The stripes were added to tactical and liaison aircraft for the Normandy invasion in northwest Europe in the nights before the invasion. Because of the secretcy, these were applied hastely.
By August , most of the topside were removed or painted over and new planes received only tge lower portions. A more appreviated and even reversed ( two black stripes) continued until about the end of 1944.
The AAF went to uncamoflauged planes in January 1944, those arriving in the ETO by March 1944. So by June, the 8 & 9 Air Forces had mixed fleets.
Some RAF heavies were used as glider tugs and were marked for the invasion, most strategic bombers werenot marked for the invasion, however.
The last thing to remember is that aircraft had to have been active in the area in latter 1944, a B-25G or a P-38 F or a Spit I would not be appropriate subjects for example.