Narrative - Official Air Force Mission Description
Mission 356: 166 bombers and 104 fighters hit V-weapon sites in France with 1 fighter lost; 38 of 58 B-17s bomb Marquise/Mimoyecques with 5 B-17s damaged; 90 of 108 B-24s bomb Siracourt with 8 B-24s damaged; escort is provided by 104 P-51s with 1 lost (pilot is MIA).
Mission 357: 3 of 3 B-17s drop 1.1 million leaflets on 10 towns in Belgium and France; 1 B-17 crash lands on returning to base, 1 airman is KIA, 3 WIA.
5 B-24s are dispatched on CARPETBAGGER operations.
HQ 479th Fighter Group and 434th and 436th Fighter Squadrons arrive at Wattisham, England from the US with P-38Js; first mission is 26 May.
Source: THE ARMY AIR FORCES IN WORLD WAR II: COMBAT CHRONOLOGY, 1941-1945 by Carter / Mueller, the Office of Air Force History,
303BG Mission Report - Target: V-Weapon Site at Mimoyocques, France. Crews Dispatched: 20. (358BS - 8, 359th - 7, 360th - 0, 427th - 7). Length of Mission: 4 hours, 10 minutes. Bomb Load: 6 x 1000 lb M-44 G.P. bombs. Bombing Altitude: 24,800 ft. Ammo Fired: 230 rounds.
Twenty-two 303rd BG(H) B-17s took off to bomb a "No-ball" V-weapon site at Mimoyocques, France. The two spares returned as ordered. No other aircraft returned early.
Nineteen aircraft dropped 114 1,000-lb. G.P. M44 bombs from 24,8000 feet. Bombing was by the “Gee-H” technique and results were unobserved. "Gee" was the code name for devices installed in select aircraft. This equipment allowed precise position fixing through signals beamed from two Gee-H responder stations in England. Gee-H transmitters and scopes were installed in the three 41 CBW B-17 Groups in May. Navigators using this equipment coordinated their fixes with their bombardier and could, theoretically, have their locations pinpointed by the ground stations within a few feet. While never as accurate as visual bombing, the Gee-H was superior to PFF against small targets. Gee-H range was 170 miles at 20,000 feet and 200 miles at 25,000 feet. V-weapon sites were almost the sole targets up to the time of the June invasion of France.
Meager and inaccurate flak was encountered just before "bombs away." Chaff may have had some effect. No enemy aircraft were seen. Three B-17s suffered flak damage and one was damaged from friendly fire, evidently from crews test firing their guns. All aircraft returned to Molesworth. There were no casualties.
source: 392nd Bomb Group web page http://www.b24.net/missions/
44BG Mission Report - 17 planes were dispatched from the Group (5 were 67th none by the 66th's PFFs), 16 of them bombed the Primary, St. Pol/Siracourt. The target was the Constructional Work at Siracourt situated in open field immediately west of and adjacent to Siracourt village. Bombing results were unobserved, and fighter support was excellent, no flak. Take-off was at 0600, bomb load 8 x 1000 lb, at altitude of 23,000 feet, and return was at 1115 hours. A milk run for sure. Lt. Knowles flew his first mission as co-pilot on Lt. Mercer's plane. It was Lt. Landahl's 11 mission.
source: 44th Bomb Group web page http://www.8thairforce.com/44thbg