History of the Sikorsky SH-60 Seahawk

The Sikorsky SH-60 Seahawk is a naval variant of the ubiquitous UH-60 Blackhawk family of land-based transport helicopters. The origins of the UH-60 can be traced back to the 1970s, when the helicopter first flew on November 29, 1974, and officially entered service with the U.S. Army in 1979. To date, some 4,000 have been delivered and used by several militaries around the world. The UH-60 was subsequently adopted by the U.S.

Navy in naval form and made its maiden flight on December 12, 1979. Officially commissioned in 1984, at the time of writing (2013), frontline service is still in progress. The SH-60 remains the US Navy's primary helicopter.

Although derived from the land-based UH-60, the SH-60 has the surface quality required for a seaplane. These include foldable attachments for onboard loading (stern, horizontal stabilizer, folded main rotor), reinforced substructures for abuse during the ship's landing, and special coatings to protect against the corrosive effects of the Aral Sea air. Prior to the 1970s, the U.S.

Navy relied on its proven Kaman SH-2 Seasprite utility helicopter aboard aircraft carriers and accompanying surface ships. However, Seasprites were introduced in the late 1950s using technology that worked at the time, and were quickly superseded by more modern developments.

As a result, the situation forced the US Navy to modernize its rotorcraft fleet, which included following the US Army's selection of the Sikorsky S-70 helicopter as the primary stand, designated the SH-60 Seahawk. Based on the Sikorsky S-70B model design, the first production version was identified as "SH-60B".

The SH-60F "Sea Eagle" is a special carrier-based anti-submarine platform, 81 of which were produced. The HH-60H "Rescue Eagle", as the name suggests, was used for maritime search and rescue missions, and a total of about 42 were built.

The HH-60 "Jayhawk" is a version based on the HH-60H, designed to meet specific U.S. Coast Guard standards. The MH-60R "Seahawk" is a modernized version of the SH-60B with the "LAMPS Mk III Block II Upgrade" and support for upgraded missiles and torpedoes.

The MH-60S Knight Eagle is a cargo platform designed to replace the aging Boeing CH-46 Sea Knight tandem rotorcraft.

The CH-60E was a proposed troop carrier by the U.S. Marine Corps, but ended up with nothing. Development prototypes for the aforementioned production brands included the YSH-60R (later MH-60R) and the YCH-60S (later MH-60S).

The Seahawk has also been slightly modified for purchase abroad, and its customers consist primarily of US-friendly countries, including Australia, Brazil, Denmark, Greece, Japan, Spain, Taiwan, Singapore, Thailand, and Turkey. The export version is considered the S-70B Seahawk, while their civilian version is the S-70C.

The SH-60J is an anti-submarine mount for the Japan Maritime Self-Defense Force (JMSDF).

As of early 2013, the US Navy currently has more than 40 SH-60-related squadrons (including reserves) and has procured hundreds of them since 1985, with Sikorsky delivering to various parties during this period More than 700 helicopters.

Specification

Basic

Year:
1984
Status:
active, on duty
Staff:
4

Production

[715 units]:
Sikorsky Aircraft - USA / Mitsubishi Heavy Industries (MHI) - Japan

Roles

- Anti-Submarine Warfare (ASW)

- Naval/Navigation

- Traffic

Dimensions

Length:

64.80 ft (19.75 m)

Width:

53.64 ft (16.35 m)

Height:

17.06 ft (5.2 m)

Weight

Curb Weight:

6,895 kg

MTOW:

8,055 kg

(difference: +2,557 pt)

Performance

2 GE T700-GE-401C turboshaft engines, 1,890 shp each.

Performance

Maximum Speed:

207 mph (333 km/h; 180 knots)

Service Limit:

18,996 ft (5,790 m; 3.6 mi)

Maximum range:

437 miles (704 km; 380 nmi)

Rate of climb:

1,650 ft/min (503 m/min)

Armor

Optional:

1 or 2 x M60 7.62mm general purpose machine gun or M240 general purpose machine gun or 1 x GAU-16/A machine gun or 1 x GAU-17/A minigun.

4 or 8 x AGM-114 Hellfire Anti-Tank Missiles (SS-60B/HH-60H and MH-60S Block III).

3 x Mark 46 torpedoes or 3 x Mark 54 torpedoes

1 x AGM-119 Penguin anti-ship missile

1 x 30 mm Mk 44 Mod 0 RAMICS minesweeper

Changes

YSH-60B - Evaluation Prototype

SH-60B - Production version based on development model YSH-60B.

NSH-60B - Flight Test Platform

SH-60F "Seahawk"

NSH-60F - Based on the SH-60F; developed for the VH-60N Cockpit Upgrade Program.

HH-60H "Rescue Eagle" - Search and Rescue (SAR) platform.

YSH-60R - Two modified SH-60B models used for upgrade procedures; MH-60R is always operational.

MH-60R - Anti-Submarine Warfare (ASW) platform; formerly known as "LAMPS Mark III Block II Upgrade"; first flight as YSH-60R in December 1999; acquired by USN in 2006.

YCH-60S "Knight Eagle"

MH-60S "Knight Eagle"

S-70B - Export Designation

S-70B-1 - Anti-submarine platform of the Spanish Navy; equipped with lights.

S-70B-2 - Anti-submarine platform for the Royal Australian Navy; based on the SH-60B.

S-70B-3 (SH-60J) - Anti-submarine platform for the Japanese Navy.

S-70B-6 "Aegean Eagle" - based on Taiwan's S-70C(M)1/2; a mixture of the Greek military's SH-60B and SH-60F production models.

S-70B-7 - export model for the Thai Navy

S-70C(M)-1/2 "Thunder Eagle" - an export version of the Taiwan Navy.

S-70A(N) "Navy Hawk" - A blend of the S-70A "Black Hawk" and the S-70B "Sea Hawk", used in the Navy.

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