Claim: The Latecoere 6 (which took flight in the summer of 1924) was a sesquiplane, or fixed-wing aircraft with two main wings stacked one above the other.
Evidence: The Latécoère 6 was a sesquiplane, its lower wing having a span only 75% that of the upper plane and about 50% of its chord. A biplane is a fixed-wing aircraft with two main wings stacked one above the other. Summer 1924