Sikorsky S-61R - Misplaced Pages

(Redirected from CH-3) Helicopter used in transport or search and rescue

S-61R/CH-3C/E HH-3E Jolly Green Giant HH-3F "Pelican"
US Coast Guard HH-3F "Pelican" from Coast Guard Air Station San Francisco
General information
Type	Medium-lift transport/Search and Rescue (SAR) helicopter
Manufacturer	Sikorsky Agusta
Status	In service
Primary users	United States Air Force (Historical) United States Coast Guard (Historical) Italian Air Force (Historical) Tunisian Air Force
History
Manufactured	1959–1970s
Introduction date	1961
First flight	1959
Developed from	Sikorsky SH-3 Sea King

The Sikorsky S-61R is a twin-engine helicopter used in transport or search and rescue roles. A developed version of the S-61/SH-3 Sea King, the S-61R was also built under license by Agusta as the AS-61R. The S-61R served in the United States Air Force as the CH-3C/E Sea King and the HH-3E Jolly Green Giant, and with the United States Coast Guard as the HH-3F, nicknamed "Pelican". This article covers several different variants of this type in different roles, one major difference compared to the S-61 was a rear ramp.

Development

The Sikorsky S-61R was developed as a derivative of their S-61/SH-3 Sea King model. It features a substantially revised fuselage with a rear loading ramp, a conventional, though watertight, hull instead of the S-61's boat-hull, and retractable tricycle landing gear. The fuselage layout was used by Sikorsky for the larger CH-53 variants, and by the much later (though similarly sized) S-92.

In 1957, Sikorsky engineers were working on a new model for the United States Navy to replace the HUS-1s, used for anti-submarine warfare. Designated the HSS-2 (Helicopter, anti-Submarine, Sikorsky) under the old designation system, this helicopter would enter service as the SH-3 Sea King under the new tri-service designation system. On 9 January 1958, General Randolph M. Pate, Commandant of the Marine Corps, wrote to the Chief of Naval Operations (CNO) requesting procurement of modified HSS-2s to replace the Marines' HUS-1 helicopters. General Pate recommended that the transport version be designated the HR3S (Helicopter, Transport-3-Sikorsky). Funds for aircraft procurement were short in 1958 and progress on the design of the HR3S was slow. Detailed specifications for the new helicopter were published by CNO on 7 March 1960. Four items were specified:

a rear loading ramp
fuselage capable of landing in water
ready for operational evaluation by 1963
a modification of a helicopter that had already been developed

While the design of the assault transport version was in final review, the HSS-2 was being tested. Problems were encountered with its stability and the main transmission was limited to 2,000 horsepower, even though at peak power the engines could produce more. In July 1959, before the selection of the HR3S, Vertol Aircraft Corporation had given presentations to the Marines of their new model, the 107A, and in late March 1960, with Sikorsky engineers still wrestling with problems in the HSS-2 and designing a ramp for the HR3S, Vertol dispatched a YHC-1A (an early prototype of the 107) to the Landing Force Development Center at Marine Corps Base Quantico, for assessment by six Marine pilots. The Marine assessment endorsed the acquisition of the Vertol 107M. On 20 February 1962, the Marines selected the Vertol 107M as the winner of the HRX competition, and it entered Marine service as the CH-46 Sea Knight.

A USAF HH-3E Jolly Green Giant helicopter flies over Canada.

Notwithstanding the loss of the HRX competition, Sikorsky built an S-61R prototype as a private venture, with its first flight in 1963. During its development, the US Air Force placed an order for the aircraft, which was designated CH-3C using the new system. The Air Force used the CH-3C to recover downed pilots. The CH-3E variant with more powerful engines would follow in 1965.

The improved HH-3E variant would follow later, with eight built, and with all 50 CH-3Es converted to this standard. Known as the Jolly Green Giant (because of its size and olive green color scheme; alluding to the Jolly Green Giant company mascot), the HH-3E featured protective armor, self-sealing tanks, a retractable inflight refueling probe, jettisonable external tanks, a high-speed hoist, and other specialized equipment.

