The HH-65 Dolphin is a twin-engined, single main rotor, MEDEVAC-capable, Search and Rescue (SAR) helicopter built in the USA and operated by the United States Coast Guard (USCG). It is a variant of the Eurocopter Dauphin.
The SA366 G1 Dauphin version was selected by the United States Coast Guard (USCG) in 1979 as its new short range recovery (SRR) air-sea rescue helicopter, replacing the Sikorsky HH-52A Sea Guard. In total 99 helicopters, optimised for the USCG's search and rescue role tasks and given the designation HH-65A Dolphin, were acquired. The HH-65A is not able to perform water landings. The HH-65 normally carries a crew of four: Pilot, Copilot, Flight Mechanic and Rescue Swimmer.
The Dolphin was manufactured by Aerospatiale Helicopter Corporation in Grand Prairie, Texas (now American Eurocopter). Textron Lycoming (now Honeywell) built the Dolphin's LTS101-750B-2 turboshaft engines in Williamsport, Pennsylvania, and Rockwell Collins manufactured the HH-65's electronic systems in Cedar Rapids, Iowa.
The HH-65 Dolphin is used for homeland security patrols, cargo, drug interdiction, ice breaking, military readiness, pollution control, and search and rescue missions. The HH-65 is known for its Fenestron tail rotor and its autopilot capabilities, which can complete an unaided approach to the water and bring the aircraft into a stable 50 ft hover, or automatically fly search patterns, an ability which allows the crew to engage in other tasks.
In order to comply with U.S. regulations relating to local content (based primarily on the value of individual components of the aircraft), engineering changes were required — notably, the SA365's original Turbomeca Arriel engines were replaced with LTS101-750B-2 powerplants, which at the time represented the cutting edge of turboshaft design. Unfortunately, initial teething problems with this engine worsened as the HH-65's weight grew, resulting in several in-flight loss-of-power events. The USCG funded a program to improve engine reliability, but the resulting LTS101-850 failed to meet expectations.
In 1994, the USCG therefore held a fast-track competition to select a new powerplant, and in March 2004 the Guard announced the selection of the Turbomeca Arriel 2C2-CG, already installed on the EC155. This upgrade began in 2004, and has resulted in a safer and more capable aircraft. These modified HH-65As and HH-65Bs, which also gained new avionics and other enhancements, have been designated as HH-65Cs.
The HH-65A's minimum equipment requirements exceeded anything previously packaged into one helicopter weighing in at less than 10,000 pounds. 75% of the HH-65's structure — including rotorhead, rotor blades and fuselage — consists of corrosion-resistant composite materials. Some Coast Guard pilots refer the Dolphin as "Tupperwolf", a reference to tupperware, because of the aircraft's high composites content.
Also a unique feature of the Dolphin is its computerized flight management system, which integrates state-of-the-art communications and navigation equipment. This system provides automatic flight control. At the pilot's direction, the system will bring the aircraft to a stable hover 50 feet above a selected object. This is an important safety feature in darkness or inclement weather. Selected search patterns can be flown automatically, freeing the pilot and copilot to concentrate on sighting & searching the object.
Certified for single-pilot instrument flight rules (IFR) operation, the HH-65A was the first helicopter certified with a four-axis autopilot, allowing for hands-off hover over a pre-determined location.
The Dolphin is primarily a Short Range Recovery (SRR) aircraft. There are now total of 102 Dolphins in the Coast Guard Fleet. The fleet has home ports in 17 cities on the Atlantic and Pacific Oceans, Gulf of Mexico, Hawaii, and the Great Lakes region.
The Dolphin is usually deployed from shore but it can be deployed from medium and high endurance Coast Guard Cutters, as well as the Polar Icebreakers. The Dolphin's main jobs are: search and rescue, enforcement of laws and treaties (including drug interdiction), polar ice breaking, marine environmental protection including pollution control, and military readiness.
When deployed from an icebreaker, the helicopter acts as the ship's eyes, searching out thinner and more navigable ice channels. They also have the job of airlifting supplies to villages isolated by winter, or transporting scientists to conduct remote research.
The HH-65C is also used to patrol the air defense identification zone (ADIZ) around Washington, DC, also known as the National Capital Region (NCR). Seven new-build HH-65Cs were acquired for this 'armed use of force' mission.
US Patent Issued to Mobimar Oy on Aug. 24 for "Method for Breaking Ice, Motor-Driven Watercraft and Its Use" (Finnish Inventor)
Aug 25, 2010; ALEXANDRIA, Va., Aug. 30 -- United States Patent no. 7,779,771, issued on Aug. 24, was assigned to Mobimar Oy (Turku, Finland)....
Breaking Ice: Renewable Resources and Ocean Management in the Canadian North. (CD-ROM included).(Brief Article)(Book Review)
Nov 01, 2005; 1552381595 Breaking ice; renewable resources and ocean management in the Canadian north. (CD-ROM included) Ed. by Fikret Berkes...
SC Florida eyes breaking ice among TCI systems. (Sports Channel Florida hopes that newly signed affiliation agreement with Storer Cable/ Tele-Communications Inc. will open more doors with other cable operators)
Feb 18, 1991; SC Florida Eyes Breaking Ice Among TCI Systems SportsChannel Florida is looking to gain momentum from its recent affiliation...