After Armand Dufaux had flown over Lake Geneva for its entire length with the Dufaux 4 on 28 August 1910, and the world record by Louis Blériot was significantly exceeded,[1] Armand and his brother Henri produced the first aircraft in Switzerland. In the months after the record flight of 28 August 1910, the Dufaux brothers undertook numerous other flights and participated with other flight pioneers - including Emile Taddéoli (1879–1920),[2]flying boat Pioneer who was, until his death, chief pilot of Ad Astra Aero.
The record-breaking Dufaux 4 provided space for only the pilot but the Dufaux 5 was designed by the Dufaux brothers as a two-seater.[3] The Dufaux 5 was designed based on the experience of Dufaux 4 and the remaining nameless model 2 with eight wings. The basic design of the Dufaux 4 was substantially expanded by one seat for a passenger and the Anzaniaircraft engine was replaced by the 91-kilogram Gnome 70 seven-cylinder rotary engine supplying 53 kW (70 hp). Otherwise, the aircraft differed little from similar structures from the pioneering years of aviation. The supporting structure of Dufaux 4 appeared as the same total length, wing span and unchanged height, while the performance was increased despite the increased launch weight. The previous two ailerons between the wings were increased to four, arranged on the rear of the wings as in today's designs.
Useedit
The biplane was manufactured from December 1910, in the company Mégevet, Corsier (where the Dufaux brothers had completed their initial flight tests). The total number of manufactured aircraft should be at least 15 units (including Dufaux 4) but this needs to be clarified.
The Swiss army had already rejected using the Dufaux 4 in May 1910, since they saw them as inappropriate for military use. The now much improved Dufaux 5 led Ernest Failloubaz (1892–1919), the youngest pilot in Switzerland (who was 19 years of age at that time), to fly it. From 4 to 6 September 1911, before the Army leadership as observers in the maneuvers of the 1st Army Corps reconnaissance missions, he flew with his friend Gustave Lecoultre. There was a crash landing on the last day of the three-day operation of these flights to begin the Swiss military aviation.[4]
Dufaux was used from October 1911 at the Flight School founded by Emile Taddéoli in Viry, near Geneva. Ernest Failloubaz may have been the first owner of a Dufaux 5. He had ordered Dufaux 5 from the flight school in Avenches in November 1910, with which he had already conducted a test flight in the presence of Armand Dufaux, followed by an unknown number of passenger flights in the first half of January 1911. Armand Dufaux increased the production to 16 by 18 April at the air show at Viry, where he showed the airplane to interested observers. A flight demonstration by Emile Taddéoli in Annecy crashed in Geneva, without any harm to humans and machines, and the flight demonstrations continued till July 1911. Presumably, from this point, the Aircraft Production had been discontinued by the brothers Dufaux, but three Dufaux aircraft were produced in Avenches, probably in the autumn of 1911.
Notable owners of Dufaux 5 are Armand Dufaux, Emile Taddéoli, Ernest Failloubaz, François Durafour (1888–1967),[5] Cobioni and Beck. Charles Girod, Georges Cailler, Gustave Lecoultre, Hollinger, Beck and Knutti received flying lessons in the flight school of their chief pilot Durafour at Avenches in the course of 1911. The model was used in the School of Failloubaz probably at least until 1916.
As an alternative to the Gnome rotary engines, Oerlikon four-cylinder aircraft engines were also used. The Dufaux 4, as the oldest surviving Swiss aircraft is in the collection of the Swiss Transport Museum.[7]
Notesedit
Wikimedia Commons has media related to Dufaux 5.
^ abspip.php? article219Pionniers Armand Dufaux 'record flight of 28 August 1910 to pionnair-en with a detailed description and photos (French)
^article178 Pierre Emile Taddéoli on pionnair-ge(French)
^The "Dufaux 4" on pionnair-en with information and photos (French)
^official website of the Swiss Air Force:The first Swiss Military Aircraft[permanent dead link], accessed on 24 December 2008
^. Archived from the original on 2003-12-18. Retrieved 2009-12-04.
