The OST 26/X from Orbital Propulsion Centre is a Bipropellant Tank that has a propellant capacity ranging from 1309 to 1450 L. It is compatible with MON, and MMH propellants. The pressurant gas used in this tank is helium or nitrogen and has an operating pressure of 19.5 bar. It has a proof pressure of 24.375 bar and a burst pressure of 29.25 bar. This tank consists of Cassini domes with variable-length cylindrical intersections to match propellant capacity. It measures 1141 x 1683 mm and is ideal for satellite and spacecraft propulsion system applications.