Medium tanks
AT-35 1A1 Cruiser tank
The AT-35 "Sabre" is a new design based on what amounts to an enlarged AT-31/32 chassis and hull using sloped, welded/cast armour, Christie patterned suspension and the new Aspis arsenal 57mm gun.
The design also enjoys an improvement over its predesessor's in the area's of firepower, protection speed and range.
Designs specifications
Type: Light/Medium tank
Place of origin: Atlantis
Service history: 1935-
In service: 1935
Used by: Atlantis, Colombia, Latvia and Romania
Production history
Designer:
Designed: 1934-35
Produced: 1937-
Weight: 20 tons
Length 5.76 meters
Width 2.65 meters
Height 2.65 meters
Crew: 4
Armor: 69-12mm, Hull - 62 mm Front, 27 mm sides, 29mm rear, 12 mm roof, 15 mm belly.
Turret - 69 mm front, 29 mm sides/rear, 12 mm top
Primary armament: one Aspis Arsenal 57mm MK I (110 rounds)
Secondary armament: two 7.62mm machine guns (2000 rounds each).
Engine: 1x Napier-hall 12 cylinder diesel developing 400 horsepower
Suspension: Christie type
Operational range: 170 miles
Fuel Capacity: 150 gallons
Speed: 35.54 MPH
Ground Pressure 10.07 PSI
Power/Weight Ratio 19.60 hp/metric ton
AT-33 (AT-27 MK II)Infantry tank
AT-33 1A1 above and 1A2 below
The AT-33 "Sentinel II" is an improvement over the AT-27 design, using experience gained from that design. The AT-33 1A1 has improved armour and is armed with the new Aspis arsenal 57mm gun as opposed to the standard Aspis arsenal 37mm tank gun. Speed is also considerably better than the AT-27. After an initial production run of 192 1A1's the hull was modified to mount the turret of the AT-35 in an effort to standardise tank components. This model is known as the AT-33 1A2.
As with the AT-27, the AT-33 hull will be utilised for a self propelled artillery and AA mount. In addition a turretless infantry support model using the new Aspis Arsenal 75mm Howitzer is under developement.
Length 5.5 meters
Width 2.75 meters
Height 2.5 meters
Crew 5 men
Passengers 0 men
Weight 19.04 tons.
Engine: 2x Napier-hall 6 cylinder diesels developing 250 horsepower total
Fuel Capacity: 120 gallons
Top Speed: 23.81 MPH
Operating Range: 141 miles
Armament: one Aspis Arsenal 57mm MK I (100 rounds) and two 7.62mm machine guns (1500 rounds each).
Armor: 48-10mm, Hull - 43 mm Front, 25 mm sides/rear, 12 mm roof/belly.
Turret - 48 mm front, 40 mm sides/rear, 12 mm top
Ground Pressure 16.4 PSI
Power/Weight Ratio 13.13 hp/metric ton
AT-27 MK IA1 infantry Tank
AT-27 1M1 Infantry Tank (Mexican 47mm version)
Designed as an infantry tank, the AT-27 1A1 was designed with the requirement that it be armed adequately to not only support infantry but to defeat enemy tanks if needed as well. This resulted in less than desireble armor for the design (quite normal for the period however).
The designs hull has also been used for a number of support roles, such as a self propelled artillery version, AA version and a heavily modified artillery tractor version. The AT-27 1A1 is also licence built in Mexico to slightly different specs, known as the AT-27 1M1, with a heavier 47mm gun. The Mexicans have also created their own self propelled design based on the AT-27 1A1.
Designs specifications
Length 7 meters
Width 2.75 meters
Height 2.8 meters
Crew 5 men
Passengers 0 men
Weight 16.23 tons.
Engine: Napier-hall 8 cylinder air-cooled inline developing 150 horsepower
Fuel Capacity: 105 gallons
Top Speed: 16.6 MPH
Operating Range: 136 miles
Armament: one Aspis Arsenal 37mm MK IV (100 rounds) and two 7.62mm machine guns (1500 rounds each).
Armor: 42-10mm, Hull - 21mm Front, 20 mm sides, 15 mm rear/12 mm roof/belly.
Turret - 43 mm front, 25 mm sides/rear, 10 mm top
Ground Pressure 14.99 PSI
Power/Weight Ratio 9.24 hp/metric ton