Sikorsky S-61 H-3

S-61T Triton


  • Sikorsky S-61T Triton
  • Sikorsky S-61T Triton

Sikorsky is refurbishing older S-61 aircraft for the US State Department. The new S-61T Triton program includes the upgrade and installation of composite main rotor blades, state-of-the-art glass cockpit, modular wiring harness, and modern survivability and force protection. According to the company, these enhancements result in an aircraft with improved safety, 15 percent greater performance, and a lower operating cost. Sikorsky is performing structural upgrades in its Troy, AL facility before sending the airframes to Carson Helicopter in Perhaskie, PA for fitting of dynamic components and interiors. The US Department of State has stated a need for up to 110 aircraft.
As of March 2018, State Department has only confirmed 14 airframes with 13 deliveries completed. Program future uncertain

Model News

Modernized S-61T first flight, 06-Jan-14 : The modernized S-61T helicopter with an integrated glass cockpit and enhanced performance capabilities performed successful maiden test flight

Cobham Avionics for the S-61T, 19-Feb-13 : Shelton, Connecticut - Sikorsky Aerospace Services (SAS) today announced plans to equip Sikorsky’s modernized S-61T helicopter with a suite of advanced avionics provided by S-TEC Corporation/Cobham Commercial Systems (Cobham) of Mineral Wells, Texas.

US State Dept Orders S-61T for Use in Afghanistan, 21-Feb-10 : U.S. State Department has entered into agreement to purchase up to 110 modernized S-61 in support of its worldwide operations

List of Operators of Sikorsky S-61T Triton

From Organisation with model S-61T Triton
usa Carson Helicopters
    S-61 H-3 1973/   
usa Croman Corp
    S-61 H-3 1980/   
usa US Department of State
    S-61 H-3 2010/   

usa EP Aviation
    S-61 H-3

Construction Numbers

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61-041 US 148969 : hss-2 US Navy; Aug91 SH-3H type HC-1 /UP-764
USN; conv SH-3H; 1994 AMARC
US N969WL : State Dept from Dec10, S-61T type
61-055 US 148983 : hss-2 USN; conv SH-3H; 1994 AMARC
US N983WW : State Dept from Dec10, conv to S-61T; See also N705WW
61-062 US 148988 : hss-2 USN; conv SH-3H; Feb94 as /611 USS Independence (CV-62)+
US N434LF : State Dept from May11
US N988AW : State Dept, S-61T type
61-121 US 149705 : hss-2 USN; conv SH-3H; 1994 AMARC/9H0083
US N705WW : State Dept from Sep10, conv to S-61T; Oct14 pictured no+
US N705WW : canc 13mar17, fate unk
61-167 US 149898 : hss-2 USN; conv SH-3H; Sep.1980 as /AJ-731 HS-9 on USS Nimitz+
sh-3h 1989 SH-3H type HS-1 ./AR-447
US N898WC : State Dept from Dec10
State Dept from Dec10; Dec13 f/f as a S-61T
61-186 1963 US 149916 : hss-2 USN; conv HH-3A CSAR variant
US N3173U : Carson from Nov10; pictured (top) after conversion to S+
US N3173U : Siller from May11
US N3173U : 18aug14 pictured (bot) with County of Los Angeles, Depa+
61-222 1964 US N307Y : S-61N Sikorsky S-61N-3; New York Airways, Sikorsky serial N30+
US N307Y : SFO Airlines 196?-1971; San Francisco Oakland Airlines
UK G-BEIC : BIH Dec76-Jan93
UK G-BEIC : Brintel leasing Jan93-May94; Brintel Helicopters May94-+
UK G-BEIC : CHC Scotia Aug00-Nov01
CA C-GROV : CHC Nov01-Jan02
VE YV-1033C : Venezuela, Feb02-Aug03
CA C-GROV : CHC Sep/Dec 2003, again Feb04-Jan06
CA C-GBSF : Executive Transport Airways Ltd Jan06-Jun08; Helijet in+
CA C-GBSF : Coulson Apr10-May12
US N804AR : EP Aviation 29may12 (or N840AR?), conv to S-61T ?
2013 Afghanistan
61-308 US 152115 : sh-3a USN; conv SH-3H; 14may92 as /613 HS-3 pictured on USS S+
US N434QL : State Dept from Aug11
US N115WK : Conversion to S-61T. Department of State Property
61-361 1966 NO LN-ORH : S-61N Helikopter Service, to EC-115
ES EC-FMZ : SASEMAR, pictured (pic1)
US N408FS : Carson Apr/Jun 2010, N611HU ntu; conv to S-61T Triton
US N408FS : EP Aviation from Jun10
Oct13 at FOB Shank, Afghanistan
18may16 picture (pic2) at FOB Dahlke, Afghanistan
61-476 1970 UK G-AYOY : s61n.mk2 BCH Jun84-Jul85
UK G-AYOY : BIH Jul85-Jan93; 05nov90 during an inspection starboar+
UK G-AYOY : Brintel Jan93-Sep00
UK G-AYOY : CHC Scotia Sep00-Nov02
UK G-AYOY : Veritair Nov02-May04
UK G-AYOY : BIH May04-Sep11
US N457ES : Carson from Oct11
US N476AW : US State Dept
61-703 1972 UK G-BAKC : S-61N Bristow Dec72-Apr87, to France as unk
US N9119S : Croman ?-1997
CA C-FHCH : D.K. Heli-Cropper at Mt Lehman BC, Mar-Nov 1997
US N9119S : Croman canc Dec10
CA C-GJQE : Coulson 2011
US N9119S : Croman again Jun11-Apr15
US N9119S : Oct13 with EP Aviation in Afghanistan
US N807AR : EP Aviation from 08apr15
15jun15 at Kingsland, GA
61-757 1976 NO LN-OQH : s61n.mk2 S-61N-60 d/d Helikopter Services 27oct76
BR PT-YCF : Aeroleo Nov96-Jun05
US N461AL : Air Logistics Jun06-Sep06
CA C-FNCH : VIH Jun06-Oct06
CA C-FNCH : Cougar Oct06-Apr12
US N802AR : EP Aviation from 12apr12, S-61T type?
20nov13 at Ghazni, Afghanistan
61-761 1977 US N611EH : S-61N S-61N-63 d/d ERA 16feb77
AU VH-IMQ : Okanagan Helicopters Australia, noted Apr80, ex VH-PTF
CA C-GPOH : Okanagan, noted Aug81
IE EI-BLY : Irish Helicopters 1986
1994 Apeared in the film War of the Buttons, filmed in +
UK G-BXSN : Bristow Feb98-Feb01
US N161AL : Air Logistics Mar01
BR PR-MDS : Brazil, Apr03-Jan05, to N761N
CA C-FHCH : VIH Helicopters Dec05-Sep06, ex N761N
CA C-FHCH : Cougar Sep06-Apr12
US N803AR : EP Aviation from 24apr12, conv S-61T?
61-824 1980 UK G-BHOF : s61n.mk2 Bristow Feb80-Apr94, to LN-ONK
Bristow Jun95-Jul99
NO LN-ONK : May94-May95
UK G-LAWS : Laws Helicopters Ltd Jul99-Nov04
UK G-DAWS : Air Harrods Nov04-May06
UK G-VIPZ : BIH May06-Jun09
Dec08 flew on this to Tresco Island, Isles of Scilly. A+
UK G-VIPZ : Heli Med Ltd Jun09-Jun10
US N824WA : US State Dept Jan11-Sep16, also as N408SC
US N627CK : Croman Corp from Sep16; training at Yuma by Dec16
14 C/N.

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