underwater defense capability. On 12 September 2007, an arms notification was sent to the United States Congress concerning an order for 12 P-3C Orion patrol aircraft and 3 "spare aircraft", along with an order for 144 SM-2 Block IIIA surface-to-air missiles. A contract was awarded to Lockheed Martin to refurbish the 12 P-3C Orion aircraft for the ROC on 13 March 2009, with deliveries to start in 2012. In 2008, the ROCN set out to acquire an improved anti-ship capability. On 26 August, an arms notification was sent to Congress for an order for 60 air-launched Harpoon Block II missiles for the 12 P-3Cs. At least a portion of these missiles will be installed on the navy's s. On 29 January 2010, the U.S. government announced five notifications to the U.S. Congress for arms sales to the ROC. In the contracts total US$6.392 billion, ROC Navy would get 2 s for US$105 million, 25 Link 16 terminals on ships for US$340 million, 10 ship- and 2 air-launched Harpoon L/II for US$37 million. The ROC Navy already has 95 older Harpoon missiles in its inventory for the 8 s, 22 newer RGM-84L for the 4 Kidd-class destroyers, 32 sub-launched Harpoon II on order for the 2 Hai Lung-class submarines, and with 60 air-launched Harpoon Block II anti-ship missile on order for the 12 P-3Cs, plus the newly announced 10 ship-launched and 2 air-launched Harpoon II/L sales. On 31 August 2010, it was announced for the next year's defense budget, ROCN planned to lease one or two more s (LST) from the United States, but the 900-ton stealth corvette plan was put on hold, due to lack of funds. That same year, On 29 September, the U.S. Congress passed a resolution, authorizing the U.S. Government for the sale of one more Osprey-class minehunter to the ROC. Other ongoing local upgrade programs include locally designed and built Ching Chiang class of 12 patrol ships that were designed back in the 1990s to carry four HF-1 anti-ship missiles on board but only the lead ship of the class had them. Since 2006, seven ships of this class were upgraded to carry four HF-2/3 with W-160 fire control radar from Wu Chin III program (as well as Honeywell H-930 MCS CDS stripped from seven retired Yang-class Wu Chin 3 anti-air warfare destroyers). In 2010 more ships of this class were undergoing this same upgrade program