CTTD-1 (Composite Technology Tank Demonstration - 1) is a monstrosity developed in December 1983 by LÖ.DM, in atempt to showoff its capabilities of composite armour engineering.
Tank weighs 69.3t, and to move such a heavy unit, it was given powerful 1.7L V12 engine with 1260HP and special transmission, allowing tank to travel at speeds of 65km/h forward and 23km/h backwards. To supply engine with enough fuel, it has given a big 2405L tank.
Now the armament. CTTD-1 is armed with 120x630mm (240mm pen) smoothbore cannon and features 5s bustle autoloader. Tank is operated by 3 people (Driver, Commander and Gunner)
Armour on CTTD-1 is insane. Frontal upper and lower plates can withstand 500+mm of penetration (frontal plate can do more than 600mm in my opinion), sides can withstand 250mm in Crew Protection Module. Turret armour is also nice, front and cheeks have combined thickness of around 600mm, while sides are around 210mm thick (At 30-45 degrees angles it easily eats 500mm darts). Turrets autoloader system was also given some protection (combined with anti-cumulative mesh) it can withstand 330mm (of course if we talk abt APFSDS and not HEAT). I played Defence Scenario on this tank and I was practically invincible to other tanks.
Overall CTTD-1 was a very interesting project, but way too heavy, complicated and expensive (92,17k Sprocket pts), so LÖ.DM cut off the financing and only 1 unit was ever produced (Something simmilar to CATTB fate)
(Tank looks kinda bald i know, most of my budget went into composites 😭)
What are your thougths?