https://www.joebaugher.com/usaf_serials/1941_5.html41-39047 Culver YPQ-14-CL Model LCA modified as radio-controlled target. Larger development of PQ-8.
41-39048 Culver XPQ-10-CL Culver Aircraft Company Model MR modified as radio-controlled target. Ordered 1941. Contract cancelled before prototype completed
41-39049/39056 Fleetwings YPQ-12A-FL Fleetwings Model 36 manned aerial-target. Test and evaluation aircraft.
41-39057 Fleetwings XPQ-12-FL Fleetwings Model 36 manned aerial-target. Prototype. Not built Also listed as built as NX37010, first flight 12/5/1941
41-39058/39097 Fleetwings PQ-12A-FL Fleetwings Model 36 manned aerial-target. Production variant, none were built
41-39098 Fleetwings XPQ-12A-FL Fleetwings Model 36 manned aerial-target. Modified prototype
Down the Rabbit Hole - PQ Series
http://www.designation-systems.net/dusrm/app1/pq.html