In 1965, the U.S. Coast Guard ordered a version designated HH-3F Sea King (more commonly known by its nickname "Pelican") for all-weather air-sea rescue. The Pelican featured search radar with a nose antenna radome offset to port, and water landing capability.

Italian Agusta built a S-61R variant under license, named AS-61R. Agusta produced 22 helicopters for the Italian Air Force. The company claimed it could re-open the production line in 36 months to build additional AS-61 helicopters.

Operational service

United States

USAF variants served in numerous air rescue squadrons and aerospace rescue and recovery squadrons of the Military Airlift Command (MAC), rescue squadrons of the Air Combat Command (ACC) and other USAF major commands worldwide. The aircraft was also used by a number of Air Force Reserve Command and Air National Guard rescue squadrons. All USAF HH-3Es, to include Air Force Reserve and Air National Guard, were retired in the 1990s and replaced by the current HH-60G Pavehawk.

The HH-3F Pelican was a dependable workhorse for the US Coast Guard from the late 1960s until it was phased out in the late 1990s. All USCG HH-3Fs were replaced by the HH-60J Jayhawk and those aircraft have since been upgraded to the MH-60T Jayhawk version.

Transatlantic flight

Between 31 May and 1 June 1967, two HH-3Es of the United States Air Force made the first nonstop flight across the Atlantic Ocean by helicopter. Departing from New York in the early hours, the two helicopters arrived at the 1967 Paris Air Show at Le Bourget after a 30 hr 46 min flight. The operation needed nine in-flight refuelings. Both helicopters were later lost in combat operations in Southeast Asia in 1969 and 1970.

Italy

Agusta began production in 1974 and delivered 22 helicopters as replacements for the Grumman HU-16 Albatross used for SAR (Search and Rescue) missions at sea. Italian Air Force AS-61R helicopters performed SAR missions under designation HH-3F in time of peace and C/SAR (Combat SAR) in time of crisis or during military assignment. All helicopters were operated by the five flights of the 15° Stormo Stefano Cagna and deployed in four bases across Italy.

From 1993 15° Stormo performed support missions to evacuate civilians during natural catastrophes and disasters in Italy. 15º Stormo was also engaged with SAR missions in the hostile zones of the several operations abroad where Italian Armed Forces were deployed - Somalia, Albania, Bosnia, Kosovo, Iraq and Afghanistan.

The Italian Air Force phased out the HH-3F on 26 September 2014, replacing them with the AgustaWestland AW139 in the SAR role

Variants

S-61R: Military transport helicopter, Sikorsky model number.
HR3S-1: Proposed transport helicopter for U.S. Marine Corps, cancelled
S-61R-10: Prototype operated by Sikorsky and first flown 17 June 1963.
S-61R-12

One aircraft for the Argentine Air Force to HH-3F standards.
CH-3C: Long-range military transport helicopter for the US Air Force, 75 built.
CH-3E: Long-range military transport helicopter for the US Air Force. 41 converted from CH-3C, plus 45 newly manufactured.
HH-3E Jolly Green Giant: Long-range search and rescue helicopter for the US Air Force, 50 converted from CH-3E.
MH-3E: Special Operations version for the US Air Force.
VH-3E: US Air Force VIP transport helicopter.
HH-3F "Pelican": Long-range search and rescue helicopter for the US Coast Guard, 40 built.
AS-61R (HH-3F Pelican): Long-range search and rescue helicopter built since 1974 under license in Italy by Agusta, 22 built.

Operators

Aircraft on display

Argentina

H-02 – S-61R on static display at the Museo Nacional de Aeronáutica in Morón, Buenos Aires. It was formerly used as a presidential helicopter.

