estimated $125 million, was also authorised by the U.S. Defense Department, including 60 AGM-84L Block II missiles and 50 upgrade kits to bring the ROCAF's existing Harpoons up to Block II, Mark L standard. On October 3, 2008, arms notifications were sent to Congress concerning, amongst other things, the sale of 330 PAC-3 missiles, four missile batteries, radar sets, ground stations and other equipment valued up to US$3.1 billion, the upgrade of 4 E-2T aircraft to the Hawkeye 2000 standard and US$334 million worth of spare parts for the ROCAF's F-16s, IDFs, F-5E/Fs and C-130s. Late in January 2010, ROCAF received the first batch of new Sky Sword II BVR missiles ordered from CSIST, believed to have new radar seeker and improved performance from the original version which entered service over 10 years previously. The U.S. government also announced five notifications to Congress for additional arms sales totaling some US$6.39 Billion, under which the ROCAF will receive 3 PAC-3 batteries with 26 launchers and 114 PAC-3 missiles. On February 3, 2010, ROCAF also announced at a Singapore Airshow that it had signed a new contract for 3 EC-225 SAR (Search-And-Rescue) helicopters that was awarded to Eurocopter back in December 2009 for US$111 million, along with options for 17 more EC-225s. On November 26, 2011, the 3 EC-225 C-SAR helicopters were loaded on board an An-124 cargo aircraft and delivered to Chai-yi AB in Taiwan, and should enter service on July 1, 2012. On August 31, 2010, it was announced for next year's defense budget, ROCAF's "Medium Transport aircraft" plan to replace 12 B-1900 VIP/transport training aircraft, believed to be 6-8+ Lockheed C-27J, has been put on hold and might be axed, due to lack of budget, but will allocate 20+ million US dollars over next 4 years for quick runway repair. Other items mentioned including increases in runways from 3 to 6 at Eastern Taiwan's 3 airbases, moving 2 I-HAWK batteries to Eastern Taiwan to protect those airbases, which will double to 4 batteries, and others. On November 8, 2011, a second pair of E-2T Hawkeye AEW (s/n 2501 and 2502) were loaded on a ship and sent to the US for upgrade to the E-2C 2000 standard. The first pair of E-2T (s/n 2503 and 2504) were sent to the US in June 2010 and returned to Taiwan on December 18, 2011, and will be return to service by