Void said:
It is still a rather goofy idea - it is trying to turn a tank into a rolling attack helicopter
That's not the point of this concept, at least not to replace tanks where they're supposed to operate, ie in the open.
The future armored platform will be light, agile, small ... and designed primarily for operation in urban areas
Says exactly the opposite: provide protected fire support where tanks are too clumsy.
To me, this looks like heyl shiryon is building on the lessons drawn from fighting in high-rises urban areas, with the makeshift use of M163 Vulcans to reach the skyscrappers' upper storeys. It's creating a purpose-built vehicle with the right arc of fire and connectivity.
Urgency is increasing, with Iran upping their threats of a major war through their hezb'allah puppets now that they see the end of the Syrian quagmire. Last week Iranian generals spoke again about burning Haifa and TA. If they insist enough, the IDF just might have to go back to Beirut to clean them up, and those godcrazies will again use every densely populated area as hideout.
Hence the requirement for Carmel-type equipment...
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On the design: I would question the use of caterpillars. For urban areas, 6x6 or 8x8 wheeled should be enough, and be faster, cheaper, longer-operating, etc.