United States

44010 – CH-3C in storage at Yanks Air Museum in Chino, California.
62-12581 – CH-3C on static display at the Air Force Flight Test Center Museum at Edwards Air Force Base near Rosamond, California.
63-9676 – CH-3E in storage at the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Dayton, Ohio.
65-5690 – CH-3E on static display at the Aerospace Museum of California at Sacramento McClellan Airport (former McClellan AFB) in Sacramento, California.
64-14232 – H-3E on static display at Kirtland Air Force Base in Albuquerque, New Mexico.
65-12784 – HH-3E on static display at the Air Park at Hurlburt Field in Mary Esther, Florida.
65-12797 – CH-3E on static display at the Carolinas Aviation Museum in Charlotte, North Carolina.
66-13290 – HH-3E on static display at Francis S. Gabreski Air National Guard Base in Westhampton, New York. It is the aircraft in which Leland T. Kennedy earned the first of his two Air Force Crosses.
67-14703 – HH-3E on static display at the Museum of Aviation at Robins Air Force Base in Warner Robins, Georgia.
67-14709 – HH-3E on static display at the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Dayton, Ohio.
USCG 1476 – HH-3F on static display at the Pima Air and Space Museum adjacent to Davis-Monthan Air Force Base in Tucson, Arizona.
USCG 1484 – HH-3F on static display at Winvian Farm in Morris, Connecticut. It is incorporated into a guest bedroom.
USCG 1486 – HH-3F on static display at the National Naval Aviation Museum at Naval Air Station Pensacola in Pensacola, Florida.

Specifications (HH-3E)

Data from Evergreen, Globalsecurity

General characteristics

Crew: 3
Capacity: 28 pax / 6,500 lb (2,948 kg) payload
Length: 73 ft (22 m)
Height: 18 ft 1 in (5.51 m)
Empty weight: 13,341 lb (6,051 kg)
Max takeoff weight: 22,050 lb (10,002 kg)
Fuel capacity: 683 US gal (569 imp gal; 2,590 L)
Powerplant: 2 × General Electric T58-GE-10 turboshaft engines, 1,400 shp (1,000 kW) each
Main rotor diameter: 62 ft (19 m)
Main rotor area: 3,019 sq ft (280.5 m) 5-bladed main rotor; blade section NACA 0012

Performance

Maximum speed: 143 kn (165 mph, 265 km/h)
Range: 779 nmi (896 mi, 1,443 km)
Service ceiling: 21,000 ft (6,400 m) IGE

17,500 ft (5,334 m) OGE

Rate of climb: 2,220 ft/min (11.3 m/s) IGE

1,300 ft/min (396 m/min) OGE

Disk loading: 7.3 lb/sq ft (36 kg/m)

Armament

Guns: Door guns on some variants (For information on American equipment, see U.S. Helicopter Armament Subsystems, S-61R)

