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From: Miloch <Miloch_member@newsguy.com>
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Subject: "Marine 1" Sikorsky VH-60 White Hawk (part two)
Date: 18 Oct 2016 20:53:50 -0700
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https://en.wikipedia.org/wiki/Sikorsky_UH-60_Black_Hawk
The Sikorsky UH-60 Black Hawk is a four-bladed, twin-engine, medium-lift utility
helicopter manufactured by Sikorsky Aircraft. Sikorsky submitted the S-70 design
for the United States Army's Utility Tactical Transport Aircraft System (UTTAS)
competition in 1972. The Army designated the prototype as the YUH-60A and
selected the Black Hawk as the winner of the program in 1976, after a fly-off
competition with the Boeing Vertol YUH-61.
The UH-60A entered service with the U.S. Army in 1979, to replace the Bell UH-1
Iroquois as the Army's tactical transport helicopter. This was followed by the
fielding of electronic warfare and special operations variants of the Black
Hawk. Improved UH-60L and UH-60M utility variants have also been developed.
Modified versions have also been developed for the U.S. Navy, Air Force, and
Coast Guard. In addition to U.S. Army use, the UH-60 family has been exported to
several nations. Black Hawks have served in combat during conflicts in Grenada,
Panama, Iraq, Somalia, the Balkans, Afghanistan, and other areas in the Middle
East.
Role
Utility helicopter
Manufacturer
Sikorsky Aircraft
First flight
17 October 1974
Introduction
1979
Status
In service
Primary users
United States Army
Japan Self Defense Forces
Colombian Armed Forces
Turkish Armed Forces
Produced
Number built
about 4,000
Unit cost
UH-60: US$21.3 million (avg. U.S. procurement, 2012)
Developed from
Sikorsky S-70
Variants
Sikorsky SH-60 Seahawk
Sikorsky HH-60 Pave Hawk
Sikorsky HH-60 Jayhawk
Mitsubishi H-60
The UH-60 features four-blade main and tail rotors, and is powered by two
General Electric T700 turboshaft engines. The main rotor is fully articulated
and has elastomeric bearings in the rotor head. The tail rotor is canted and
features a rigid crossbeam. The helicopter has a long, low profile shape to meet
the Army's requirement for transporting aboard a C-130 Hercules, with some
disassembly. It can carry 11 troops with equipment, lift 2,600 pounds (1,200 kg)
of cargo internally or 9,000 pounds (4,100 kg) of cargo (for UH-60L/M)
externally by sling.
The Black Hawk helicopter series can perform a wide array of missions, including
the tactical transport of troops, electronic warfare, and aeromedical
evacuation. A VIP version known as the VH-60N is used to transport important
government officials (e.g., Congress, Executive departments) with the
helicopter's call sign of "Marine One" when transporting the President of the
United States. In air assault operations, it can move a squad of 11 combat
troops or reposition a 105 mm M119 howitzer with 30 rounds ammunition, and a
four-man crew in a single lift. The Black Hawk is equipped with advanced
avionics and electronics for increased survivability and capability, such as the
Global Positioning System.
Specifications (UH-60L)
General characteristics
Crew: 2 pilots (flight crew) with 2 crew chiefs/gunners
Capacity: 2,640 lb (1,200 kg) of cargo internally, including 11 troops or 6
stretchers, or 9,000 lb (4,100 kg) (UH-60L) of cargo externally
Length: 64 ft 10 in (19.76 m)
Fuselage length: 50 ft 1 in (15.27 m)
Fuselage width: 7 ft 9 in (2.36 m))
Rotor diameter: 53 ft 8 in (16.36 m)
Height: 16 ft 10 in (5.13 m)
Empty weight: 10,624 lb (4,819 kg)
Max. takeoff weight: 23,500 lb (10,660 kg)
each
Performance
Never exceed speed: 193 knots (222 mph; 357 km/h)
Maximum speed: 159 kn (183 mph; 294 km/h)
Cruise speed: 150 kn (170 mph; 280 km/h)
Combat radius: 368 mi (320 nmi; 592 km)
Ferry range: 1,380 mi (1,200 nmi; 2,220 km) with ESSS stub wings and external
tanks
Service ceiling: 19,000 ft (5,790 m)
Rate of climb: 1,315 ft/min (4.5 m/s)
Power/mass: 0.192 hp/lb (158 W/kg)
Armament
Guns:
Hardpoints: 4, 2 per ESSS stub wings and provisions to carry combinations of:
Rockets: 70 mm (2.75 in) Hydra 70 rockets
Missiles: AGM-114 Hellfire laser guided missiles, AIM-92 Stinger air-to-air
missiles
Other: 7.62 mm (0.30 in), 12.7 mm (0.50 in), 20 mm (0.787 in), or 30 mm (1.18
in) M230 gun pods
Bombs: Can be equipped with VOLCANO minefield dispersal system. See UH-60
Armament Subsystems for more information.
*
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