2. This was generally called the Raymond de Montgolfier No 1, a huge twin-float seaplane, the monoplane wings slightly upcurved and with a high angle of attack. The pilot sat in the short uncovered fuselage with the 45 hp water-cooled V4 Mors automobile engine which drove 2 propellers, one at each end. The tail was comprised of 2 triangular rudders and a triangular elevator, and was braced by uncovered tail booms. Since Montgolfier was too short-sighted to fly himself, the first runs were made by Almyre Janvier; on 13 July 1910 in one of the first tests, it taxied into a fisherman's pole and the starboard wing and tail unit were torn apart.

   (Span: 16 m; length: 15 m)