Grumman S-2 Tracker - Variants

Variants

XS2F-1

Two prototype anti-submarine warfare aircraft powered by 1,450 hp R-1820-76WA engines.

YS2F-1

Designation of the first 15 production aircraft used for development, redesignated YS-2A in 1962.

S2F-1

Initial production variant with two 1,525 hp R-1820-82WA engines, re-designated S-2A in 1962, 740 built.

S2F-1T

Trainer conversion of S2F-1, redesignated TS-2A in 1962.

S2F-1U

Utility conversion of S2F-1, redesignated US-2A in 1962.

S2F-1S

S2F-1 conversion with Julie/Jezebel detection equipment, redesignated S-2B in 1962. Survivors converted to US-2B after removal of ASW gear.

S2F-1S1

S2F-1S fitted with updated Julie/Jezebel equipment, redesignated S-2F in 1962.

S2F-2

As S2F-1 with asymmetrical (port-side) extension of bomb bay, slightly enlarged tail surfaces, 77 built, most redesignated S-2C in 1962.

S2F-2P

Photo reconnaissance conversion of S2F-2, redesignated RS-2C in 1962.

S2F-2U

Utility conversion of S2F-2/S-2C, redesignated US-2C in 1962. Some were used as target tugs.

S2F-3

Enlarged forward fuselage, enlarged tail surfaces, additional fuel capacity, and enlarged engine nacelles bays for 32 sonobouoys, redesignated S-2D in 1962, 100 built.

S2F-3S

As S2F-3 but with Julie/Jezebel equipment, redesignated S-2E in 1962, 252 built.

YS-2A

YS2F-1 redesignated in 1962.

S-2A

S2F-1 redesignated in 1962.

TS-2A

S2F-1T training version redesignated in 1962 and 207 conversion from S-2A.

US-2A

S-2A converted as light transports/target tugs, 51 conversions.

S-2B

S2F-1S redesignated in 1962.

US-2B

Utility and target tug conversions of S-2A and S-2B; most S-2Bs were converted and 66 S-2As.

S-2C

S2F-2 redesignated in 1962.

RS-2C

S2F-2P photo-reconnaissance version redesignated in 1962.

US-2C

S2F-2U utility version redesignated in 1962.

S-2D

S2F-3 redesignated in 1962.

YAS-2D/AS-2D

Proposed self-contained night attack aircraft to be developed under Operation Shed Light; none produced.

ES-2D

Electronic trainer conversion of the S-2D.

US-2S

Utility conversion of the S-2D.

S-2E

S2F-3S redesignated in 1962.

S-2F

S2F-1S1 redesignated in 1962.

US-2F

Transport conversion of S-2F.

S-2G

S-2E conversions with updated electronics (primarily AN/AQA-7 DIFAR sonobuoy processor and AN/ARR-75 sonobuoy receiver)

CS2F-1

Initial production run of anti-submarine warfare aircraft for Canada based on S2F-1. A total of 42 built by De Havilland Canada.

CS2F-2

Improved version of CS2F-1 with Litton Industries tactical navigation equipment. A total of 57 were built by De Havilland Canada.

CS2F-3

New designation given to 43 CS2F-2 aircraft upgraded with additional electronics.

CP-121

New designation given to all CS2F-1, -2, and -3 aircraft following unification of Canadian military in 1968.

Military S-2T Turbo Tracker For Argentina

6 upgraded S-2E turboprop engines conversion by IAI in 1990s for the Argentine Navy.

Military S-2T Turbo Tracker For Taiwan

27 out of 32 upgraded S-2E and S-2G turboprop engines conversion by Northrop Grumman in 1990s for then Taiwan/ROC Air Force, now operates by Taiwan/ROC Navy aviation.

S-2T Turbo Tracker

Civil conversion

S-2AT

Civil firefighter conversion.

S-2ET

Civil conversion.

Marsh S-2F3AT Turbo Tracker

Turboprop conversion, powered by two Garrett TPE331 engines; A total of 22 are operated by the CDF.

Conair Firecat or Turbo Firecat

Civil conversion as a single-seat firefighting aircraft.

• For the crew trainer/transport version based on the Tracker refer to Grumman C-1 Trader
• For the Airborne Early Warning version based on the Trader refer to Grumman E-1 Tracer