Approximately half of the Marine air missions were in support of non-Marine ground units. The ROK and the U. S. Army units were not as well supplied with experienced FACs as the 1st Marine Division. In these areas four Air Force “Mosquitos” (AT-6 “Texan” training planes) were assigned to X Corps to assist in the control of air support.[647] [647] 1stMAW _HDs, Oct-Dec 50_. When shore-based Marine air support was about to cease with the closing of Yonpo air field, VMF-214 and VMF-212 quickly moved their operations aboard carrier; and during the final phases of the Hungnam evacuation, almost half of the Marine tactical air strength was operating from carrier bases. VMF-214 flew back aboard _Sicily_ on 7 December without missing a mission and VMF-212, which had moved to Itami on 4 December to draw and test a new complement of carrier Corsairs, was aboard the USS _Bataan_ eight days later. When the month ended, still another squadron, VMF-312, was polishing up its carrier landing technique for seaborne duty.[648] [648] VMF-312 _HD, Dec 50_, 2. The outcome of the Hagaru withdrawal owed much to air-dropped supplies and to casualty evacuations by General Tunner’s Combat Cargo Command (CCC). Assisting Combat Cargo in Marine support were the Wing’s R4D twin engine transports and TBM World War II type torpedo bombers, both of which were flown largely by the field-desk pilots on the Wing and Group staffs. Most of the Marines’ share of the heavy airlifting, however, was done by the four engine R5D transports of Colonel Dean C. Roberts’ VMR-152. Early in October this squadron had been temporarily shifted from the trans-Pacific airlift of the Navy’s Fleet Logistics Air Wing to support the Marines in the Wonsan campaign. In Korea its operations were controlled by the Combat Cargo Command, which committed an average of five Marine R5D’s a day into the CCC airlift. In such missions these transports supported all UN units from Pyongyang to Yonpo and points north. Marine transports not committed by the CCC for general UN support in Korea were available for Wing use. From 1 November until Christmas, VMR-152 safely carried five million pounds of supplies to the front and evacuated more than 4000 casualties.[649] [649] ComNavFE msg to CinCPacFlt, 0858 1 Oct 50; CinCPacFlt msg to ComNavFE, 2245 2 Oct 50; CG 1stMAW msg to CO VMR-152, 0620 12 Oct 50; VMF-152 _SAR_, 6; Col R. R. Yeaman Comments, 19 Sep 56 and 6 Nov 56. By 25 December when VMR-152 returned to Navy control it had flown 729,790 miles in Korean lifts and carried 8,068,800 pounds of cargo, 234,000 pounds of mail and 11,314 passengers, including 4276 casualties.