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Bleriot Bleriot-XXVII Racer

Страна: Франция

Год: 1911

Bleriot - Bleriot-XXV Canard - 1911 - Франция<– –>Bleriot - Bleriot-XXVIII Populaire - 1911 - Франция


L.Opdyke French Aeroplanes Before the Great War (Schiffer)


Deleted by request of (c)Schiffer Publishing


Jane's All The World Aircraft 1913


BLERIOT Monoplanes. L. Bleriot, "Bleriot-Aeronautique," 39, Route de la Revolte, Paris-Levallois. Flying grounds: Buc Etampes and Pau.

L. Bleriot began to experiment in 1906, along Langley lines. By 1909 he was one of the leading French firms; and the first cross Channel flight was made by him.

Details of standard types:--

   XI bis. XXI. XXVII. XXVIII. XXVIII. Monocoque
   2-seater Military Single Single 2-Seater 2-Seater
   mono side by seat seater
   (1911 side mono. 1913. 1913. 1913.
   onward) 2-seater 1912.
   mono. 1912

Length....feet(m) 27(8.40) 27? (8.24) 28 (8.5) 25 (7.60) 27 (8.20) ...
Span......feet(m) 36 (11) 36 (11) 29? (9) 29 (8.80) 32 (9.75) 40(12.25)
Area..sq.ft.(m?.) 349 (33) 268 (25) 129 (18) 162 (15) 215 (20) 270 (25)
Weight, unladen...
........lbs.(kgs) ... 727 (330) 529 (240) 530 (240) 660 (300) 830 (375)
Weight, useful...
.......lbs.(kgs.) ... ... ... 286 (129) 550 (250) ...
Motor.......h.p. 50 Gnome 70 Gnome 70 Gnome 50 Gnome 70 Gnome 80 Gnome
Speed,max...
.......m.p.h.(km) 56 (90) 56 (90) 78 (125) 62 (100) 71 (115) 75 (150)
Endurance...hrs. ... ... ... ... ... ...
Number built
  during 1912 ... ... ... ... ... ...

Note.--The monos., as usual, are of wood construction; wheels only for landing. Rectangular section bodies. Warping wings, elevator in rear. Chauviere propeller. The monocoque has wood, steel and cork construction. Coque body. Skids to landing chassis. Levasseur propeller. Otherwise as the other monos.

Principal Bleriot flyers are or have been:--Aubrun, Balsan, Bleriot, Busson, Chavez, Cordonnier, Delagrange, Drexel, Efimoff, Gibbs, Hubert, Hamel, Moissant, Paulhan, Prevetau, Prevot, Prier, Radley, Thorup, Tyck, Wienzciers, and many others.


Журнал Flight


Flight, September 30, 1911.

Leblanc Trying the New Bleriot.

  ON Saturday last at Hardelot, Leblanc was trying a new Bleriot racer, No. 27, and unofficially was timed to attain a speed of 130 k.p.h. (81 m.p.h.). which promises well for this machine when it appears in public competitions. We give elsewhere photographs of this new machine.


Flight, December 30, 1911.

PARIS AERO SHOW.

L. Bleriot.

  FOUR monoplanes are on view on this stand, the 70-h.p. two-seater, which Hamel has popularised in England, the familiar 50-h.p. cross-country model, a new 50-h.p. racing monoplane, and a new low horse-power monoplane, type XXVIII, designated the "Popular" type. Of these machines we are already familiar with the former two, and no description of them is necessary.
  As far as neatness and soundness of design, and excellence of workmanship are concerned, the new 50-h.p. racing model could give points to any other machine in the Salon. The fuselage, which is tapered off towards the front to reduce head-resistance, is splayed out at its rear end, after the manner of the 70-h.p. two-seater, to form a flat stabilising tail. The elevator is semielliptical in shape and is hinge d to the rear of the tail surface. Contrary to customary Bleriot practice, the engine is not supported on both sides of its crank case, but protrudes from the front of the fuselage, a system which allows of great neatness of mounting and greater accessibility to the engine. Bleriot, too, has altogether gone away from the design of landing chassis to which he has so faithfully adhered since long before his cross-Channel flight. In the new type the two wheels are each supported by a pair of laminated steel springs, and only four struts are employed to attach the system to the fuselage. Its simplicity and neatness must appeal strongly to those who have given any thought to the subject of chassis design. One failing it has, however, and one which could be very easily overcome is that no side-play of the landing wheels is provided for. In this machine the controlling lever is no longer provided with the aluminium dome from which it originally derived the name of cloche, but is made to operate the wing-warping and the elevator through an extremely neat system of chains and chain-wheels. The bottom pylone, from which the wing-warping is actuated, is constructed of two steel tubes of oval section, through which pass the wires connecting the mechanism at its base to the controlling-lever. A notable point about the design of the machine is that as much head resistance as possible is eliminated, and to this end not only has the design of the fuselage and landing chassis received special study, but several parts which would normally present a flat surface to the relative wind have been enclosed by stream-line shapes of wood. Tested over the sands at Hardelot, with Leblanc at the lever, this machine has developed a speed of 80 miles an hour, and on this account we are expecting to see it figuring largely in next season's meetings.
<...>

Principal dimensions, &c. :-

Racer type-
Length 21 ft.
Span 23 "
Area 132 sq. ft.
Weight 500 lbs.
Speed 80 m.p.h.
Motor 50-h.p. Gnome.
Price L960.

Журнал - Flight за 1911 г.
NEW RACING TYPE BLERIOT MONOPLANE (No. XXVII). - Many details in the design of Bleriot's two-seater model are incorporated in the new single-seater racer with which Bleriot is now experimenting over the sands at Hardelot. The main body is constructed in the form of a double-ended wedge, at the front of which protrudes the 50-h.p. Gnome engine, mounted in position without the employment of a bearing between the propeller and the engine. The stabiliser, as in the two-seater model, is constructed integrally with the fuselage and at the rear edge is hinged the elevator. The overall length of the machine is 7 metres, and the wings, which have a supporting surface of 12 sq. metres, span 8.90 metres from tip to tip. This new model, which weighs 430 kilogs., has been timed to attain a speed of 130 kiloms. an hour.
Jane's All The World Aircraft 1913 /Jane's/
The Type XXVII, similar to the XXI.
Журнал - Flight за 1911 г.
Front view of the new Bleriot racer (No. XXVII), showing the reduced landing carriage, the overhung mounting of the engine and propeller, and the peculiarly shaped cowl which prevents the lubricating oil from reaching the pilot. Bleriot, such a strong believer in mounting the engine by bearings on both sides, has, it will be noted, at last abandoned that method in favour of one which renders the motor considerably more accessible. It will be observed that a very slight dihedral angle is employed on this new model, and that the main body has a decided taper towards the front to minimise head resistance.
Журнал - Flight за 1911 г.
THE BLERIOT STAND. - At the bottom of the picture, with the warnished wings, is the new "Popular" type Bleriot, fitted with a Y-type Anzani motor of 35-h.p. as listed at L380. The larger monoplane is the 70-h.p. military two-seater, while the tail-half of a machine emerging from under the right wing of the two-seater belongs to the new 50-h.p. Racer.
Журнал - Flight за 1912 г.
The Bleriot stand at the Paris Aero Salon, showing the extremely neat 50 h.p. Gnome-englned racer in the centre. The clean design of the landing chassis is the chief feature of this machine.
Журнал - Flight за 1911 г.
Six types of landing gear at the Paris Aero Salon.
Журнал - Flight за 1911 г.
Sketch of the new 50-h.p. Bleriot racing monoplane.