Sikorsky S-70B Seahawk

The naval helicopter built for maritime patrol and defense.

Overview

Sikorsky Helicopter United States ICAO: H60 1984–Present Active $36 million

The Sikorsky S-70B Seahawk is a naval derivative of the Black Hawk family. Designed for anti-submarine and surface warfare missions, it operates from ships and coastal bases. The aircraft has been widely exported.

Live Fleet Activity (H60)

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Specifications

Units
Engine
2 × General Electric T700-GE401C
Engine type
Turboshaft
Power
2 × 1,890 shp · 1,409 kW
Avionics
Rockwell Collins glass cockpit, BAE Systems
Wing tips
No winglets
Seats
12
Crew
Cabin width
5 ft 11 in  ·  1.80 m
Cabin height
4 ft 3 in  ·  1.30 m
Cabin length
10 ft 6 in  ·  3.20 m
Exterior length
64 ft 10 in  ·  19.76 m
Tail height
17 ft 0 in  ·  5.18 m
Fuselage diameter
6 ft 11 in  ·  2.10 m
Wing span
53 ft 8 in  ·  16.36 m
Baggage volume
Gross weight
Empty weight
Max takeoff weight
21,900 lb  ·  9,950 kg
Max landing weight
Max payload
6,000 lb  ·  2,750 kg
Fuel capacity
590 gal · 2,200 L · 1,800 kg (Jet A)
Max cruise speed
146 kt  ·  168 mph  ·  270 km/h
Maximum speed
Cruise speed
Approach speed
Range
450 nm  ·  520 mi  ·  830 km
Fuel burn
0.68 nm/gal  ·  0.33 km/L
Ceiling
12,000 ft  ·  3,700 m
Rate of climb
1,650 ft/min  ·  8 m/s
Takeoff distance
Landing distance
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SH-60B Seahawk

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Operational Context

Sikorsky S-70B Seahawk — maritime multirole helicopter

The S-70B variant emerged in the 1980s as an export version of the Seahawk series. It incorporates folding rotor blades and maritime sensors. The helicopter was optimized for shipboard deployment.

Two turboshaft engines producing approximately 1,940 shaft horsepower each power the aircraft. Cruise speed approaches 145 knots (269 km/h). Maximum takeoff weight exceeds 23,000 pounds (10,433 kg).

The S-70B has served with numerous naval forces worldwide. Its adaptability supports surveillance, anti-submarine, and search and rescue missions. Production continues in modernized forms.

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