Blériot VII: Difference between revisions
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|manufacturer=[[Louis Blériot]] |
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|first flight=[[1907 in aviation|1907]] |
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The '''Blériot VII''' was an early [[France|French]] aeroplane built by [[Louis Blériot]]. |
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On 5 October Blériot began taxying trials at [[Issy-les-Moulineaux]]. The aircraft was difficult to control on the ground, and the tests ended when the undercarriage collapsed. Bleriot addressed this issue by redesigning the undercarriage, coming up with the arrangement that was used on nearly all of his subsequent aircraft designs. Each wheel was mounted on a castering trailing arm which was free to slide up and down along the round cross-section vertical members of a fixed, four-sided "bedstead" frame, the movement being sprung by [[bungee cords]].<ref>Elliott 2000, pp.60-61</ref> The aircraft was first flown on 16 November, when Blériot made a flight of around {{convert|500|m|ft|abr=on}},<ref>Opdycke 1990, p.62</ref> and further flights were made during November. At the end of November further modifictions were made: the wing was moved from its position immediately above the lower [[longerons]] to a position about two thirds of the way up the fuselage, and a tubular steel [[cabane strut|cabane]] structure was added to take the wing's bracing wires. In this configuration the aircraft was flown by Blériot on 6 December. On this occasion he succeeded in making a U-turn in the air, and the performance of the aircraft was impressive enough for [[Patrick Young Alexander|Patrick Alexander]] to write "I think Blériot is now leading the way".<ref>Elliott 2000, p.62</ref> However, the next flight trials, on 18 December, ended with a crash: the left wheel collapsed, causing the wing to dig in and the aircraft to turn over, resulting in its destruction. Blériot escaped without serious injury, his life possibly saved by the cabane structure, which acted as a roll bar. |
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==Design and development== |
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| ⚫ | Following the success with the [[tandem wing]] configuration of the [[Blériot VI]], he continued this line of development. The [[Tailplane|rear wing]] of his new design was about half the span of the forward wing, a step towards the configuration that would later be adopted as the basis for the vast majority of aircraft. The tail surfaces could be moved together, to act as [[Elevator (aircraft)|elevators]], or independently to act as [[aileron]]s: one of the first known examples of what would later become called [[elevon]]s. |
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On 5 October Blériot began taxying trials at [[Issy-les-Moulineaux]]. The aircraft was difficult to control on the ground, and the tests ended when the undercarriage collapsed. Bleriot addressed this issue by redesigning the undercarriage, coming up with the arrangement that was used on nearly all of his subsequent aircraft designs. Each wheel was mounted on a castering trailing arm which was free to slide up and down along the round cross-section vertical members of a fixed, four-sided "bedstead" frame, the movement being sprung by [[bungee cords]].<ref>Elliott 2000, pp.60-61</ref> |
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The aircraft was first flown on 16 November, when Blériot made a flight of around {{convert|500|m|ft|abbr=on}},<ref>Opdycke 1990, p.62</ref> and further flights were made during November. |
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At the end of November further modifications were made: the wing was moved from its position immediately above the lower [[longerons]] to a position about two thirds of the way up the fuselage, and a tubular steel [[cabane strut|cabane]] structure was added to take the wing's bracing wires. |
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In this configuration the aircraft was flown by Blériot on 6 December. On this occasion he succeeded in making a U-turn in the air, and the performance of the aircraft was impressive enough for [[Patrick Young Alexander|Patrick Alexander]] to write "I think Blériot is now leading the way".<ref>Elliott 2000, p.62</ref> |
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However, the next flight trials, on 18 December, ended with a crash: the left wheel collapsed, causing the wing to dig in and the aircraft to turn over, resulting in its destruction. Blériot escaped without serious injury, his life possibly saved by the cabane structure, which acted as a roll bar. |
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==Specifications== |
==Specifications== |
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|sink rate note= |
|sink rate note= |
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|lift to drag= |
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|wing loading kg/m2 |
