The Culver PQ-14 “Cadet” was an outgrowth of Culvers pre-WWII efforts in to inexpensive general aviation aircraft production. The PQ-14’s predecessor, the PQ-8, was produced specifically as a radio-controlled drone for the Army Air Corps beginning in …
Source: bingTinker Celebrates 75 Years: Culver PQ-14 Cadet aircraft profile