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Little-Known French Projects and Prototypes

hesham

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hesham

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From TU 162,

here is a small Info about glider,designed by Mr. Henry Boursiac.
 

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hesham

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From TU 169,

C.A.M. (Construction Aéronautique du Maroc):

At the end of the thirties, the test pilot Reré Wauthier created in
Rabat the Société de Construction Aéronautique du Maroc (C.A.M.).
This company produced in 1939, under license Léopoldoff, 6 devices
type L-3 Colibri which received the name CAM-1. Five of
these machines received a Minié 4 Do "Horus" engine of 70 hp while
that the sixth received a Walter engine. Shock absorbers
oleopneumatic and a reinforced cell distinguished these machines
initial L-3s. The Walter-powered CAM-1 will be offered in 1949 to the
Fédération Nationale Aéronautique by Monsieur Wauthier.
 

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hesham

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hesham

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From Aerophile 1934.
 

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hesham

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The Moineau biplane was designed and built by MM Bessard & Millevoye at Saint-Ouen in 1935. The drawing above, together with a detailed review of this aeroplane, can be found in Les Ailes of 15 August 1935. The name 'Le Moineau' appears on its fuselage in the accompanying photograph.
From Aerohpile 1934.
 

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hesham

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Mr. Botty designed an experimental airplane in 1920,no more details are known.

there was unknown airplane from 1920,designed by Dubois-Piquet,any idea ?.
From Aerophile 1920,

Some missing solutions. - Above, from left to right: Dubois-Piquet
swing wing plane. Winged monoplane flexible Picat-Dubretul.
Tailless plane - Bottom, from left to right: Jourdan monopian.
Coand monoplane of the Reims military competition. Monoplane
Botty kind (Lady).
 

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hesham

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From TU 170,

BERNET (New Manufacturer):

In 1935, in Depienne in Tunisia Mr. Bernet made a small plane. which unfortunately the editor does not know.
 

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hesham

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From TU 305 & Aerophile 1922,

here is all story for Mr. Robert Verrimst and Mr. Alexis Maneyrol,
if someone can translate well ?.
 

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hesham

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From TU 226,

Mr. Henri Le Boloch designed a system for Brake Flaps in 1920,followed by Lift Machine with a propellers,and
a Helicopter in 1934/35,we spoke about him before here;


The first is the subject of the patent 526,166 filed February 20, 1920 and which relates to lower shutters, in fact
brake flaps.

In 1934, he proposed a system lift based on an original principle. A small diameter propeller special shape, the
profile not including than an attack spout with no back surface,rotates horizontally at very high speed flush with
a flat surface. To the very high rotational speeds, the air streams, violently spread by the edge of the propeller
as by a projectile, cannot close immediately behind her. The result is the formation of an intense and remarkably extensive depression. Air nets,by folding back, draw in some so the profile of least resistance determined by the
leading edge.

Such a propeller, even in rotation very fast in the open air, would not lead to no practical results; but, and there it
is the crux of this invention, if this rotation takes place flush with a horizontal plane surface, this surface harvest all
the benefit of the area intense pressure, in the form of a vertical thrust. Of course, the contact must be intimate to compel all the air streams to pass through the upper surface.,it suffices to coat the surface plane with a simple film
of oil very viscous,this device therefore consists of get a pressure difference between the upper part of the plane on which turns the propeller which lifts the column of air at each pass, and the lower part on which is exerted without
constrains atmospheric pressure. The result must be a lifting force.

To roughly quantify, we can say that if the total vacuum existed on the surface swept by the propeller, we would
obtain a force of 10,000 kg per meter square. Like the depression area is only one fifth of the swept area and
admitting 50% of all orders, we arrive at 1000 kg per meter square of swept area.

Editor does not know if work were conducted on the basis of this idea, but in 1935, it was announced that Le Boloch
is studying a helicopter at Saint-Cyr in collaboration with Mr. Toussaint.
From, Special Types of Rotary Wing Aircraft - Volume 11,

Mr. Henry LeBoloch or Le Boloch designed a dirigible-helicopter during
1920s,I spoke about him before,and also TU magazine,issue 226,he had
a real Projects.
 

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