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|wing loading lb/sqft= |
|wing loading lb/sqft= |
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|wing loading note= |
|wing loading note= |
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|more performance= |
|more performance= |
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==External links== |
==External links== |
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{{commons category |
{{commons category}} |
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* [ |
* [https://www.pbs.org/wgbh/nova/bleriot/imag-nf.html Nova: A Daring Flight] |
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* [http://www.earlyaviators.com/ebleriot1.htm earlyaviators.com] |
* [https://web.archive.org/web/20150619201047/http://www.earlyaviators.com/ebleriot1.htm earlyaviators.com] |
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* [http://www.centennialofflight.gov/essay/Aerospace/Bleriot/Aero47.htm U.S. Centennial of Flight Commission] |
* [https://web.archive.org/web/20070607140735/http://www.centennialofflight.gov/essay/Aerospace/Bleriot/Aero47.htm U.S. Centennial of Flight Commission] |
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{{Louis Blériot aircraft}} |
{{Louis Blériot aircraft}} |
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{{DEFAULTSORT:Bleriot 07}} |
{{DEFAULTSORT:Bleriot 07}} |
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[[Category:French experimental aircraft |
[[Category:1900s French experimental aircraft]] |
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[[Category:Blériot aircraft|7]] |
[[Category:Blériot aircraft|7]] |
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[[Category:Tandem-wing aircraft]] |
[[Category:Tandem-wing aircraft]] |
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[[Category:Single-engined tractor aircraft]] |
[[Category:Single-engined tractor aircraft]] |
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[[Category:Aircraft first flown in 1907]] |
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Latest revision as of 12:41, 9 May 2022
| Blériot VII | |
|---|---|
| |
| Role | Experimental aircraft |
| Manufacturer | Louis Blériot |
| First flight | 1907 |
| Number built | 1 |
The Blériot VII was an early French aeroplane built by Louis Blériot.
Design and development
[edit]Following the success with the tandem wing configuration of the Blériot VI, he continued this line of development. The rear wing of his new design was about half the span of the forward wing, a step towards the configuration that would later be adopted as the basis for the vast majority of aircraft. The tail surfaces could be moved together, to act as elevators, or independently to act as ailerons: one of the first known examples of what would later become called elevons.
On 5 October Blériot began taxying trials at Issy-les-Moulineaux. The aircraft was difficult to control on the ground, and the tests ended when the undercarriage collapsed. Bleriot addressed this issue by redesigning the undercarriage, coming up with the arrangement that was used on nearly all of his subsequent aircraft designs. Each wheel was mounted on a castering trailing arm which was free to slide up and down along the round cross-section vertical members of a fixed, four-sided "bedstead" frame, the movement being sprung by bungee cords.[1]
The aircraft was first flown on 16 November, when Blériot made a flight of around 500 m (1,600 ft),[2] and further flights were made during November.
At the end of November further modifications were made: the wing was moved from its position immediately above the lower longerons to a position about two thirds of the way up the fuselage, and a tubular steel cabane structure was added to take the wing's bracing wires.
In this configuration the aircraft was flown by Blériot on 6 December. On this occasion he succeeded in making a U-turn in the air, and the performance of the aircraft was impressive enough for Patrick Alexander to write "I think Blériot is now leading the way".[3]
However, the next flight trials, on 18 December, ended with a crash: the left wheel collapsed, causing the wing to dig in and the aircraft to turn over, resulting in its destruction. Blériot escaped without serious injury, his life possibly saved by the cabane structure, which acted as a roll bar.
Specifications
[edit]Data from Opdycke 1990, p.49
General characteristics
- Crew: 1
- Length: 9 m (29 ft 6 in)
- Wingspan: 11 m (36 ft 1 in)
- Wing area: 25 m2 (270 sq ft)
- Gross weight: 425 kg (937 lb)
- Powerplant: 1 × Antoinette V-8 water-cooled piston engine, 37 kW (50 hp)
- Propellers: 2-bladed
References
[edit]- Notes
- Bibliography
- Elliott, Bryan A. (2000). Blériot: Herald of an Age. Stroud: Tempus. ISBN 0-7524-1739-8.
- Opdycke, Leonard E. (1990). French Aircraft Before the Great War. Atglen, PA: Schiffer. ISBN 0-7643-0752-5.
- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 161.
- Devaux, Jean and Michel Marani. "Les Douze Premiers Aéroplanes de Louis Blériot". Pegase No 54, May 1989.
External links
[edit]