The Airbus A400M increases the airlift capacity and range compared with the aircraft it was originally set to replace, the older versions of the Hercules and Transall. Cargo capacity is expected to double over existing aircraft, both in payload and volume, and range is increased substantially as well. The cargo box is long excluding ramp, wide, and high (or aft of the wing). The maximum payload of can be carried over . The A400M operates in many configurations including cargo transport, troop transport, and medical evacuation. It is intended for use on short, soft landing strips and for long-range, cargo transport flights. The A400M is large enough to carry six land rovers and trailers, or two light armored vehicles, or a dump truck and excavator, or a Patriot missile system, or a Puma or Cougar helicopter, or a truck and 25-ton trailer.