The Type 15 engine is 1000 kw. It's anemic by MBT standards.
The point is that it has a 30 P/W ratio whereas the Type 10 has a 27 P/W ratio without its modular armor. The T-90 apparently has a 20 P/W ratio, which is decisively poor, with the Abrams having a 17-20 P/W ratio in kw. The Leclerc has a 27 P/W ratio, and the Leo2A6 is around 17 P/W ratio.
I'm not contradicting myself, nor am I trolling. I'm pointing out a weakness of the ZTQ-15; i.e, it, as a light tank, is not designed to engage MBTs and it can't penetrate MBT frontal armor. It has to achieve a side hit, which assumes that you control the battlespace and can engage as needed.
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Put another way, the implication is that if everything goes according to plan, the ZTQ-15's lack of serious anti-tank capability is a weakness. But if everything doesn't go according to plan, a good 100mm ATGM is extremely useful because it stops ZTQ-15 vs T-90s from being a rout to being something that's dealing attrition to T-90 every step of the way.
If I were trolling, my point would be that the T-90 is a better tank than the ZTQ-15 at high altitudes. But I'm obviously aware that they're not built for the same roles, and that the ZTQ-15 has a P/W advantage and likely engine optimization for high altitude performance. The point of concern is that the PLA cannot assume that everything will go according to plan and having a more robust last-ditch anti-tank capability on the ZTQ-15 helps stabilize and enhance the situation for the PLA.
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A more interesting observation is that at some loadings, the ZTZ-99 has a P/W of 27, which is as good as a Leclerc and is within a hair's breadth of an unarmored ZTQ-15. Then why even bother with the ZTQ-15? Most likely, the ZTQ-15 is cheaper, first, and second, the ZTQ-15 likely has high-altitude optimization for mobility when the ZTZ-99's engine is beginning to suffocate.