CATALOG 1952-1953 AN. 487.-Aircraft Structures. 3 hours. 3 credits. Prerequisites: EM. 365, EM. 366, EM. 367. The first half of the course AN. 487-488. Offered 1. Methods of aircraft structural analysis and applied stress analysis. Instability, flat sheets, cylindrical structures, wings and control surfaces, fuselages, landing gears, en- gine mounts, etc. Peery, Aircraft Structures; ANC-5a, CAR-03, 04a,-04b, CAM-03,-04. AN. 488.-Aircraft Structures. 3 hours. 3 credits. Prerequisite: AN. 487. The second half of the course AN. 487-488. Offered 2. AN. 490.-Aircraft Propulsion. 2 hours. 2 credits. Prerequisites: AN. 381-382. Offered 1. Propeller and jet theory as thrust producing devices. A study of fixed, controllable and constant speed propellers. Selection of propellers. Use of jet-assist devices. Over- all characteristics of rockets, athodyd, reso-jet, gas turbine jet, prop-jet, and exhaust jets. J. V. Casammassa, Jet Power Plant Systems. AN. 491.-Aeronautical Seminar. 1 hour. 1 credit. The first half of the course AN. 491-492. Offered 1. A seminar period devoted to special topics of Aeronautical Engineering, and pro- fessional conduct. AN. 492.-Aeronautical Seminar. 1 hour. 1 credit. The second half of the course AN. 491-492. Offered 2. AN. 493.-Aeronautical Laboratory. 8 hours laboratory. 2 credits. Co- requisite: AN. 488. Offered 2. Experimental methods of testing aircraft and their components. Landing gear drop tests, wing rib tests, spar loading tests, elastic axis tests, static wing tests, combined loading propellor vibration tests. Tests on stiffened thin sheets, circular rings. Civil Air Regulations, Civil Aeronautics Manuals. GRADUATE COURSES AN. 581.-Advanced Aeronautical Design. 3 credits. The first half of the course AN. 581-582. Prerequisites: AN. 485-486, AN. 381-383, AN. 487-488. Advanced aeronautical design projects. AN. 582.-Advanced Aeronautical Design. 3 credits. The second half of the course AN. 581-582. Prerequisite: AN. 581. AN. 583.-Aeronautical Research. 3 credits. The first half of the course AN. 583-584. Prerequisites: AN. 485-486, AN. 487-488, AN. 382-383. Advanced aeronautical research projects. AN. 584.-Aeronautical Research. 3 credits. The second half of the course AN. 583-584. Prerequisite: AN. 583. AN. 585.-Advanced Aerodynamics. 3 credits. Prerequisites: AN. 381- 382, AN. 383-384. Offered 1, 2, 3. Advanced study of aerodynamics. AN. 586.-Supersonic Aerodynamics. 3 credits. Prerequisites: AN. 381- 382, AN. 383-384. Offered 1, 2, 3. Supersonic aerodynamic theory. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.