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Avro 566 Avenger

Biplane Fighter Prototype Aircraft

Avro 566 Avenger

Biplane Fighter Prototype Aircraft

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
MEDIA
OVERVIEW



The Avro 566 Avenger was a private venture attempt to produce a high-performance biplane fighter for service with the Royal Air Force - only a prototype was completed.
National Flag Graphic
ORIGIN: United Kingdom
YEAR: 1926
STATUS: Cancelled
MANUFACTURER(S): A.V. Roe (Avro) - United Kingdom
PRODUCTION: 1
OPERATORS: United Kingdom (cancelled)
SPECIFICATIONS



Unless otherwise noted the presented statistics below pertain to the Avro 566 Avenger model. Common measurements, and their respective conversions, are shown when possible.
CREW: 1
LENGTH: 25.49 feet (7.77 meters)
WIDTH: 31.99 feet (9.75 meters)
HEIGHT: 10.24 feet (3.12 meters)
WEIGHT (EMPTY): 2,370 pounds (1,075 kilograms)
WEIGHT (MTOW): 3,219 pounds (1,460 kilograms)
ENGINE: Avenger I: 1 x Napier Lion VIII engine developing 525 horsepower and driving two-bladed propeller at the nose.
SPEED (MAX): 180 miles-per-hour (290 kilometers-per-hour; 157 knots)
CEILING: 21,982 feet (6,700 meters; 4.16 miles)
RATE-OF-CLIMB: 2,100 feet-per-minute (640 meters-per-minute)




ARMAMENT



None Fitted. Assumed armament of 2 x 0.303 machine guns synchronized to fire through the spinning propeller blades.
VARIANTS



Series Model Variants
• 566 Avenger ("Avenger I") - Original prototype design; unequal-span wing mainplanes; N-type struts; Napier Lion VIII engine.
• 567 Avenger II - Revised prototype as aerial racer; equal-span wing mainplanes; I-type struts; Napier Lion IX engine.


HISTORY



Detailing the development and operational history of the Avro 566 Avenger Biplane Fighter Prototype Aircraft.  Entry last updated on 5/22/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
Developed along the lines of a private venture fighter for possible sale to the Royal Air Force (RAF), the Avro 566 "Avenger" promised excellent performance through a powerful engine and exceptional streamlining of its shape. The type existed in a biplane form and recorded a first-flight on June 26th, 1926. Its design was attributed to Roy Chadwick, an aeronautical engineer who lent his talents to the creation of the Avro Manchester and Avro Lancaster heavy bombers of World War 2 fame and the Avro Vulcan jet-powered bomber of Cold War fame.

The Avenger exhibited an overall length of 7.7 meters, a wingspan of 9.75 meters, and a height of 3 meters. It sat a single crewman in an open-air cockpit under and behind the upper wing assembly. The mainplanes were of unequal span - the upper section being wider than the lower - and used N-type struts creating a single-bay wing arrangement. The wheeled undercarriage was fixed during flight and the overall design approach of the aircraft was very consistent with the post-World War 1 period (known as the "Interwar period"). Construction was largely of wood with fabric skinning and power to the aircraft was through a Napier Lion VIII engine of 525 horsepower driving a two-bladed propeller at the nose. No armament was fitted to the prototype though it can be assumed that 2 x 0.303 machine guns would have been installed, synchronized to fire through the spinning propeller blades.

As completed, the Avenger held a maximum speed of 180 miles per hour and could cruise at 130 miles per hour.

Despite its promise, the Avenger failed to sell itself to RAF authorities (mainly due to the unpopular Lion engine in play) so it was decided to convert the high performance platform to an aerial racer. The wing mainplanes were revised to become equal-span assemblies and I-type struts were fitted for support. Ailerons were added to both upper and lower wing structures. The original engine installation was now superseded by the Napier Lion IX series engine of 553 horsepower and the changes were enough to warrant the new designation of Avro 567 "Avenger II".

Beyond this conversion, the aircraft was destined to never become anything greater - the single example was eventually broken up in 1931 and used as an engineering training tool.




MEDIA









Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

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Relative Maximum Speed Rating
Hi: 200mph
Lo: 100mph
    This entry's maximum listed speed (180mph).

    Graph average of 150 miles-per-hour.
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Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
1
1

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


Altitude Visualization
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Supported Roles
A2A
Interception
UAV
Ground Attack
CAS
Training
ASW
Anti-Ship
AEW
MEDEVAC
EW
Maritime/Navy
SAR
Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue