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“The Application of the Jet Flap to Helicopter Rotor Control”

Published online by Cambridge University Press:  26 October 2023

R Dorand
R Dorand*
Affiliation:
Giravions Dorand

Extract

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The Chairman, in opening the meeting, said that it was a pleasure to welcome at that meeting of the Association a distinguished engineer from France, Monsieur Rene Dorand, who was well known internationally as a pioneer of the helicopter M Dorand’s name became associated with that of Louis Breguet in 1931 when they built in collaboration a helicopter with co-axial rotors That machine had achieved considerable success both in hovering and in forward flight It established international records for a flight duration of more than one hour and a forward speed of more than 100 k p h, and it also demonstrated an autorotative descent from 100 meters

M Dorand became a graduate engineer in 1921, and in the same year took a diploma in electrical engineering He then joined the Louis Breguet Aircraft Company as a graduate engineer and became Technical Director of the Breguet-Dorand Helicopter development group

Type
Research Article
Information
The Journal of the Helicopter Association of Great Britain , Volume 13 , Issue 6 , December 1959 , pp. 323 - 362
Copyright
Copyright © Royal Aeronautical Society 1959

References

REF 1-A ASSOCIATION TECHNIQUE MARITIME ET AERONAUTIQUE, Jan, 1955 “Hypersustentation et pilotage des avions par controle de circulation,” by Ph POISSON-QUINTON and P JOUSSERANDOT This statement sums up the results of the fundamental experimental survey under flat flow, at the Saint-Cyr INSTITUT AEROTECHNIQUE and undertaken by the OFFICE NATIONAL D’ETUDES ET DE RECHERCHES AERONAUTIQUES (ONERA) in co-operation with the SERVICE TECHNIQUE AERONAUTIQUE and Societe “GIRAVIONS DORAND”Google Scholar
REF 1-B “Essais systematiques d’hypercirculation par soufflage au bord de fuite d’un profil NACA 0018 en incompressible” (Jan, 1955) Onera Technical Notice, 2/1727-A Testing effected by the OFFICE NATIONAL D’ETUDES ET DE RECHERCHES AERONAUTIQUES (ONERA) in co-operation with the SERVICE TECHNIQUE AERONAUTIQUE and Societe “GIRAVIONS DORAND”Google Scholar
REF 1-C “Essais en ecoulement plan transsonique d’un profil avec soufflage pres du bord de fuite” (Jan, 1959) Onera Technical Notice, 4/1833-A These tests relate to a DORAND jet deviatorGoogle Scholar
REF 2 Docaero No 25 Jan, 1954 “Amelioration des qualites des voilures tournantes en translation par pilotage multicyclique” by Dorand, RGoogle Scholar
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REF 3-B Journal of the American Helicopter Society Vol 4, No 3, July, 1959 “Application of the jet-flap principle to helicopters,” Rene DORAND — Gabriel D BOEHLERGoogle Scholar
REF 4 Congres International Aeronautique, Paris, June, 1959 “Application pratique du controle d’un rotor d’helicoptere par le volet de bord de fuite comportant le soufflage” Rene DORANDGoogle Scholar
REF 5 Transport Helicopters “Operating Cost Analysis Methods (Hiller)Google Scholar
REF 6 “Design study of the feasibility of Flying-crane-type helicopters incorporating the jet-flap control system” Report No 1088—Giravions DorandGoogle Scholar
REF 7-A Giravions Dorand, Patent of Invention (P V No 777,763, filed 10-29-58) “Moyeu de rotor d’helicoptere rapide”Google Scholar
REF 7 Giravions Dorand, Patent of Invention P V No 777,595, granted on 10 27 58 “Perfectionnement aux organes de controle de voilures tournantes”Google Scholar
REF 7-C Giravions Dorand, Patent of Invention PV No 777,596, granted on 10 27 58 “Perfectionnements technologiques aux procedes de déviation de nappes fluides ejectees par le bord de fuite des pales d’helices ou d’ailes”Google Scholar
REF 7-D Giravions Dorand, Patent applied for “Moyeu d’helicoptere a rotor souffle”Google Scholar
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REF 9 Patents granted to Societe GIRAVIONS DORAND, concerning the generation and circulation of the operating fluid as well as thermo propelled rotors control including blowingGoogle Scholar
9-A — U S Patent No 2 650 666, allowed on 7/16/47Google Scholar
9-B — British Patent of Invention No 634 332, allowed on 7/18/47Google Scholar
9-C — Canadian Patent No 498 532, granted on 12/15/1953Google Scholar
REF 10 Power plantsGoogle Scholar
REF 10-A Communication to the Association Technique et Aeronautique (Science et Technique Aeronautiques), June, 1947 “Distances franchissables comparees d’helicopteres comportant divers types d’installations motrice”Google Scholar
Ref 10-B Communication at the first French symposium on gyrodynes “Giravions a rotors thermopropulses par fluide moteur à basse pression”Google Scholar
REF 11 “Simulateur de vol d’helicopteres,” by R Dorand (Science et Technique Aeronautiques)Google Scholar