References

^ United States Department of Defense. DOD 4120.15-L Model Designation of Military Aircraft, Rockets, and Guided Missiles. Washington, DC: Department of Defense, 1974. p. A-40; 1998. p. A-43; 2004. p. 43.
^ Fails, William (1978). Marines and Helicopters 1962-1973 (PDF). History and Museums Division United States Marine Corps. ISBN 978-1482313598. Archived from the original (PDF) on 20 August 2019. Retrieved 5 December 2019. This article incorporates text from this source, which is in the public domain.
^ Apostolo, Giorgio. "Sikorsky S-61R". The Illustrated Encyclopedia of Helicopters. New York: Bonanza Books. 1984. ISBN 978-0-517-43935-7.
"Sikorsky HH-3E Jolly Green Giant". National Museum of the United States Air Force. 13 June 2016.
^ Chant, Christopher (1996). Fighting Helicopters of the 20th Century. Twickenham, UK: Tiger Books International PLC. ISBN 1-85501-808-X.
Donald, David, ed. "Sikorsky S-61". The Complete Encyclopedia of World Aircraft. Barnes & Noble Books, 1997. ISBN 0-7607-0592-5.
^ "HH-3E". USAF ROTORHEADS. Retrieved 24 October 2009.
^ "Paris Week". Flight International: 933–934. 5 June 1967.
^ "Il portale dell'Aeronautica Militare - Cerimonia di phase-out dell'HH-3F". Retrieved 3 October 2014.
^ "Sikorsky CH-3E". National Museum of the US Air Force. 24 September 2015. Retrieved 21 June 2017.
^ "Sikorsky HH-3E Jolly Green Giant."National Museum of the US Air Force. Retrieved: 21 June 2017.
"A 21st Century S-61" (PDF). Verticalmag.com. Archived from the original (PDF) on 21 November 2016. Retrieved 17 March 2013.
"Ericson fleet". ericksonaviation.com. Archived from the original on 21 May 2015. Retrieved 15 February 2014.
"World Air Forces 2013" (PDF). Flightglobal Insight. 2013. Retrieved 17 March 2013.
"World Air Forces 1981 p. 40". flightglobal.com. Retrieved 17 March 2013.
"S-61 H-3 in Fuerza Aerea Argentina". Helis.com. Retrieved 9 February 2019.
"Italian Air Force retires HH-3F". Air Forces Monthly. Key Publishing: 12. November 2014.
"S.B. Sheriff's Dept. CH-3C C/N 61-523". Helis.com. Retrieved 17 March 2013.
"USAF Sikorsky s-61 H-3". Helis.com. Retrieved 17 March 2013.
"World Air Forces 1981 p. 100". flightglobal.com. Retrieved 17 March 2013.
"HH-3F Pelican Medium Range Recovery (MRR)". globalsecurity.org. Retrieved 17 March 2013.
"Airframe Dossier - Sikorsky S-61R, s/n H-02 FAA, c/n 61.763". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"Sikorsky S-61R (CH-3C)". Yanks Air Museum. 6 February 2017. Archived from the original on 18 June 2021. Retrieved 30 May 2017.
"Airframe Dossier - SikorskyS-61 / H-3 / Sea King, s/n 44010 USN". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"Aircraft Inventory". Flight Test Historical Foundation. Archived from the original on 19 October 2016. Retrieved 30 May 2017.
"Airframe Dossier - Sikorsky CH-3C Sea King, s/n 62-12581 USAF, c/n 61506". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"Sikorsky CH-3E Jolly Green Giant". Aerospace Museum of California. Archived from the original on 17 April 2016. Retrieved 30 May 2017.
"Airframe Dossier - Sikorsky H-3E Jolly Green Giant, s/n 64-14232 USAF". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"H-3 JOLLY GREEN". Hurlburt Field. Archived from the original on 14 July 2014. Retrieved 30 May 2017.
"Airframe Dossier - Sikorsky CH-3E Jolly Green Giant, s/n 65-12797 USAF, c/n 61-572". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"Airframe Dossier - Sikorsky HH-3E Jolly Green Giant, s/n 66-13290 USAF". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
"HH-3E "Jolly Green Giant"". Museum of Aviation. Museum of Aviation Foundation, Inc. Retrieved 30 May 2017.
"PELICAN". Pima Air & Space Museum. Pimaair.org. Archived from the original on 19 July 2017. Retrieved 30 May 2017.
"HELICOPTER". Winvian Farm. Retrieved 30 May 2017.
"Airframe Dossier - SikorskyS-61 / H-3 / Sea King, s/n 1484 USCG". Aerial Visuals. AerialVisuals.ca. Retrieved 10 September 2021.
"Airframe Dossier - SikorskyS-61 / H-3 / Sea King, s/n 1486 USCG, c/n 61-663". Aerial Visuals. AerialVisuals.ca. Retrieved 30 May 2017.
S-61R specifications Archived 3 March 2016 at the Wayback Machine. EvergreenAviation.com
HH-3 specifications. GlobalSecurity.org
Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

External links

Sikorsky HH-3E Jolly Green Giant – National Museum of the United States Air Force
Sikorsky products Archived 19 June 2008 at the Wayback Machine
US Coast Guard history page
CH-3, HH-3 and HH-3F Pelican pages on GlobalSecurity.org
HELIS.com Sikorsky S-61/H-3/HSS-2 Database

Sikorsky S-61 Sea King family

Military
designations

HSS-2
H-3
- CH-3/HH-3E/HH-3F

Model numbers

AS-61
S-61
- S-61L/N
- S-61R

Foreign
production

Westland (UK)	WS-61
United Aircraft of Canada (Canada)	CH-124 Sea King
Augusta (Italy)	AS-61
Mitsubishi (Japan)	HSS-2

