US Tank Prototypes

Unknown Abrams Block-III MBT

New Turret and Main Gun 
From Chinese Internet
 








 
 
Prototype Abrams Block-III MBT (CATTB)
 


Concept vehicle of Block-III MBT program Prototype with new turret, autoloader and modular armor. Its main armament was XM291 smoothbore gun 120mm barrel, Breech could fit 140mm, The breech was designed to use both 120mm and 140mm ammunition, to make the caliber transition easier. Also possible new engine.












Abrams Prototype Block-III MBT (TTB).


TTB Supporting a man-less turret






Name: M8 Buford/Sheridan/Thunderbolt
 
 
M8 Airborne Gun System (AGS)


Specifications
Weight 19.25 tons - Level 1
22.25 tons - Level 2
24.75 tons - Level 3
Length 210 inches - Hull 331 inches - overall
Width 106 inches
Height 100 inches
Speed - Maximum 45 mph
Speed - Cross Country 30 mph
Engine 550 hp diesel
Fuel diesel or JP8
Fuel Capacity 150 gal
Cruising Range 300 miles @ 2 mpg
Fording Depth 40 in
Main Gun M35 105mm cannon [30 rounds]
Coaxial machinegun 7.62mm [4500 rounds]
Commander's machinegun 5.58 mm [210 rounds]




Fully tracked, air-droppable, air-transportable





Armed with a low-recoil 105mm rifled cannon




Includes two machine guns on board - 1x7.62mm and 1x.50 Cal
Mission tailorable armor packages






State-of-the-art fire control and battlefield management system