Aircraft / Aviation Vehicles & Artillery Small Arms Warships & Submarines Military Ranks Military Pay Scale (2024) Special Forces

Austin A.F.T.3 (Osprey)

Triplane Fighter Aircraft Prototype

United Kingdom | 1918

"The Austin Motor Company of Britain tried its hand at an in-house triplane fighter design as the Osprey - it lost to the Sopwith Snipe in competition."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Austin A.F.T.3 Triplane Fighter Aircraft Prototype.
1 x Bentley BR.2 rotary engine developing 230 horsepower and driving two-bladed propeller at the nose.
118 mph
190 kph | 103 kts
Max Speed
19,029 ft
5,800 m | 4 miles
Service Ceiling
354 miles
570 km | 308 nm
Operational Range
980 ft/min
299 m/min
The nose-to-tail, wingtip-to-wingtip physical qualities of the Austin A.F.T.3 Triplane Fighter Aircraft Prototype.
17.6 ft
5.35 m
O/A Length
23.0 ft
(7.00 m)
O/A Width
10.7 ft
(3.25 m)
O/A Height
1,102 lb
(500 kg)
Empty Weight
1,896 lb
(860 kg)
Available supported armament and special-mission equipment featured in the design of the Austin A.F.T.3 (Osprey) Triplane Fighter Aircraft Prototype .
2 x .303 Vickers machine guns in fixed, forward-firing positions over the nose and synchronized to fire through the spinning propeller blades.

1 x .303 Lewis Gun in central wing assembly on trainable mounting.
Notable series variants as part of the Austin A.F.T.3 (Osprey) family line.
A.F.T.3 "Osprey" - Base Series Designation; single prototype completed.

Authored By: Staff Writer | Last Edited: 07/03/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Heading into 1918 during World War 1, there was already work being done to find a viable successor to the classic Sopwith Camel biplane fighter. The Camel appeared in June of 1917 and, by wartime standards, it lived a healthily long service life amidst changing technologies and tactics concerning the air war. The Austin Osprey, a single-seat triplane fighter - was developed with the hopes that it could follow the veteran design but it eventually lost out to the Sopwith Snipe - of which nearly 500 were produced from 1918 onward. For the Osprey, only a single prototype was ever made by the Austin Motor Company and the design quickly forgotten.

The original requirement was made by British authorities in 1917 (Specification A.1.A) calling for a single-seat, twin-gunned mount to succeed the venerable Camel. At this point in the war, the Austen Motor Company, like other concerns in British industry, were already helping in the war effort by producing other company's aircraft designs to meet demand. When the specification came down, Austen decided to try its hand in the design and development of a suitable fighter. The result was the A.F.T.3 "Osprey" of which three prototypes were ordered. Interestingly, engineers elected for a triple-wing arrangement over the standard two wings common to many fighters of the period.

On the whole, the Osprey utilized proven construction internally and out as well as traditional design techniques which did little to set it apart from the competition. Dimensions included a length of 17.6 feet, a wingspan of 23 feet and a height of 18.7 feet. Empty weight was 500 kilograms to a loaded weight of 860 kilograms. Power was served from a Bentley BR2 series rotary engine of 230 horsepower fitted to the nose and driving a two-bladed wooden propeller. Performance specs included a maximum speed of 119 miles per hour, a service ceiling of 19,000 feet and endurance up to three hours in the air. The triple-wing arrangement was all equal-span with a forward cant and parallel strut works.

Armament was the usual pairing of 2 x .303 Vickers machine guns in fixed, forward firing positions over the nose and synchronized to fire through the spinning propeller blades. Another interesting quality of the Osprey was the placement of a third machine gun, this being a Lewis Gun, set upon the center section of the middle wing assembly. Additionally this installation was trainable to an extent but its flexibility added little.

A first-flight of a prototype Osprey was had during February of 1918 as the war raged and testing followed into the coming weeks. As it stood, the Osprey simply could not compete, performance-wise, with the speedy, two-winged Snipe (fitting the same engine). Its three-winged arrangement created drag despite offering increased agility, this during a time when speed for fighter aircraft was the rule of the day. As such, the Osprey never advanced beyond the prototype stage and its two remaining prototypes were never built.

Content ©MilitaryFactory.com; No Reproduction Permitted.
Global customers who have evaluated and/or operated the Austin A.F.T.3 (Osprey). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units

Contractor(s): Austin Motor Company - United Kingdom
National flag of the United Kingdom

[ United Kingdom (cancelled) ]
1 / 1
Image of the Austin A.F.T.3 (Osprey)
Image from the Public Domain.

Going Further...
The Austin A.F.T.3 (Osprey) Triplane Fighter Aircraft Prototype appears in the following collections:
Disclaimer | Privacy Policy | Cookies

2024 Military Pay Scale Military Ranks of the World U.S. Department of Defense Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols Breakdown U.S. 5-Star Generals List WWII Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing military medals and ribbons. Special Interest: RailRoad Junction, the locomotive encyclopedia.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)