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Vought OS2U Kingfisher


Shipborne Reconnaissance / Scout Floatplane (1940)


Aviation / Aerospace

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Image from the Public Domain.

Jump-to: Specifications

Though an American product, the Vought OS2U Kingfisher series served in quantity with the ranks of the British Fleet Air Arm.



Authored By: Staff Writer | Last Edited: 02/21/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
The OS2U Kingfisher was a product of the Vought aircraft firm, appearing initially as the VS.310 design to which the United States Navy accepted as a prototype in the XOS2U-1. The prototype would be airborne for trials by 1938 and fitted with the Pratt & Whitney R-985-4 Wasp Junior radial piston engine of 450 horsepower. After passing trials with the US Navy, the system was given the green light for full production and operational status as the OS2U "Kingfisher" series, serving as catapult launched floatplanes capable of adapting to landing on airstrips as well with some modification to the landing system.

The Kingfisher series was powered by a single engine mounted at the fuselage front. The crew of two sat in separate cockpit areas with the pilot in front, just behind the engine and the rear gunner/observer in a mid-mounted cockpit position. The aircraft was made highly identifiable by the large centerline float pontoon running nearly the length of the fuselage and extended forward of the propeller. Two additional yet smaller stabilizing floats were mounted under each wing of the low-monoplane design. Additionally, the system could be adapted to land on shore bases thanks to the interchangeable landing gear / float system.
Armament consisted of light self-defensive measures and was made up of a single forward firing fixed 7.62mm machine gun and a rear-mounted 7.62mm machine gun. The system was capable of carrying up to 650 pounds of external stores and was known to undertake a few dive bombing sorties in its time aloft. In all, the Kingfisher system served the Fleet Air Arm (as the Kingfisher Mk I series), US Navy and the Inshore Patrol Squadrons quite faithfully during its wartime tenure. A fourth variant of the Kingfisher in the form of the OS2U-4 was proposed but never evolved.

Specifications



Service Year
1940

Origin
United States national flag graphic
United States

Status
RETIRED
Not in Service.
Crew
2

Production
1,300
UNITS


Vought - USA
National flag of Australia National flag of Chile National flag of Cuba National flag of the Dominican Republic National flag of Mexico National flag of the Netherlands National flag of the Soviet Union National flag of the United Kingdom National flag of the United States National flag of Uruguay Australia; Chile; Cuba; Dominican Republic; Mexico; Netherlands; Soviet Union; United Kingdom; United States; Uruguay
(OPERATORS list includes past, present, and future operators when applicable)
Maritime / Navy
Land-based or shipborne capability for operating over-water in various maritime-related roles while supported by allied naval surface elements.
Intelligence-Surveillance-Reconnaissance (ISR), Scout
Surveil ground targets / target areas to assess environmental threat levels, enemy strength, or enemy movement.


Length
33.6 ft
(10.24 m)
Width/Span
35.9 ft
(10.95 m)
Height
15.1 ft
(4.60 m)
Empty Wgt
4,123 lb
(1,870 kg)
MTOW
6,001 lb
(2,722 kg)
Wgt Diff
+1,878 lb
(+852 kg)
(Showcased structural values pertain to the Vought OS2U-3 Kingfisher production variant)
Installed: 1 x Pratt & Whitney R-985-AN-2 or R-985-AN-8 air-cooled engine developing 450 horsepower.
Max Speed
164 mph
(264 kph | 143 kts)
Ceiling
12,992 ft
(3,960 m | 2 mi)
Range
1,150 mi
(1,851 km | 3,428 nm)
Rate-of-Climb
416 ft/min
(127 m/min)


♦ 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


(Showcased performance specifications pertain to the Vought OS2U-3 Kingfisher production variant. Compare this aircraft entry against any other in our database. View aircraft by powerplant type)
STANDARD:
1 x 7.62mm machine gun in forward fixed firing position
1 x 7.62mm machine gun in rear cockpit position

OPTIONAL:
Maximum bomb load of up to 650lbs (including depth charges).


Supported Types


Graphical image of an aircraft medium machine gun
Graphical image of an aircraft conventional drop bomb munition
Graphical image of a naval depth charge


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 2


XOS2U-1 - Prototype Model Designation; fitted with Pratt & Whitney R-985-4 Wasp Junior radial piston engine at 450hp.
OS2U-1 - Initial Production Model Designation; fitted with R-985-48 engine; 54 examples produced.
OS2U-2 - Fitted with R-985-50 engine; 158 examples produced.
OS2U-3 - Production Variant appearing in quantity; fitted with R-985-An02 engine; increased fuel capacity and operational range; improved armor protection for crew cabin; 1,006 examples produced; self-sealing fuel tanks; provision for 2 x depth charges.
OS2U-4 - Proposed Improved Model with revised tailplane, wings, flaps and more powerful engine; never produced.
OS2N-1 - Based on the OS2U but production undertaken with the Naval Aircraft Factory.
Kingfisher Mk I - British Fleet Air Arm Designation for the OS2U-3 model series selected by 1941; seen in trainer and catapult launched scout forms.


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