The Aeronca L-3S is a liaison aircraft  used by the United States Army Air Corps during World War II. The L-3 series aircraft were adapted from Aeronca's pre-war Tandem Trainer and Chief models.

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The Missouri Wing's Aerona L-3S was manufactured as a civilian model 65TAC Defender in October 1941.  The aircraft spent the war time years at Meacham Field in Fort Worth, TX likely serving as a primary trainer.