variants, including APC variant Astros - chassis for multiple rocket launcher produced in Brazil Nexter Caesar - French self-propelled howitzer mobile surgical unit by German company Drehtainer ATLAV APC Rosenbauer Tigon Specifications Tatra vehicle coding The full name of a given vehicle explains most essential information about it. Take as example T 815 - 231S25 28 325 6 x 6 . 2 R / 34 1: T815 = truck family 231S25 2 = truck family - T 815-2 Cab over engine TerrNo1 or Armax 3 = engine type - T3D-928.30 air-cooled 1 = vehicle variant - Euro 5 left hand drive with ABS S = vehicle type - tipper (Sklápěč) 2 = cab type and axle configuration - short cab, 6x6 or 4x4 5 = Rear axles and suspension - Combined suspension, load capacity 11 tons, no reductions, axle ratio 3,385 28 = gross vehicle weight (tones) 325 = engine power (kW) 6x6 = wheel drive 2 = tire fitting - dual R = hub reduction 34 = wheelbase (mm) - number x 100 1 = variant - serial vehicle References External links Official site Comparison of standard ladder chassis and backbone chassis with half axles on offroad testing track with emphasis on the twist of superstructure (video): Ladder chassis (Renault fire engine) Backbone chassis (Tatra T815 fire engine) T815 Cars of the Czech Republic All-wheel-drive vehicles Cab over vehicles Trucks of the Czech Republic Vehicles introduced in 1983