This is a list of aircraft in alphabetical order beginning with 'S'.
((William P) Sullivan Aircraft Mfg Co, 630 E Gilbert St, Wichita, KS)
((W P) Sullivan Aircraft Co, 1693 Mission St, San Francisco, CA)
(Summit Aeronautical Corp (pres: M V D Towt), Westfield, MA c.1940: Bendix, NJ)
(Yale, MI)
(Sun Aerospace Group, Nappanee, IN)
(Scheidegg, Bavaria, Germany)
(LanShe Aerospace aka Sun Lake Aircraft (pres: Wadi Rahim), Ft Pierce, FL)
(Pierceland, Saskatchewan, Canada)
((Eiler C) Sundorph Aeronautical Corp, Cleveland, OH)
(Hugo Sundstedt & Christoffer Hannevig)
(Hofbauer GmbH, Innsbruck, Austria)
(Sunward – Hunan Science and Technologies Co Ltd, Zhuzhou, Hunan, China)
(M.M. Super Rotor Brasileira Ltda)
(Super-Marine Systems Inc, Graybar Bldg, NY)
(Superior Aircraft Co, Dearborn, MI)
(Superior Aircraft Corp div of Priestly-Hunt Corp, Culver City, CA)
(Adolph G Sutro, San Francisco, CA)
(Shigeru Suzuki)
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