Deliveries of initial production E-2Ds began in 2010. On 4 February 2010, Delta One conducted the first E-2D carrier landing aboard USS "Harry S. Truman" as a part of carrier suitability testing. On 27 September 2011, an E-2D was successfully launched by the prototype Electromagnetic Aircraft Launch System (EMALS) at Naval Air Engineering Station Lakehurst. On 12 February 2013, the Office of the Secretary of Defense approved the E-2D to enter full-rate production. The Navy plans for an initial operational capability by 2015. In June 2013, the 10th E-2D was delivered to the Navy, with an additional 10 aircraft in various stages of manufacturing and predelivery flight testing. On 18 July 2013, Northrop Grumman was awarded a $113.7 million contract for five full-rate production Lot 2 E-2D Advanced Hawkeye aircraft. On 13 August 2013, Northrop Grumman was awarded a $617 million contract for five E-2Ds until full-rate production Lot 1. On 30 June 2014, Northrop Grumman was awarded a $3.6 billion contract to supply 25 more E-2D, for a total contracted number of 50 aircraft; 13 E-2D models had been delivered by that time.