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Wibault Wib.7


Single Seat Monoplane Fighter


France | 1929



"The Wibualt 7 became a French monoplane fighter design of the Interwar years - seeing foreign combat service with Paraguay during the Chaco Air War."



Authored By: Staff Writer | Last Edited: 09/09/2016 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
In the early 1920s, Societe dea Avions Michel Wibault began work on a new monoplane fighter featuring a single-seat, single-engine layout with fixed, wheeled undercarriage and strut-supported mainplane (parasol type). A first-flight was had in 1924 and the type saw introduction during 1929 with the French Air Force becoming its primary operating service. Eventually the nations of Chile, Paraguay and Poland all operated the type - in the case of Paraguay the series saw action in the "Chaco War" against Bolivia.

"Societe des Avions Michel Wibault" (SAMW) was founded after the fighting of World War 1 in 1919 by Michel Wibault in Billancourt, France with a focus on aircraft. The company's first entry became the Wibault 1 fighter and this was followed by the Wibault 2 series night bomber of 1921. The firm went on to generate a healthy resume in the field of aviation and work progressed throughout the 1920s and 1930s until it merged with Penhoet.

The prototype aircraft was designated as Wib.7 and this model sported a Gnome-Rhone 9Ad radial piston engine of 480 horsepower. Three prototypes in all were produced and twenty-five production-quality units followed this standard. The Wb.71 were Wib.7 aircraft incorporating the Hispano 12 Jb series engines of 400 horsepower but eventually existed under the Wib.9 designation. The Wib.72 offering, with a reinforced structure, followed to fill future orders for both the French Air Force and the Polish Air Force. Poland, as well as Paraguay, received the follow-up Wib-73 which carried Lorraine-Dietrich 12Eb W series engines of 451 horsepower. Twelve were built. The Wib.74 became eighteen French Navy aircraft, modified for maritime service with a crew of two and slightly sweptback mainplanes.

Vickers of Britain manufactured (under license) a variant all their own as the Vickers Wibault "Scout", these completed with Britsol "Jupiter" engines. Twenty-six of this standard went to Chile.

As designed, the Wib 7 showcased a length of 7.45 meters, a wingspan of 11 meters and a height of 2.9 meters. It held an empty weight of 830 kilograms against a gross weight nearing 1,445 kilograms. Power from its Gnome-Rhone 9Ac series radial of 420 horsepower allowed for a maximum speed of 230 kph, a range out to 600 kilometers, and a service ceiling of 8,500 meters. Rate-of-climb was 1,070 feet-per-second.

As a military-minded fighter, the aircraft carried 2 x 7.7mm air-cooled Vickers machine guns paired over the nose and firing through the two-blade propeller by way of interrupter gear.

Paraguay ultimately received seven Wib.73 models but only three remained in service at the outbreak of the Chaco War. Beyond this the series saw little action and was superseded by more impressive types appearing in the inter-war years.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Wibault Wib.7 Single Seat Monoplane Fighter.
1 x Gnome-Rhone 9Ac engine developing 420 horsepower and driving two-bladed propeller at the nose.
Propulsion
140 mph
225 kph | 121 kts
Max Speed
27,887 ft
8,500 m | 5 miles
Service Ceiling
373 miles
600 km | 324 nm
Operational Range
1,070 ft/min
326 m/min
Rate-of-Climb
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Wibault Wib.7 Single Seat Monoplane Fighter.
1
(MANNED)
Crew
24.4 ft
7.45 m
O/A Length
36.1 ft
(11.00 m)
O/A Width
9.5 ft
(2.90 m)
O/A Height
1,830 lb
(830 kg)
Empty Weight
3,186 lb
(1,445 kg)
MTOW
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
RANGE
ALT
SPEED
Armament
Available supported armament and special-mission equipment featured in the design of the Wibault Wib.7 Single Seat Monoplane Fighter .
2 x 7.7mm Vickers machine guns in fixed, forward-firing positions over nose (with interrupter gear).
Variants
Notable series variants as part of the Wibault Wib.7 family line.
Wib.7 - Prototype models and 25 production examples.
Wib.71 - Existing stock fitted with Hispano 12Jb engines of 400 horsepower; becoming Wib.9 designation.
Wib.72 - Reinforced aircraft for French Air Force and Polish Air Force; 85 examples completed.
Wib.73 - Polish and Paraguay models; fitted with Lorraine-Dietrich 12Eb W series engines of 451 horsepower; 11 examples.
Vickers Wibault Scout - Vickers Ltd license-production form completed with Bristol Jupiter engines for Chilean Air Force; 26 examples.
Operators
Global customers who have evaluated and/or operated the Wibault Wib.7. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 167 Units

Contractor(s): Societe des Avions Michel Wibault - France / Vickers - UK
National flag of Chile National flag of France National flag of Poland National flag of the United Kingdom

[ Chile; France; Paraguay; Poland; United Kingdom ("Scout") ]
Relative Max Speed
Hi: 150mph
Lo: 75mph
Aircraft Max Listed Speed (140mph).

Graph Average of 113 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
167
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
1 / 1
Image of the Wibault Wib.7
Image from the Public Domain.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
AIR-TO-AIR COMBAT
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Wibault Wib.7 Single Seat Monoplane Fighter appears in the following collections:
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