1951
Jan. 1: As almost half a million CCF and North Korean troops launched a new ground offensive, 5th Air Force embarked on a campaign of air raids on enemy troop columns.
Jan. 2: For the first time, a C-47 dropped flares to illuminate B-26 and F-82 night attacks on enemy forces. The flares also deterred enemy night attacks on US troops. Fifth Air Force withdrew forward-based F-86s assigned to the 4th FIW from enemy-threatened Kimpo airfield near Seoul to the wing's home station at Johnson AB, Japan.
Jan. 3: As massive numbers of Chinese troops crossed the frozen Han River east and west of Seoul, Eighth Army began evacuating the South Korean capital. The South Korean government began moving to Pusan. In one of the largest Bomber Command air raids, more than 60 B-29s dropped 650 tons of incendiary bombs on Pyongyang. UN forces burned nearly 500,000 gallons of fuel and 23,000 gallons of napalm at Kimpo in preparation for abandoning the base to the advancing enemy. FEAF flew 958 combat sorties, a one-day record.
Jan. 4: For the third time in six months, Seoul changed hands as CCF troops moved in. The last USAF aircraft left Kimpo airfield.
Jan. 5: Fifty-nine B-29s dropped 672 tons of incendiary bombs on Pyongyang. The 18th FBG staged its final missions from Suwon. US ground troops burned the buildings at Suwon's airfield before withdrawing.
Jan. 6: Combat Cargo Command concluded a multiday airlift of supplies to the US 2nd Infantry Division, which was fighting to prevent a break in the UN defensive line across South Korea. C-47s from 21st TCS landed 115 tons of cargo at Wonju, in central Korea, and C-119s of the 314th TCG dropped 460 tons of supplies to the division.
Jan. 8: When blizzards forced USN Task Force 77 carriers to suspend close air support missions for X Corps, 5th Air Force took up the slack. Superfortresses cratered Kimpo airfield to prevent its use by enemy aircraft. US forces in central Korea withdrew to new positions three miles south of Wonju.
Jan. 10: Continued severe winter weather forced 5th Air Force to cancel close air support missions, and FEAF flew the lowest daily total of sorties since July 1950. Brig. Gen. James E. Briggs, replaced O'Donnell as commander of Bomber Command. From now on, Strategic Air Command changed commanders of Bomber Command every four months to provide wartime experience to as many officers as possible.
Jan. 11: With improved weather, 5th Air Force and Bomber Command resumed close air support missions for X Corps in north central South Korea.
Jan. 12: After Wonju fell to Communist forces, 98th BG sent 10 B-29s to attack the occupied city. For the first time, B-29s dropped 500-pound general purpose bombs fused to burst in the air and shower enemy troops with thousands of steel fragments. The innovation slowed the enemy advance. To improve bombing precision, FEAF installed shoran (a short-range navigation system) on a B-26 for the first time.
Jan. 13: FEAF flew the first effective tarzon mission against an enemy-held bridge at Kanggye, dropping a 6-ton radio-guided bomb on the center span, destroying 58 feet of the structure.
Jan. 14: Chinese Communist Forces reached their furthest extent of advance into South Korea with the capture of Wonju.
Jan. 15: The enemy began a limited withdrawal in some areas of South Korea.
Jan. 17: A 4th FIG detachment began operating from Taegu, restoring F-86 operations in Korea. For the first time, the Sabres flew in the air-to-ground role as fighter-bombers, conducting armed reconnaissance and close air support missions. FEAF temporarily suspended tarzon bombing missions because of a shortage of the radio-guided bombs. Only three, earmarked for emergencies, remained in the theater.
Jan. 17-18: Combat Cargo Command flew an extraordinary 109 C-119 sorties to drop more than 550 tons of supplies to front-line troops in Korea.
Jan. 19: FEAF launched a 13-day intensive air campaign, by fighters, light bombers, and medium bombers, to restrict to a trickle the supplies and reinforcements reaching enemy forces in the field.
Jan. 20: After weeks of almost unbroken absence, MiGs appeared again over Korea, resulting on this date in the first encounter between USAF F-84s and CCF MiG-15s.
Jan. 21: Large numbers of MiG-15s attacked USAF jets, shooting down one F-80 and one F-84. Lt. Col. William E. Bertram of the 27th FEW shot down a MiG-15 to score the first USAF aerial victory by an F-84 Thunderjet.
Jan. 23: No other day in January saw as much air action. Thirty-three F-84s staging from Taegu attacked Sinuiju, provoking a furious half-hour air battle with MiG-15s from across the Yalu. The Thunderjets shot down three MiGs, the highest daily USAF aerial victory credit total for the month. While 46 F-80s suppressed Pyongyang's anti-aircraft artillery, 21 B-29s cratered the enemy capital's airfields.
