Item text: "Air Corps Technical Schools Civilian Mechanics Branch Spartan School of Aeronautics Tulsa, Oklahoma Certificate of Technical Training Date February 24, 1941 This is to certify that: (Surname) Baird (Christian) Clifford (Middle) R. (Serial No.) 6377076 (Rank) St. Sgt. (Org. or arm) 13th Bomb Sq. (L) GHQ AF Graduated from the Airplane Mechanics Course on February 21, 1941 with rating of satisfactory Subjects covered and grades on same are shown on reverse side. By order of Orvil W. Haynes Capt. Air Corps Supervisor. (Furnished in compliance with paragraph 2 a (6) (c) AR 350-5) Subjects Covered | Hours | Final Grade - Shop Mathematics.....25, 57 - Mechanical Drafting & Blueprint Reading.....35, 78 - Air Corps Fundamentals....20, 72 - Elements of Metalwork.....40, 83 - Elements of Electricity....40, 85 - Airplane Structures....34, 76 - Airplane Hydraulic Systems and Miscellaneous Equipment.......84, 78 - Airplane Iropellers....78, 80 - Airplane Instruments.....82,72 - Airplane Engines......64, 74 - Airplane Electrical Systems......80, 76 - Enine Induction, Fuel and Oil Systems....80, 71 - Engine Operation and Test...........88, 76 Engine Change and Engine Change Inspection....80, 82 - Airplane Inspection and Maintenance.......80, 84............. Total Hours.........960 - Final Weighted Grade.........75.61 -------- REMARKS: Aptitud: ------ Satisfactory Application: --- very satisfactory Reliability: --- Very satisfactory Cooperation: --- Very satisfactory"