[KM1957]

It was not always a uniform, set pattern for units. Many squadrons (Eighth and Ninth Air Force) had four flights besides the Squadron CO and Operations Officer (Execs were non-pilots), flight leaders were more often than not Lieutenants not Captains. Some squadron commanders were Captains until being promoted if around long enough, same for operations officers. In some Ninth Air Force squadrons, 1st Lieutenants were operations officers until being promoted later. Also, and primarily from what I have seen it was in Ninth Air Force units, some pilots did have duty as an engineering officer. In a totally unrelated way, at war's end with large numbers of personnel being transferred out, many pilots were assigned "additional" duties which were non-flying related.

Kent