Challenger 3 MBT - Technical Data and Discussion

The SEPs are fine at 12.0, base M1A2 should move to 12.0 as well, M1A1 HC should lose M829A2 for M829A1 and stay 11.7.

CR2E and BN would be close enough to the M1A1 HCs w/M829A1 in terms of capabilities.

With a weaker shell, then yes, it would be on par ish, especially with CR2 overhaul

Even with the Sky Sabre being broken af and underperforming, its still somehow got the second highest K/D of any rank 8 vehicle

do we have a list of upgrades the challenger 3 has gotten since we first saw it? obviously it got new armor recently but do we know anything about a better engine?

All we know is that it has an “upgraded” engine called the CV-12-9A

We don’t know the exact horsepower, its somewhere between 1200-1500hp.

We know:

  • The Challenger 3 is claimed to be faster than the Challenger 2.
  • The engine has improved cooling.
  • The engine has improved reliability.
  • The engine may have improved fuel injection.
  • The engine has other improvements not stated.
  • The tanks top speed is 60kph (a tiny bit faster than the Challenger 2)

The transmission and suspension are also upgraded.

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Gaijin:

“1200hp you say as the report for the 1300hp doesnt cover that specific engine.”

:P

But heres hoping that if we ever get the CR3(P) it has a little better acceleration than the current set

They’ll find a way out of it lol

Regardless of the horsepower, the the Challenger 1/2/3s engines have a comparitively high amount of torque for their horsepower. So they’re already underperforming in terms of that, regardless of their horsepower.

The CR3 even if it has 1200hp should still be faster than the CR2 as its got better suspension and a better transmission. However, gaijin are too lazy to model these ingame (look at the Type 10)

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Yep, and its not the top speed that bothers me, its the lack of any meaningful torque

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acceleration > top speed any day

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Yep, agreed.

How much torque should it have? and how much faster would it propel the MBT than the current disaster?

CV12:

Torque:
1200hp rating → 4035 nm
(1500hp rating → 5318nm)

Leopard 2 MTU:

1500hp → 4700nm

Torque difference: 16%
HP difference: 25%

Torque matters most for low speeds, but as the CV12 has comparitvely higher torque than HP, it would benefit it to model torque.

With the CV12 and MTU both rated at 1500hp, the CV12 significantly outperforms the MTU engine in terms of torque with the same HP for both. Then the Challenger 2 would accelerate noticably faster ingame.

Modelling the torque would not increase the top speed at all, that is dependant on the transmission, but it would improve the acceleration. It would make the tank more responsive and faster to start moving from a stop especially. I also imagine it would improve the neutral traverse speed.

Theres the document for the CV12 engine specs, im not sure if they’ve changed for the CV12-9A but it should be similar

Horsepower is calculated using torque.

The formula is:
(torque x RPM) / 5252

If we apply this for the CV12:

The torque must be in ft/lb.
(4035nm = 2976 ft/lb)

(2976 x 2300) / 5252 = ~1303 Horsepower for the CV12

This actually matches relatively close to the 1296bhp (DIN) listed in several Challenger 1 brochures for the CV12.

image

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Would also help it a lot on hills right?

Yeah it would help with

  • Hill climbing
  • Accelerating from a stop
  • Neutral steering
  • Low speed acceleration in general

Which imo is mostly what makes the Challengers feel sluggish, their high end speed is actually not bad

Yep. What could be if Gaijin actually modeled things with at least a little effort

They could solve it without modelling torque by increasing the horsepower to the 1296 BHP (1314ps) figure listed on the Challenger 1 documents.

That would both be historical as its listed in documents and essentially model the torque, as then their would only be around a 14-15% difference in HP between 1314 and 1500, rather than the 25% difference between 1200 and 1500.

That much more closely matches the torque difference.

Yep… but gotta wait the pre-requisite 18 months for that

only 18 months, thats optimistic for gaijin lol

The real issue comes from the fact gaijin has modelled the driving characteristics of all tanks ingame to be way too simple, horsepower means everything and the other huge factors from real life are completely ignored. They haven’t even modelled regenerative steering.

Its just a pre-requisitie. The minimum time. I doubt it will ever be changed :D

Me neither, im just coping we get renegerative steering sooner rather than later