Jan. 25: FEAF replaced its Combat Cargo Command (Provisional) with the 315th Air Division (Combat Cargo), which reported directly to FEAF and did not depend on 5th Air Force for administrative and logistical support.
Jan. 25-Feb. 9: Eighth Army executed Operation Thunderbolt, the first UN offensive of the year. The objectives were to clear the area south of the Han River and recapture the port of Inchon and the airfield at Suwon. To sustain this offensive, 68 C-119s in five days dropped at Chunju 1,162 tons of supplies, including fuel, oil, sleeping bags, C rations, and signal wire.
Jan. 26: FEAF flew its first C-47 "control aircraft," loaded with enough communications equipment to connect by radio all T-6 Mosquitoes, TACP, and the Tactical Air Control Center. This was the harbinger of today's warning and control aircraft.
Jan. 30: The first USAF aircraft to land at the recaptured Suwon airfield were C-54s of the 61st TCG, delivering 270 tons of supplies for the advancing UN forces.
Jan. 31: In the first such mission recorded during the Korean War, a special operations unit of the 21st TCS dropped a UN agent behind enemy lines near Yonan, on the west coast just south of the 38th parallel.
Feb. 4: Fifth Air Force modified some B-26s to drop flares because the flare-dropping C-47s that had accompanied B-26 night raiders had trouble keeping up with the fast bombers.
Feb. 5: As part of Operation Roundup, designed to disrupt enemy preparations for a new offensive, X Corps advanced with strong air support near Hoengsong, northeast of Wonju. Maj. Arnold Mullins, 67th FBS, in an F-51 Mustang, shot down a Yak-9 seven miles north of Pyongyang to score the only USAF aerial victory of the month. Capt. Donald Nichols was transferred from Office of Special Investigations to the intelligence section of 5th Air Force to work directly on special and clandestine operations.
Feb. 6: B-26 crews proved that the new MPQ-2 radar equipment, which provided the aircrew better definition of targets, increased the accuracy of night bombing raids. To clear up a backlog of medical patients at Chungju, 315th Air Division C-47s airlifted 343 patients to Pusan. Eight C-54s airlifted a 40-ton, 310-foot treadway bridge, in 279 pieces, from Tachikawa AB, Japan, to Taegu. In a onetime effort to demoralize CCF troops, six C-119s dropped 32 booby-trapped boxes, designed to blow up when opened, on an enemy troop concentration at Kwangdong-ni. The 91st SRS performed its first night photographic mission.
Feb. 8: FEAF, using B-29s, B-26s, and fighters, launched an all-out attack on rail lines in northeastern Korea between Hoeryong and Wonsan. Brig. Gen. John P. Henebry replaced Tunner as commander of the 315th Air Division and airlift operations in the Korean War.
Feb. 9: US troops reached the Han River seven miles east-southeast of Seoul.
Feb. 10: UN forces captured the port of Inchon and the important nearby airfield at Kimpo. Air raids had cratered the field so badly that it required extensive renovation before USAF aircraft could use it. On the east coast, South Korean troops crossed the 38th parallel and entered Yangyang.
Feb. 11/12: In central Korea some 50 miles east of Seoul, Chinese and North Korean forces attacked the South Korean 3rd and 8th Divisions north and northwest of Hoengsong and in two days captured the town, forcing the UN forces toward Wonju, a few miles to the south.
Feb. 12: FEAF cargo aircraft air-dropped supplies to the X Corps command post airstrip at Wonju. A leaflet-dropping C-47 aircraft, hit by enemy anti-aircraft fire, crash-landed at Suwon. FEAF decided to launch subsequent C-47 leaflet drops at night. While B-26s attacked enemy positions at night behind the battle line by the light of air-dropped flares, two enemy aircraft used the same flare light to attack UN positions.
Feb. 13: The 315th Air Division airlifted more than 800 sick and wounded US troops from forward airstrips, such as that at Wonju, to Taegu and Pusan. This airlift used so many C-47s that they were not available for other airlift demands.
Feb. 13-16: Three CCF divisions surrounded UN troops, including members of the US 23rd Infantry Regiment and a French battalion, at a crucial road junction at Chipyong-ni in central Korea. Despite heavy enemy ground fire, 93 transports dropped some 420 tons of food and ammunition to the encircled troops. Twenty C-119s dropped supplies at night over a zone marked by burning gasoline-soaked rags. Also, H-5 helicopters delivered medical supplies to the troops and evacuated more than 40 wounded. The 5th Air Force flew close air support missions for the surrounded troops, who held out until relieved by a friendly armored column.
Feb. 16: For the first time, the US Army began using its own aircraft, the L-19 Bird Dog, for forward air control, artillery spotting, and other front-line duties, relieving 5th Air Force of demands for these types of missions.
