Armor — far more than steel
The hull is rolled homogeneous armor (RHA), but the protection that actually stops modern threats comes from composite modules — sandwiches of ceramics, tungsten, depleted uranium and proprietary fillers. The exact recipe is a state secret. The R&D behind a single armor generation runs into the hundreds of millions, and each module is then machined to fit a specific tank.
Thermal sights
A third-generation thermal sight (long-wave IR, 1280×1024 detector) lets a crew identify a man at 4+ km in pitch dark. The detectors are export-controlled, the cryocooler that runs them costs tens of thousands of dollars and has to last a decade in a vibrating turret. A full gunner + commander sight package on an Abrams or Leopard 2 is a $1M+ line item by itself.
Fire control
The ballistic computer takes range, wind, ammo type, barrel wear, cant angle, and the lead on a moving target, and solves the firing problem in milliseconds. It's tied to a two-axis stabilizer that holds the gun on target while the tank bounces across rough ground at 40 km/h. The whole chain — laser rangefinder, computer, stabilizer, gun drive — runs into the millions.
Engine and transmission
The Abrams runs a Honeywell AGT1500 turbine; the Leopard a 1500 hp MTU diesel; the T-90 a V-92S2F diesel. None of these are off-the-shelf truck engines. A modern tank powerpack with transmission and cooling runs $500K–$1M, and the transmission alone has to absorb the torque of accelerating 70 tons to 70 km/h.
Testing and qualification
Before a single tank is delivered, the design has been driven thousands of hours across deserts, bogs and Arctic ranges; shot at with every known threat round; submerged, dropped, frozen and cooked. That test program is amortized into every unit sold. Small production runs (Leclerc, ~862 built) carry more of that burden per tank than huge ones (Abrams, ~10,000+).
What the money buys
The breakdown is rough, but typical for a Western MBT:
- ~25% armor and structure
- ~25% fire control, optics, electronics
- ~15% powerpack and drivetrain
- ~10% gun, ammo handling, autoloader if any
- ~10% comms, BMS, navigation
- ~15% assembly, test, qualification, program overhead