^[The . Archived from the original on 2011-07-07. Retrieved 2009-12-04. "Dufaux 4" in the Transport Museum in Lucerne], accessed on 23 December 2008
April 16, 2024
dufaux, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, december, 2009, lea. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Dufaux 5 news newspapers books scholar JSTOR December 2009 Learn how and when to remove this template message The Dufaux 5 was a two seat airplane built in 1910 11 by French Swiss aviation pioneers Henri and Armand Dufaux Dufaux 5Role Military aircraftManufacturer Henri DufauxDesigner Henri DufauxFirst flight 1910Ernest Failloubaz pilot and Gustave Lecoultre observer demonstrating the Dufaux 5 to the Swiss Army from September 4 to 6 1911 Contents 1 Construction and development 2 Use 3 Technical data 4 Variants and whereabouts 5 NotesConstruction and development editAfter Armand Dufaux had flown over Lake Geneva for its entire length with the Dufaux 4 on 28 August 1910 and the world record by Louis Bleriot was significantly exceeded 1 Armand and his brother Henri produced the first aircraft in Switzerland In the months after the record flight of 28 August 1910 the Dufaux brothers undertook numerous other flights and participated with other flight pioneers including Emile Taddeoli 1879 1920 2 flying boat Pioneer who was until his death chief pilot of Ad Astra Aero The record breaking Dufaux 4 provided space for only the pilot but the Dufaux 5 was designed by the Dufaux brothers as a two seater 3 The Dufaux 5 was designed based on the experience of Dufaux 4 and the remaining nameless model 2 with eight wings The basic design of the Dufaux 4 was substantially expanded by one seat for a passenger and the Anzani aircraft engine was replaced by the 91 kilogram Gnome 70 seven cylinder rotary engine supplying 53 kW 70 hp Otherwise the aircraft differed little from similar structures from the pioneering years of aviation The supporting structure of Dufaux 4 appeared as the same total length wing span and unchanged height while the performance was increased despite the increased launch weight The previous two ailerons between the wings were increased to four arranged on the rear of the wings as in today s designs Use editThe biplane was manufactured from December 1910 in the company Megevet Corsier where the Dufaux brothers had completed their initial flight tests The total number of manufactured aircraft should be at least 15 units including Dufaux 4 but this needs to be clarified The Swiss army had already rejected using the Dufaux 4 in May 1910 since they saw them as inappropriate for military use The now much improved Dufaux 5 led Ernest Failloubaz 1892 1919 the youngest pilot in Switzerland who was 19 years of age at that time to fly it From 4 to 6 September 1911 before the Army leadership as observers in the maneuvers of the 1st Army Corps reconnaissance missions he flew with his friend Gustave Lecoultre There was a crash landing on the last day of the three day operation of these flights to begin the Swiss military aviation 4 Dufaux was used from October 1911 at the Flight School founded by Emile Taddeoli in Viry near Geneva Ernest Failloubaz may have been the first owner of a Dufaux 5 He had ordered Dufaux 5 from the flight school in Avenches in November 1910 with which he had already conducted a test flight in the presence of Armand Dufaux followed by an unknown number of passenger flights in the first half of January 1911 Armand Dufaux increased the production to 16 by 18 April at the air show at Viry where he showed the airplane to interested observers A flight demonstration by Emile Taddeoli in Annecy crashed in Geneva without any harm to humans and machines and the flight demonstrations continued till July 1911 Presumably from this point the Aircraft Production had been discontinued by the brothers Dufaux but three Dufaux aircraft were produced in Avenches probably in the autumn of 1911 Notable owners of Dufaux 5 are Armand Dufaux Emile Taddeoli Ernest Failloubaz Francois Durafour 1888 1967 5 Cobioni and Beck Charles Girod Georges Cailler Gustave Lecoultre Hollinger Beck and Knutti received flying lessons in the flight school of their chief pilot Durafour at Avenches in the course of 1911 The model was used in the School of Failloubaz probably at least until 1916 Technical data editPerformance indicator Dufaux 5 6 Dufaux 4 1 Length 9 5 m 9 5 mHeight 2 7 m 2 7 mWingspan 8 5 m 8 5 mWing area 24 0 m 24 0 m max Start Weight 555 kg 320 kgCurb weight 340 kg 180 kgCrew pilot and passenger PilotDrive Gnome rotary engine with 53 kW 70 hp Anzani engine with 19 kW 25 hp Start Speed 42 km hSpeed 84 km h 52 mph 60 km hRate of climb 0 3 m sCeiling 600 m 500 mWing loading 23 kg mScope 60 km 37 mi 1 hour flight 66 km 41 mi 32 minute flight Variants and whereabouts editAs an alternative to the Gnome rotary engines Oerlikon four cylinder aircraft engines were also used The Dufaux 4 as the oldest surviving Swiss aircraft is in the collection of the Swiss Transport Museum 7 Notes edit nbsp Wikimedia Commons has media related to Dufaux 5 a b spip php article219Pionniers Armand Dufaux record flight of 28 August 1910 to pionnair en with a detailed description and photos French article178 Pierre Emile Taddeoli on pionnair ge French The Dufaux 4 on pionnair en with information and photos French official website of the Swiss Air Force The first Swiss Military Aircraft permanent dead link accessed on 24 December 2008 Francois Durafour on pionnair ge French The Virtual Aviation Museum Dufaux 5 Archived from the original on 2003 12 18 Retrieved 2009 12 04 The Dufaux 4 Verkehrshaus der Schweiz Offen fur Entdecker Archived from the original on 2011 07 07 Retrieved 2009 12 04 Dufaux 4 in the Transport Museum in Lucerne accessed on 23 December 2008 Retrieved from https en wikipedia org w index php title Dufaux 5 amp oldid 1149255714, wikipedia, wiki, book, books, library,
