Quote:
Originally Posted by Vespers War
Weight's likely going to be an issue with that conversion. The Raketenjagdpanzer 4 Jaguar 2 carried a TOW launcher and 20 missiles, which would be around 500 kilograms total. A 122mm howitzer is about 3 tonnes on its own, and the lightest shell is ~17.5 kilograms, so 47 of those will add another 822 kilograms. There will probably need to be some internal reinforcements because the hull's designed for recoilless systems, so I wouldn't be surprised if the overall vehicle weight went from 25 tons to 30 tons. That's still not a heavy vehicle, but the engine's sized for the original vehicle, and the horsepower per ton is going to drop from 20 to 16.67. That's roughly on par with a Swiss Panzer 58 and only slightly better than an M60 Main Battle Tank.
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The howitzer is not that weight, it's 40kg lighter than the 90mm of the kanone. I suspect you are including the weight of the ground system.
That's why the amount of shells has decreased because 90mm shells are lighter than 122mm shells.
Here's the numbers:
Barrel: 4.27m
Hull: 6.61m
47x 122mm rounds.
27.5 tons.
70km/h.
122mm Howitzer: 990.65kg (21.7kg/shell) 122 x 447mmR
90mm Cannon: 1,030.00kg (19.2kg/shell) 90 x 600-615mmR
+1,800.0kg armour applique (included)