Flight, December 1921

The Paris Aero Show - 1921

AVIONS HANRIOT
192, 194 and 196, Boulevard Bineau, Neuilly-sur-Seine.

   The second machine exhibited is a Hanriot school machine, type "H.D.14," with dual controls. It is an ordinary tractor two-seater biplane, with 80 h.p. Le Rhone engine. It is chiefly remarkable for the four-wheeled skid type undercarriage, evidently designed to withstand the average landing of a pupil. The dual controls are of a special type, dit debrayable, in which, by means of a Bowden cable, the pupil's controls can be instantly thrown out of gear, if he makes a mistake. The details are quite simple, consisting of pins operated by the flexible cable, the withdrawal of which results in the sliding of the pupil's control lever and foot bar telescopically in their tubes without affecting the external portion of the controls. The arrangement is, we understand, the subject a Hanriot patent.

Flight, January 1923

THE PARIS AERO SHOW 1922

HANRIOT ET CIE., NEUILLY-SUR-SEINE

   OF the two machines exhibited on the Hanriot stand, the "H.D.14," type 1923, is a school biplane with dual controls of the "type debrayable," patented by Hanriot, and in which the instructor can, at any moment, disconnect the pupil's controls should this be required in case of a serious mistake on the part of the latter. The machine is mainly similar to previous Hanriot school machines, of which several have been exhibited at previous Paris Shows, and does not therefore call for any comment. It is, however, of interest to recall that it was on a similar machine that Thoret recently "glided" for over 7 hrs. at Biskra, with his engine stopped. In view of this fact, the main characteristics of the machine are given below, from which it will be seen that if such a machine can glide for 7 hrs. on the upward currents, ordinary gliders, lightly loaded, should have no difficulty in reaching considerable heights and in remaining up for a whole day should the pilot desire to do so.
   The main characteristics of the Hanriot "H.D.14" are as follows :- Length, 23 ft. 10 ins.; span, 31 ft. 11 ins.; wing area, 340 sq. ft.; total loaded weight, 1,780 lbs.; wing loading, 5-25 lb./sq. ft.; engine, 80 h.p. le Rhone; power loading, 22-3 lb. h.p.
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Flight, December 1926

The Paris Aero Show 1926

HANRIOT

   THE Avions Hanriot firm, particularly well known for its training aeroplanes, large numbers of which have been supplied to the French and numerous foreign governments, will exhibit three machines: (1) a type H.35 advanced training aeroplane with 180 h.p. Hispano-Suiza engine; (2) a type H.41 training seaplane with 120 h.p. Salmson engine; and (3) a type H.14S ambulance aeroplane with 80 h.p. Rhone engine.
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Hanriot H.41 Training Seaplane

   The Hanriot H.41 (120 h.p. Salmson) training seaplane is an adaptation to the requirements of naval training of the well-known Hanriot H.D.14 training landplane' on which Lieut. Thoret made his famous powerless flights of several hours' duration. The H.41 is a twin-float biplane of orthodox timber construction, wire-braced and fabric covered. The floats are built of crossed planking, and are secured to the fuselage by steel tubes.

Specification of the Hanriot H.41

   Span, 10-26 m.; length, 8 m.; wing area, 34-9 sq. m.; weight empty, 725 kg.; weight loaded, 1,000 kg.; maximum speed, 120 km.p.h.; minimum speed, 52 km.p.h.

Hanriot H.14S Ambulance Aeroplane

   The Hanriot H.14S ambulance aeroplane, which was extensively used during the recent campaign in Morocco, where it rendered great services, is again an adaptation of the H.D. 14 training aeroplane.
   The H.14 is fitted with a longitudinal compartment which accommodates one stretcher case. A folding seat is also provided in case it is desired to carry the wounded in a seated position.


   IT may, perhaps, be said that the Societe des Avions Hanriot holds in France a position somewhat analogous to that occupied in this country by A. V. Roe & Co. Like the Avro company, the Hanriot firm is among the pioneers of aviation, the late M. Rene Hanriot having been among the earliest workers, and his original monoplane nicknamed in the early Brooklands days the "Henrietta," still being affectionately remembered by quite a number of British pilots. A somewhat later type of monoplane, rather like the early Nieuports in its general lines but with a different undercarriage, was flown a good deal in this country just before the oubreak of war, by one Sabelli, and will also be remembered by many of our readers. One should not, however, push the analogy between Hanriots and Avros too far, since whereas the latter have produced very large and powerful machines which have been adopted in recent years, it is believed that Hanriots have lately concentrated almost entirely on school machines, some of which correspond very closely to our Avro 504's.
   The death of M. Rene Hanriot has left the management of the firm in the hands of his son, Marcel Hanriot (who, in the early days of flying, had the distinction of being the world's youngest pilot), and, judging from the machines exhibited at Paris, M. Marcel is carrying on the family tradition of producing extremely useful school machines, as well as low-power Avions Santaires.
   The fact that the three Hanriot machines exhibited at Paris were all either actual training types, or special applications of training types, explains why there was, in their design and construction, nothing novel which requires particular note. All three machines have done good work in their respective spheres, and have been supplied in considerable numbers to the French and to foreign air services. The type H 14S ambulance plane has rendered excellent service in the Morocco campaign, and what the type lacks in load-carrying ability (it is fitted with a le Rhone rotary engine of 80 h.p. only) it makes up for by its great manoeuvrability and very low landing speed. It seems likely that such a machine could take off and alight almost anywhere, advantages compared with which the carrying of but a single stretcher case is probably insignificant. Anyway the machine is, we believe, intended mainly for advanced working right up to the field of battle, and doubtless the wounded were, in many cases, transferred to faster and more powerful machines for transport to base hospitals. The type seems to have possibilities, certainly under conditions such as those that obtained in the Moroccan affair, and the low power ambulance machine might be useful in parts of the British Empire also.