L.Opdyke French Aeroplanes Before the Great War (Schiffer)
Deleted by request of (c)Schiffer Publishing
Auffm-Ordt
Clement Auffm-Ordt, associated with a M Heeren, designed his first aeroplane in 1908, a light monoplane similar to the Demoiselle. The tail at the end of the single curved fuselage boom was a Hargrave box cell with the elevator in the middle and the rudder at the rear. The inner sections in each wing panel were adjustable apparently differentially for balance from dihedral to cathedral, and the wingtips curved up elliptically. The machine was built by Voisin and tested at Buc.
(Span: 8 m; wing area: 20 sqm; moving surfaces: span 2.4 m; 30 hp REP engine, with a 2-bladed REP prop of c 2.5 m in diameter)
The second machine was built in 1909, perhaps a radical modification of the first. This one had an aluminum frame, skids instead of wheels, a biplane tail with twin rudders, and control panels in the wings similar to those of the first design, though the wingtips did not curve upwards. It seems likely that the wings could be swept backwards independently. Powered by the same REP engine, it was tested for 2 months at St Moritz in Switzerland before managing at least one flight at an altitude of 2 m. One photograph shows what seems to be the end of a ramp; perhaps the flight that ended in a crash was attempted down this artificial slope.
Voisin
Auffm-Ordt: Voisin built this little monoplane in April 1908, described under Auffm-Ordt.