The first third-generation Tatra Phoenix vehicle, configured as a fuel tanker for the Czech Army, is currently undergoing testing. Karbox and Tatra Defence Systems – both part of the CSG group – as well as KOBIT in Jičín are involved in its development and delivery.

Karbox, based in Přelouč, is the vehicle integrator and final supplier to the Czech Army. Tatra Defence Systems supplies the chassis, which was developed in collaboration with Tatra Trucks, while KOBIT designed and manufactured the tanker body and is responsible for its installation on the vehicle. Framework agreements have been signed for the production of dozens of vehicles, with Karbox set to deliver the first vehicles to the army in 2027. The first prototype, which made its debut in August at the Jičín trade fair, is currently undergoing a series of tests.

The vehicle is based on the latest third-generation Tatra Phoenix 8×8 chassis. It is the first military-spec Phoenix of this generation equipped with a Euro 3-compliant engine for the Czech Army. The six-cylinder, multi-fuel PACCAR MX-13 engine delivers 390 kW and is paired with a six-speed, fully automatic Allison 4500-series transmission with a retarder. The drivetrain also includes an auxiliary Tatra transmission. The rear axles have permanent drive, while the front-axle drive is selectable; the axles do not have final drives and are equipped with drum brakes. The vehicle’s maximum speed, with the speed limiter engaged, reaches 85 km/h.

KOBIT designed the CN 18PL-HD tanker body based on its experience with vehicles used to supply equipment with fuel and operating fluids in rough terrain. The body is designed to transport and dispense fuel for ground and airborne equipment; its single-chamber tank, made of H 5182 aluminum alloy, has a capacity of 18,000 liters and is equipped with a pump with a flow rate of 800 liters per minute. It can operate on F-54 diesel fuel, F-34 universal fuel, JET A-1 aviation fuel, and F-67 gasoline. When changing fuel types, the specified tank cleaning procedure must be followed; appropriate filter elements are used when refueling aircraft.

The dispensing unit is equipped with a printer and the ability to transfer data to a computer, and includes a temperature-compensated measuring system as well as a hydraulically retractable reel with a 20-meter hose. The tank can be filled from either the top or the bottom. After connecting a special bulk refueling kit to the hose’s pressure fitting, the unit can simultaneously refuel up to six vehicles or pieces of equipment via individually metered dispensing hoses.