russians where testing last stage with more energetic fuel than

    was before.
    GarryB
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    Post  GarryB on Tue Dec 24, 2019 3:32 am

    If it was an identification error then it certainly wont be Zircon... which is supposed to travel almost twice as fast as 1.8km/s... perhaps what was tested was the Onyx with the new higher energy fuel... it would make sense for its speed to pretty much double... from about 900m/s to 1.8km/s... they had already mentioned that as being the case...
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    tomazy

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    Post  tomazy on Tue Dec 24, 2019 8:54 am

    GarryB wrote:If it was an identification error then it certainly wont be Zircon... which is supposed to travel almost twice as fast as 1.8km/s... perhaps what was tested was the Onyx with the new higher energy fuel... it would make sense for its speed to pretty much double... from about 900m/s to 1.8km/s... they had already mentioned that as being the case...

    You have to account for the accelaration of the misile, Zircon does not leave the launch tube at 3,6km/s speed. But I have no idea how fast it accelerates or for how long.
    GarryB
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    Post  GarryB on Tue Dec 24, 2019 9:24 am

    Zircon would be a combined scramjet rocket probably with a solid rocket booster... much like the Onyx, except Onyx has a ramjet rather than a scramjet.

    A cold launch system or the solid rocket booster will blow or push the missile up out of the vertical tube and into a vertical climb... when it burns out the nose mounted intake cover will be jettisonned, and then the internal solid rocket motor will fire to continue the climb and acceleration... but the internal solid will burn until the cavity it creates inside the missile is empty and the remaining internal structure is blown out the back of the missile and air starts flowing in through the front intake and the ramjet/scramjet lights up to accelerate the weapon to operational speed.

    Acceleration with the solid rocket motor will be relatively fast, though the focus will be on climbing to thinner colder high altitude air where the ramjet/scramjet will have more power and more effect because the missile will be in a lower drag environment and be able to move faster through the air.

    Over a distance of 250km... even a 1,000km range missile like Zircon should be getting there rather faster than an average of 1.8km/s.

    A short while ago the Russians stated that with new types of high energy fuel and a few design changes... presumably aerodynamic shape and intake design, that they could increase the flight speed of Onyx to mach 5... now if you work it out... the speed of sound being about 350m/s then 5 times that is... pretty close to 1.8km/s... in fact it is 1,750m/s...

    It is as logical an explanation as I can think of... I mean they have been talking about Zircon for a while now... the name is not secret... why would they call it Kalibr now?

    Of course equally they might have developed a new Kalibr family member that could perhaps replace the supersonic version with the rocket powered final stage with a scramjet powered final stage that extends the final high supersonic portion to a 250km hypersonic portion... In action it might cruise subsonically at medium altitude for 1,500km perhaps and then launch a hypersonic terminal stage that can now fly 250km to the target and they were just testing the terminal component...

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