Names

Individual aircraft

Helicopter 66

Topics

See also: Sikorsky H-19 family • Sikorsky S-70 family

v t e Sikorsky aircraft
Fixed-wing aircraft (company designations)	S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-9 S-10 S-11 S-12 S-13 S-14 S-15 S-16 S-17 S-18 S-19 S-20 S-21 S-22/23/24/25/26/27 S-28 S-29-A S-30 S-31 S-32 S-33 S-34 S-35 S-36 S-37 S-38 S-39 S-40 S-41 S-42 S-43 VS-44 S-45
Fixed-wing aircraft (military designations)	C-6 C-28 JRS JR2S PS P2S RS XBLR-3 XPBS XSS XV-2
Helicopters (company designations)	VS-300 (S-46) S-47 S-48 S-49 S-50 S-51 S-52 S-53 S-54 S-55 S-56 S-57 S-58 S-59 S-60 S-61 S-61L/N S-61R S-62 S-63 S-64 S-65 S-66 S-67 S-68 S-69 S-70 S-71 S-72 S-73 S-74 S-75 S-76 S-80 S-92 S-95 S-97 S-100 S-102 S-103 S-300 S-333 S-434
Helicopters (military designations)	SH-3 Sea King HH-3E/F R-4 H-5 H-6 H-18 H-19 Chickasaw H-34 Choctaw CH-37 Mojave XH-39 HH-52A Seaguard CH-53 Sea Stallion CH-53E Super Stallion CH-53K King Stallion MH-53 CH-54 Tarhe UH-60 Black Hawk HH-60G Pave Hawk HH-60J/MH-60T MH-60R/S Seahawk SH-60B/F Seahawk H-60J/K VH-60 RAH-66 Comanche VH-92 Patriot CH-124 Sea King CH-148 Cyclone HLH
Experimental aircraft	Cypher/Cypher II Firefly Raider Raider X SB-1 X2 XBLR-3 XV-2

Designation sequences for this aircraft:

USN helicopter designations pre-1962

Helicopter, Anti-submarine

Bell	HSL
Sikorsky	HSS-1 HSS-2

Helicopter, Crane

McDonnell	HCH

Helicopter, Observation

Convertawings	HOC
Hiller	HOE
Gyrodyne	HOG
Kaman	HOK
Sikorsky	HOS HO2S HO3S HO4S HO5S

Helicopter, Trainer pre-1948

Sikorsky	HNS

Helicopter, Trainer 1948-1962

Hiller	HTE
Kaman	HTK
Bell	HTL

Helicopter, Transport 1944-1962

Boeing Vertol	HRB
McDonnell	HRH
Piasecki	HRP
Sikorsky	HRS HR2S HR3S

Helicopter, Utility pre-1949

McDonnell	HJD
McDonnell	HJH
Piasecki	HJP
Sikorsky	HJS

Helicopter, Utility 1950-1962

Kaman	HUK HU2K
Bell	HUL
McCulloch	HUM
Piasecki	HUP
Sikorsky	HUS HU2S

United States helicopter designations, Army/Air Force and Tri-Service systems

Numerical sequence used by USAAC/USAAF/USAF 1941–present; U.S. Army 1948–1956 and 1962–present; U.S. Navy 1962–present

Army/Air Force sequence
(1941–1962)

Prefix R-, 1941–1948	R-1 R-2 R-3 R-4 R-5 R-6 R-7 R-8 R-9 R-10 R-11 R-12 R-13 R-14 R-15 R-16
Prefix H-, 1948–1962	H-5 H-6 H-9 H-10 H-11 H-12 H-13 H-13J H-15 H-16 H-17 H-18 H-19 H-20 H-21 H-22 H-23 H-24 H-25 H-26 H-27 H-28 H-29 H-30 H-31 H-32 H-33 H-34 H-35 H-36 H-37 H-38 H-39 H-40 H-41 H-42 H-43 H-44 H-45

Tri-Service sequence
(1962–present)

1962 redesignations	H-13 H-13F H-13J H-19 H-21 H-23 H-25 H-34 H-37 H-43
New designations	H-46 H-47 H-48 H-49 H-50 H-51 H-52 H-53 CH-53/E/K HH-53/MH-53 H-54 H-55 H-56 H-57 H-58 H-59 H-60 UH-60 SH-60 HH-60 MH-60 H-61 H-62 H-63 H-64 H-65 H-66 H-67 H-68 H-69 H-70 H-71 H-72 H-73
Alternate sequence	H-1 AH-1/J/T/W/Z UH-1/N/Y H-2 G H-3 CH-3/HH-3 SH-3 H-4 H-5 H-6 AH-6 MH-6 OH-6
Non-sequential	H-90 H-92 CH-92/VH-92 H-139

