“Villiers V”的意思、由来-开放百科全书

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Villiers V

释义

Design
Specifications
References

name=Villiers V

image=File:Villiers_V_2-view_L'Aéronautique_December,1926.png

caption=Villiers V 2-view drawing from L'Aéronautique December,1926

}}{{Infobox Aircraft Type

type=Night fighter

national origin=France

manufacturer=Ateliers d'Aviation François Villiers

designer=

first flight=1926-7

introduced=

retired=

status=

primary user=

more users=

produced=

number built=1

program cost=

unit cost=

developed from=

variants with their own articles=
}}

The Villiers V, Villiers 5 or Villiers 5CN2 was a French night fighter built in the mid-1920s. It did not go into production.

Design

The Villiers V made its first public appearance at the 1926 Paris Aero show, possibly before its first flight. As the military designation CN2 indicated, it was a two-seat chasseure de nuit or night fighter, designed and built to an Aviation Militaire specification. It was a sesquiplane with an upper to lower wing span ratio of about 1.4 and an area ratio of about 2.2 as the chord of the lower wing was also smaller. Apart from a centre section cut-out in the upper wing to enhance visibility from the cockpits and small root extensions on the lower wing, the two wings were strictly rectangular in plan and were wood framed and fabric covered. The Villiers V was a single bay biplane braced on each side by a single, faired duralumin interplane strut which leant outward to support the upper overhang and forward because of significant stagger.^[3] Four cabane struts supported the upper centre section close to the fuselage. Ailerons were fitted only on the upper wing.

The Villiers V's fuselage was a flat sided, plywood covered monocoque. Its engine was a {{convert|450|hp|kW|abbr=on|order=flip}} water cooled W-12 Lorraine-Dietrich 12Eb in a cowling which followed the outline of the three separate cylinder blocks. The pilot's open cockpit was ahead of the trailing edge, under the upper wing cut-out, with the gunner close behind. The pilot controlled a pair of fixed synchronised {{convert|7.7|mm|in|abbr=on|3}} Vickers machine guns firing through the propeller disc and the gunner was provided with a pair of {{convert|7.7|mm|in|abbr=on|3}} Lewis guns on a flexible mount.

The tail unit was conventional, with a broad chord, clipped triangular tailplane mounted on top of the fuselage and fitted with separate, round edged, balanced elevators. The triangular fin and its full, rounded unbalanced rudder were also broad, the rudder extending down to the keel and operated in a gap between the elevators. The night fighter had fixed conventional tailskid landing gear with mainwheels on a single axle sprung to a pair of V-struts from the lower fuselage, assisted by a long tailskid.

The night fighter was tested by the military under the designation Vil 5CN2 but was found not to provide enough improvement over existing equipment to justify production.

Specifications

{{Aircraft specs
|ref=Green and Swanborough (1994) p.582
|prime units?=met

|genhide=
|crew=two
|capacity=
|length m=8.75
|length note=
|span m=
|span ft=
|span in=
|span note=
|upper span m=12.00
|upper span note=
|lower span m=
|lower span ft=
|lower span in=
|lower span note=
|height m=3.30
|height note=
|wing area sqm=40.0
|aspect ratio=
|airfoil=
|empty weight kg=1274
|empty weight note=
|gross weight kg=2105
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity={{convert|480|l|Impgal USgal|abbr=on}} in a tank that could be jettisoned in flight.
|more general=

|max speed kmh=224
|max speed note=at sea level, {{convert|210|km/h|mph|abbr=on}} at {{convert|4000|m|ft|abbr=on}}
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|minimum control speed kmh=
|minimum control speed mph=
|minimum control speed kts=
|minimum control speed note=
|range km=
|range miles=
|range nmi=
|range note=
|endurance=
|ceiling m=7000
|ceiling note=service
|g limits=
|roll rate=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=43 min to {{convert|6500|m|ft|abbr=on}}
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|more performance=

|armament=

2× fixed synchronised {{convert|7.7|mm|in|abbr=on|3}} Vickers machine guns firing through propeller disc
2× paired {{convert|7.7|mm|in|abbr=on|3}} Lewis guns on flexible mount in rear cockpit

}}

References

1. ^¹{{cite journal |date=16 December 1926 |title=Villiers|journal=Les Ailes |issue=287 |pages=5|url=http://gallica.bnf.fr/ark:/12148/bpt6k6568319p/f5 }}

^[1]
}}{{Villiers aircraft}}

3 : Sesquiplanes|Villiers aircraft|French fighter aircraft 1920–1929

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