The Type 702 Berlin-class replenishment ship is a series of replenishment ships, originally designed and built for service in the German Navy (Deutsche Marine). Designed to support United Nations overseas missions, the Berlin class were initially to number four vessels. However, three hulls were cut from the initial order. The lead ship, , began construction in 1999 and entered service in 2001. The second hull, , was re-ordered in 1998, began construction in 2000 and entered service in 2002. The third hull, , was ordered in 2008 to a modified design, began construction in 2010 and entered service in 2013. All three ships are in service and are based at Wilhelmshaven. The Berlin-class design was selected as the basis for the Royal Canadian Navy's (RCN) replacement for the two former auxiliary oiler replenishment (AOR) vessels which were retired in 2014. Two Berlin-class variants, described as Joint Support Ships, were ordered by the RCN to be built in Canada. As of 2022, the first vessel is under construction. General characteristics The Berlin-class replenishment ships are the largest vessels of the German Navy. The Berlin-class replenishment ships are long overall and between perpendiculars with a beam of and a draught of . The vessels have a displacement of light and at full load and measure . Constructed with a double hull, they have a pronounced bow bulb. The ships have capacity for or of marine diesel fuel, or of aviation fuel, or of lube oil, of spare parts, of provisions and of ammunition, or of fresh water, consumables, of supplies and 230 t of provisions. The vessels have two replenishment at sea stations, one to each per side of the ship and two electro-hydraulic container and cargo cranes. The Berlin class have capacity for 86 TEUs of shipping containers and can stack 26 TEUs in two layers on the upper deck. The ships have provision for a Marineeinsatzrettungzentrum (MERZ) unit which is a modular operations rescue centre aboard the ship. The MERZ is capable of holding 50 patients and providing them with emergency surgery, intensive care, internal medicine and dental services. The first two vessels of the class, and are powered by two MAN Diesel 12V 32/40 diesel-engines, creating with two reduction gears turning two controllable pitch five-bladed propellers and powering one bow thruster. creates . They have four Deutz-MWM diesel generators. The three ships have a maximum speed of and have