From TU 133,
When the First World War ended, René ARNOUX resumed his activities
as a creator and built in 1920 a new flying wing called ‘SIMPLEX".
Equipped with a 30 hp ANZANI engine, this aircraft had no drift.
It was equipped with wheels and skis intended to keep the aircraft
horizontal on the ground.
In 1922, René ARNOUX and Georges MADON created the company:
"The SIMPLEX aircraft" intended for commercially exploit ARNOUX's
ideas on tailless planes. Georges MADON, as of the First World War
with 41 victories, was subsequently killed in TUNIS in 1924 on a
plane GOURDOU-LESEURRE. The chief engineer and director of the
company was Pierre CARMIER and the test pilot obviously Georges
MADON.
Between the years 1922 and 1923, the year of its dissolution, the
company SIMPLEX had designed three machines, all without tail:
- a racing plane intended for the DEUTSCH 1922 Cup (race number 8)
which was to be piloted by MADON. A first copy equipped with a
HISPANO 8 Se engine of 320 hp fit its first flight on February 16, 1922,
but was destroyed before the race.
- A second machine, which should have received the Peugeot semi
diesel engine, was not completed.
These two airplaness had been studied by the engineer KERAVEC.
The cause of the accident of the first machine, accident in which
Georges MADON was injured, was the total lack of visibility forward
because of the Lamblin radiator placed just in front of the pilot, on the
top of the fuselage. Apart from this defect, the device was remarkable
for its gathered shape, its fairing of the propeller hub ensuring continuity with the fuselage, its vertical tail unit, the lower part of which contained the rear wheel and its attached front axle at the front of the fuselage, under the engine. Biconvex wings, monocoque and plywood construction.