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H-3 AIRCRAFT DESCRIPTION Contractor:
Sikorsky Aircraft, Division of United Technologies
Type:
- General purpose, single rotary wing, twin turbine powered helicopter with emergency amphibious capabilities
- Available in Anti-Submarine Warfare (SH-3H/D) and Utility (UH-3H/SH-3G) configurations
Power Plant:
- SH-3H/UH-3H: Two General Electric T-58-GE-402 turboshaft engines. Each engine can produce approximately 1,500 shaft horsepower. Standard since 1991.
- SH-3D: Two General Electric T58-GE-10 turboshaft engines. Each engine can produce approximately 1,400 shaft horsepower.
- SH-3G: Two General Electric T58-GE-8F turboshaft engines. Each engine can produce approximately 1,250 shaft horsepower.
Accommodations:
- SH-3H/D: Crew of four (two pilots, two sensor operators) and up to three passengers
- UH-3H/SH-3G: Can be configured for up to 15 passengers in addition to the aircrew
Performance:
- SH-3D/H helicopters are capable of airspeeds up to 120 KIAS.
- Endurance varies between 3.5 and 5.5 hours depending on the mission.
- Maximum allowable weight (SH-3H/UH-3H): 21,000 pounds
- Maximum allowable weight (SH-3D): 20,500 pounds
- Maximum allowable weight (SH-3G): 19,100 pounds
- Provisions for carrying up to 6,000 pounds of external loads can be added.
Countermeasures:
Not applicable
Armament:
- Two MK-46/44 anti-submarine torpedoes
- Various sonobouys and pyrotechnic devices
Mission and Capabilities:
- Class IB aircraft designed for both shore- and ship-based operations
- U.S. Navy missions have included anti-submarine warfare, search and rescue, and miscellaneous utility roles, including limited external cargo capability.
- In the ASW role, major sensors include: AQS-13 and AQS-18 dipping sonar systems, various sonobuoys, and the ASQ-81 Magnetic Anomaly Detector. In addition, airborne search and weather radar have been mounted on the radar.
- Fully configured instruments for all weather operations
- Capable of automatic approach to a stabilized sustained hover
- The Teledyne AQS-123 TACNAV, a Doppler-based tactical navigation system, is installed in the SH-3H and UH-3H.
- Provisions for installation of a Global Position System (GPS) are being added to some models.
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