Feb. 17/18: B-26s flew the first night bombing mission using shoran, a short-range navigation system employing an airborne radar device and two ground beacon stations for precision bombing.
Feb. 20: FEAF activated a "Special Air Mission" detachment under 315th Air Division to provide air transportation for important officials and for psychological warfare missions, for example, aerial broadcasting and leaflet drops.
Feb. 21: Eighth Army launched Operation Killer to destroy large numbers of enemy troops while moving the UN line northward to the Han River.
Feb. 23: Bomber Command flew the first B-29 mission with the more accurate MPQ-2 radar, bombing a highway bridge seven miles northeast of Seoul.
Feb. 24: The 315th Air Division dropped a record 333 tons of cargo to front-line troops, using 67 C-119s and two C-46s.
Feb. 28: UN ground forces eliminated the last Communist presence south of the Han River.
March 1: Bomber Command B-29s launched the first mission of a new interdiction campaign. Twenty-two F-80s sent to escort 18 B-29s over Kogunyong, North Korea, arrived ahead of the Superfortresses and returned to base because they were running low on fuel. MiGs attacked the unescorted B-29s, damaging 10, three of which had to land in South Korea. One B-29 gunner brought down a MiG.
March 3: A new shipment of tarzon bombs arrived in the Far East, allowing FEAF to resume raids, suspended since Jan. 17, with the large guided weapons.
March 4: Fifty-one C-119s dropped 260 tons of supplies to the 1st Marine Division in the largest airdrop of the month.
March 6: The 334th FIS used Suwon as a staging base from which F-86 Sabres began raiding the Yalu River area after being absent for months.
March 7: UN forces launched a new offensive called Operation Ripper to cross the Han River in central Korea east of Seoul, destroy large numbers of enemy troops, and break up preparations for an enemy offensive. Fifth Air Force flew more close air support missions to support the operation.
March 14: Communist forces abandoned Seoul without a fight after Ridgway's troops seized high ground on either side of the city north of the Han River. At night B-26s began dropping specially designed tetrahedral tacks on highways to puncture the tires of enemy vehicles. They were more effective than the roofing nails dropped earlier.
March 15: UN forces entered Seoul, the fourth time the city had changed hands since the war began.
March 16: FEAF flew 1,123 effective sorties, a new daily record.
March 17: An F-80, flown by Lt. Howard J. Landry of the 36th FBS, collided with a MiG-15. Both went down with their pilots. Fifth Air Force lost no other aircraft in aerial encounters during the month.
March 20: Fifteen F-94B all-weather jet fighters arrived in the Far East for eventual service as night escorts for B-29s.
March 23: Operation Tomahawk, the second airborne operation of the war and the largest in one day, involved 120 C-119s and C-46s, escorted by 16 F-51s. The 314th TCG and the 437th TCW air transports flew from Taegu to Munsan-ni, an area behind enemy lines some 20 miles northwest of Seoul, and dropped the 187th Airborne Regimental Combat Team and two Ranger companies-more than 3,400 men and 220 tons of equipment and supplies. Fifth Air Force fighters and light bombers had largely eliminated enemy opposition. UN forces advanced quickly to the Imjin River, capturing 127 Communist prisoners. Some of the prisoners waved safe-conduct leaflets that FEAF aircraft had dropped during the airborne operation. Helicopters evacuated only 68 injured personnel from the drop zone. One C-119, possibly hit by enemy bullets, caught fire and crashed on the way back. On the same day, 22 B-29s of the 19th and 307th BGs, protected from MiGs by 45 F-86s, destroyed two bridges in northwestern Korea.
March 24: For the first time, FEAF used an H-19, a service test helicopter, in Korea for the air evacuation of wounded troops. The H-19 was considerably larger and more powerful, with greater range, than the H-5s.
March 24, 26-27: Fifty-two C-119s and C-46s dropped an additional 264 tons of supplies to troops at Munsan-ni, because they could not depend on surface lines of communication for supplies.
March 29: With fighter escorts, B-29s returned to the Yalu River to bomb bridges, which had become important targets again as the river ice thawed. Fifth Air Force light bombers and fighters, which had handled interdiction in the area during the winter, could not destroy the larger Yalu River bridges.
March 31: Flight Lt. J.A.O. Levesque, Royal Canadian Air Force, flying with the 334th FIS, scored the first aerial victory since 1950 of an F-86 over a MiG-15. Elements of Eighth Army moved northward across the 38th parallel. The 3rd ARS used the H-19 to retrieve some 18 UN personnel from behind enemy lines, the first use of this type helicopter in a special operations mission. The 315th Air Division grounded its C-119s for modification and reconditioning.