Spartan SofA
Xercules (and Danny)
My first reaction on seeing "Spartan SofA" was that it referred to The Spartan School of Aeronautics of Tulsa Oklahoma. They were used for U.S.A.A.C purposes from Aug. 1939 and took RAF students from June 1941. They still exist in Tulsa (now called Spartan College of Aeronautics & Technology). Spartan also ran 3 BFTS in Miami Oklahoma.
Ian BB