Propellant Tanks are used to store Reaction Mass for your thrusters (as well as cooling for your reactor).
* Standard propellant tank * Standard propellant tank for thermal rockets. Holds up to 30000kg of propellant. Approved for orbital missions. Honeycombed cells prevent mass shifts during manouvers. * Capacity: 30,000kg * Propellant type: Thermal Rocket
* Extended propellant tank * Extended propellant tank for thermal rockets. Holds up to 50000kg of propellant. Approved for interlunar missions. Honeycombed cells prevent mass shifts during manouvers. * Capacity: 50,000kg * Propellant type: Thermal Rocket
* Long-range propellant tank * Long-range propellant tank for thermal rockets. Holds up to 80000kg of propellant. Approved for interlunar and short-range interplanetary missions. Honeycombed cells prevent mass shifts during manouvers. * Capacity: 80,000kg * Propellant type: Thermal Rocket
* Interplanetary propellant tank * Propellant tank for thermal rockets on interplanetary missions. Holds up to 200,000kg of propellant. Approved for interplanetary travel. Honeycombed cells prevent mass shifts during manouvers. * Capacity: 200,000kg * Propellant type: Thermal Rocket