The Lioré et Olivier LeO 40 was a French experimental biplane built by Lioré et Olivier.
[1] The two-seat LeO 40 had full span slats fitted to both wings, it was powered by a 95 hp (71 kW) Argus engine in Pusher configuration.
[1] Only one was built and the design was abandoned.
[1] General characteristics
This aircraft of the 1930s article is a stub.