T-6M41 'Nahuel’ (Tiger)
Weight: 35,000kg (77,161lbs)
Dimensions: length 6.22m; width 2.33m and height 2.95m
Engine: one 500hp FMA-Lorraine Dietrich 12EB 12-cyl petrol
Top Road Speed: 24mph
Range 155 miles
Armour: 80-10mm armour
Armament: one 75mm M40 L/30 gun and one 13mm Browning HMG co-axial and one bow and one turret roof-mounted 7.92mm LMG
Crew: 5 (commander, gunnner, loader, driver and bow gunner/ radio operator
Designed by the Arsenal Esteban de Luca during 1940 as a new heavy tank with armour to defeat current and future RSAA anti-tank guns and to also serve in the support role with lighter fast tanks. The armour is 80mm thick and sloped on the glacis plate. The engine is a modified aero engine built under licence by FMA with several changes to increase reliability and to improve cooling. The M40 L/30 gun is the M33 L/24 with a longer barrel and a new AP shell. HE can also be fired. Vertical volute suspension is used and in general design the tank resembles the American M4. An initial batch of 24 was ordered in late 1940 and prototype trials began in May 1941.