Not assigned

v t e United States Air Force system numbers
100–199	100 101 P 102 103 104 105 106 107 A-1 A-2 108 109 110 111 112 113 114 115 116 117 L M 118 A L P 119 C/F E L T Y 120 121 122 123 124 125 126 127 128 129 130 131 132 A B 133 134 135 136 137 138 139 140 141 142 143–197 198 199 B C D Y
200–299	200 201 A/L B/W E 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 A G 223 224 225 226 227–238 239 240–278 279 280–298 299
300–399	300 301 302 303 304 305 306 A/L B 307 308 309 310 311 312 313 314 315 A-1 A-2 316 317 318 319 320 321 322 323 324 L M/N 325 326 327 E 328 E 329 F 330 331 332 333 334 335 336 337 338–379 380 A/B/E/F/N P 381–397 398 399 A B
400–499	400 B/C/N E G/H M 401 402 403 404 405 B C D 406 407 408 409 410 E L 411 E L 412 413 414 L M 415 416 L M (I) M (II) P Q 417 418 L M 419 420 L/W 421 422 423 424 425 426 L M 427 L M 428 A L 429 430 431 G (I) G (II) 432 433 434 435 A L 436 437 438 439 440 441 A D L 442 443 444 445 L M 446 447 448 449 450 451 D L 452 453 454 455 456 457 458 459 460 L 461 462 463 464 465 466 467 468 469 470 471 L (I) L (II) 472 473 474 L N 475 476 E 477 478 A T 479 480 481 L 482 E L M/Z 483 484 L M N 485 L Z 486 487 488 489 490 L M 491 492 493 494 495 L (I) L (II) 496 497 A L (I) L 498 A C D E L 499 A C D
500–599	500 501–519 520 521–529 530 531–541 542 543–549 550 A E 551–559 560 A F 561–569 570 571–579 580 A E 581–589 590 591 592 593–599
600–699	600 601 A L 602 A L 603 A L 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 A/B (I) B (II) 622 623 624 625 626 627 628 629 630 631 632 633 634 A B 635 636 637 638 639 640 641 642 643 644 645 646 647 648 A D P 649 A B C D E F L P 650 651 652 653 654 655 A (I) A (II) P 656 657 658 659 660 661 662 663 664 665 A (I) A (II) 666 A C/P 667 668 669 670 671 672 A M/P 673 674 675 676 677 678 679 680 681 D E 682 683 A J V 684 685 686 687 J P 688 689 690 691 C X Z 692 693 694 695 A B C L N P Q R S (I) S (II) 696 697 698 699
700–799	700–735 736 737 738 739 740 741 742 743 744 745 746–753 754 755–799
800–899	800 801 802 L (I) L (II) 803 804 805 806 807 808–816 817 818 819 820 821 822 823 824–831 832 833 834 835–845 846 847–899
900–999	900–951 952 853 854 855 956 957–967 968
Unknown or not assigned

v t e Italian Armed Forces aircraft designation system, 2009–present
1–100	Q-1 G-2 H-3D/H-3F G-4 Q-7 AV-8 Q-9 Q-10 A-11 TA-11 Q-11 Q-12 F-16 G-17 G-21 Q-24 Q-25 Q-26 C-27 Q-27 F-35 C-42/P-42 H-47 C-50 P-72 H-90
101–200	H-101 G-103 H-109 H-129 C-130 H-139 U-166 H-169 C-180 A-200
201–400	H-205 H-206 U-208 H-212 C-222 C-228 H-249 T-260 C-319 T-339 T-345 T-346
401–2006	H-412 H-500 E-550 KC-707 KC-767A KC-767B C-900 P-1150 F-2000 T-2006

Categories:

Development

Operational service

United States

Transatlantic flight

Italy

Variants

Operators

Civil

Military

Former

Aircraft on display

Argentina

United States

Specifications (HH-3E)

See also

References

External links