The extended-range version of the DC-10-30. The -30ER aircraft has a higher maximum takeoff weight of 590,000 lb (267,600 kg); is powered by three GE CF6-50C2B engines each producing of thrust; and is equipped with an additional fuel tank in the rear cargo hold. It has an additional 700 mi of range to 6,600 mi (5,730 nmi, 10,620 km). The first of this variant was delivered to Finnair in 1981. A total of six were built and five −30s were later converted to −30ERs.