S-2 Tracker

The Grumman OV-1 Mohawk is an armed military observation and attack aircraft that was designed for battlefield surveillance and light strike capabilities. It has a twin turboprop configuration, and carries two crew members in side-by-side seating. The Mohawk was intended to operate from short, unimproved runways in support of United States Army maneuver forces.

Grumman: S-2 Tracker

Role ASW aircraft
National origin United States
Manufacturer Grumman
First flight 4 December 1952
Introduction February 1954
Status Active service in Argentine Naval Aviation
Primary users United States Navy 
Royal Canadian Navy 
Royal Australian Navy 
Argentine Navy
Number built 1,284
Variants Conair Firecat
Developed into Grumman C-1 Trader
Grumman E-1 Tracer


S-2 Tracker

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S-2 Tracker

The Grumman S-2 Tracker (S2F prior to 1962) was the first purpose-built, single airframe anti-submarine warfare (ASW) aircraft to enter service with the United States Navy. Designed and initially built by Grumman, the Tracker was of conventional design — propeller-driven with twin radial engines, a high wing that could be folded for storage on aircraft carriers, and tricycle undercarriage. The type was exported to a number of navies around the world. Introduced in 1952, the Tracker and its E-1 Tracer derivative saw service in the U.S. Navy until the mid-1970s, and its C-1 Trader derivative until the mid-1980s, with a few aircraft remaining in service with other air arms into the 21st century. Argentina and Brazil are the last countries to still use the Tracker.


The Tracker was intended as a replacement for the Grumman AF Guardian, which was the first purpose-built aircraft system for ASW, using two airframes for two versions, one with the detection gear, and the other with the weapon systems. The Tracker combined both functions in one aircraft. Grumman’s design (model G-89) was for a large high-wing monoplane with twin Wright Cyclone R-1820 nine cylinder radial engines, a yoke type arrestor hook and a crew of four. Both the two XS2F-1 prototypes and 15 S2F-1 production aircraft were ordered at the same time, on 30 June 1950. The first flight was conducted on 4 December 1952, and production aircraft entered service with VS-26, in February 1954.


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Grumman SF-2 Tracker (1952)

The Netherlands Naval Aviation Service (Marineluchtvaartdienst – MLD), the air arm of the Royal Netherlands Navy, received 28[27] S-2A (S2F-1) aircraft under MDAP from the US Navy in 1960. An additional 17[28] Canadian-built CS-2A (CS2F-1) aircraft formerly operated by the Royal Canadian Navy were delivered between December 1960 and September 1961 after being overhauled by Fairey Canada. These aircraft were operated from Valkenburg Naval Air Base as well as from the light aircraft carrier Karel Doorman until a fire in 1968 took that ship out of Dutch service.[


Crew: 4

Length: 43 ft 6 in (13.26 m)

Wingspan: 72 ft 7 in (22.12 m)

Height: 17 ft 6 in (5.33 m)

Empty weight: 18,315 lb (8,308 kg)

Gross weight: 23,435 lb (10,630 kg)

Max takeoff weight: 26,147 lb (11,860 kg)

Powerplant: 2 × Wright R-1820-82WA 9-cylinder air-cooled radial piston engines, 1,525 hp (1,137 kW) each

Maximum speed: 243 kn (280 mph, 450 km/h) at sea level

Cruise speed: 130 kn (150 mph, 240 km/h)

Range: 1,173 nmi (1,350 mi, 2,172 km)

Endurance: 9 hours endurance

Service ceiling: 22,000 ft (6,700 m)

Related development

Grumman C-1 Trader

Grumman E-1 Tracer

Aircraft of comparable role, configuration, and era

Grumman AF Guardian

Fairey Gannet

Breguet Alizé

Lockheed S-3 Viking

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Seven U.S. Navy squadrons flew the F11F-1: VF-21 and VF-33 in the Atlantic Fleet and VA-156 (redesignated VF-111 in January 1959), VF-24 (redesignated VF-211 in March 1959), VF-51, VF-121, and VF-191 in the Pacific Fleet.

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