...interesting....but the aircraft got a bad reputation because of its loss rate at the hands of usually inexperienced pilots.....
.....”The Martin B-26 Marauder is an American twin-engined medium bomber that saw extensive service during World War II. The B-26 was built at two locations....... the aircraft quickly received the reputation of a “widowmaker” due to the early models’ high accident rate during takeoffs and landings.”
That was a common problem. For WWII, the US built circa 295K aircraft of all kinds, all but about 10K from 1941 to 1945. That’s a lot of pilots that had to be trained.