A second biplane followed it, this time with no Fabre girders at all: the wings had steel tube leading edges and main spars, and pairs of thin interplane struts braced both. 2 thin booms supported the front elevator, and a second pair supported the tail. Otherwise it was similar to the first biplane, though seemingly with a wire trailing edge and fixed ribs; it retained the aluminum nacelle. Paulhan flew it in March 1911 at St Cyr. It was easily disassembled for transport.
   A third one followed, this time with a single boom replacing the pair of tail outriggers, and a slightly different rib arrangement. Paulhan flew this in May 1911.