| 词条 | Blériot VIII | |||||||||||||||
| 释义 |
The Blériot VIII was a French pioneer era aeroplane built by Louis Blériot, significant for its adoption of both a configuration and a control system that were to set a standard for decades to come. The previous year, Blériot had experimented with a tandem wing design, the Blériot VI, then built another aircraft, the Blériot VII, in which the rear wing was somewhat smaller than the front wing. In the Blériot VIII, he reduced the size of the rear wing yet again, to the point where it was no longer contributing much in the way of lift, but had become the horizontal stabiliser. More novel was his adoption of a single control stick that would control both roll and pitch, while the rudder was controlled by a horizontal, centrally pivoted bar swung by the pilot's feet. A similar control arrangement for roll and pitch control had been incorporated into an aircraft the previous year by Robert Esnault-Pelterie, but the Bleriot VIII was the first use in a single airframe of the combination of hand/arm-operated joystick and foot-operated rudder control, that is in use to the present day, for the basic format of aerodynamic aircraft control systems.[1] Blériot found that the new aircraft flew very well, and for the first time he had sufficient control to fly in circles. He could also keep it aloft for up to eight minutes at a time. During the course of 1908, he modified it a number of times, calling the first major revision the VIII-bis and the next the VIII-ter. With this aircraft on June 29, Blériot claimed the second of three prizes being offered by the Automobile Club de France for a flight with an altitude of {{convert|200|m|ft|abbr=on}}. Longer and longer flights followed: on October 21, he made one of {{convert|7|km|mi|abbr=on}}, and ten days later flew {{convert|14|km|mi|abbr=on}} cross-country from Toury to Artenay and flew back again. Specifications (VIII-ter){{Aerospecs|met or eng?=met |crew=one pilot |capacity= |length m=7.50 |length ft=24 |length in=7 |span m=8.50 |span ft=27 |span in=11 |dia m= |dia ft= |dia in= |height m= |height ft= |height in= |wing area sqm=22 |wing area sqft=237 |rot area sqm= |rot area sqft= |aspect ratio= |empty weight kg= |empty weight lb= |gross weight kg= |gross weight lb= |eng1 number= |eng1 type= |eng1 kw= |eng1 hp= |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh= |max speed mph= |max speed mach= |cruise speed kmh= |cruise speed mph= |range km= |range miles= |endurance h= |endurance min= |ceiling m= |ceiling ft= |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }} References
1. ^{{cite book |title=Blériot XI: The Story of a Classic Aircraft. |last=Crouch |first=Tom |authorlink= |coauthors= |year=1982 |publisher=Smithsonian Institution Press |location= |isbn= |page=22 |accessdate=July 4, 2011}}
External links{{commons category}}
|related= |similar aircraft= |sequence= |lists= |see also= }}{{Louis Blériot aircraft}}{{DEFAULTSORT:Bleriot 08}} 5 : French experimental aircraft 1900–1909|Blériot aircraft|High-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1908 |
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