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The EH101
military utility medium lift helicopter is
manufactured by AgustaWestland (formerly E.H.
Industries), a joint venture company formed by
Agusta of Italy and the British company GKN. The
EH101 is also produced in naval and civil
versions. In July 2002, AgustaWestland signed an
agreements with Lockheed Martin and Bell
Helicopters to jointly market and produce a
version of the helicopter for the US market, the
US101. The US101 helicopter is chosen for the US
Marine One presidential transport fleet
requirement.
The EH101 is
the benchmark medium-lift helicopter, which is
now in service with operators around the world.
The three-engine EH101 is the most advanced
aircraft in its category and incorporates
advanced systems to provide outstanding
performance. Originating from the requirements
of the naval forces of both Italy and the UK,
the EH101 is unique in being designed for
maritime and other military missions.
EH101 Multi-Mission Capability:
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Combat
& non-combat military search and
rescue.
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Civilian search and rescue, disaster
relief, medical evacuation.
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Mine
countermeasures.
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Anti-submarine warfare.
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Onboard delivery of cargo.
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VIP &
personnel transport.
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Special Operations Forces.
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Law-enforcement missions.
US101
The U.S. Navy
selected (January 28, 2005) the US101
for a new fleet of "Marine One"
helicopters for the President of the
United States. Lockheed Martin, which
leads Team US101 as prime contractor,
will receive a $1.7 billion contract
from the Navy for the Marine One
program's systems development and
demonstration phase. The team will
build and equip the US101 medium-lift
helicopter to provide a safe and secure
"Oval Office in the Sky" for the
President.
Based on the current
contract schedule, the first US101 ready
to transport the President is expected
to be available in 2009, with the entire
fleet of 23 US101 delivered to the
Marine One squadron by late 2014.
For the American
version of the Merlin, the US101,
Lockheed Martin would build the
avionics; Bell Helicopter would make the
airframe; and AgustaWestland would make
the drive train, rotors and gearboxes.
General Electric will power the engines
(CT-7-8E) of the US-101.
KHI-01
AgustaWestland and
Kawasaki Heavy Industries (KHI) signed a
license and purchase agreement in 2003
to produce and support the Japanese
EH101s (designated KHI-01). KHI has
established manufacturing, test flight
and support facilities at its Gifu works
in Japan. Fourteen utility RTM322
powered, rear-ramped variants of the
EH101 have been ordered to replace the
Japan Maritime Self Defence Force’s (JMSDF)
fleet of Sikorsky MH-53Es and S-61s.
One KHI01 is built by
AgustaWestland’s Yeovilton facility in
the UK. Aircraft kits for the remaining
13 aircraft will be prepared by
AgustaWestland in the UK with final
assembly taking place in Japan. The KHI
build line is due to receive the first
two aircraft in the last quarter of 2005
with delivery of the first aircraft to
the JDA in 2006.
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Developing Nation: |
UK/Italy. |
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Manufacturer/Designer: |
AgustaWestland. |
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Task: |
Multi-role
helicopter. |
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First Flight: |
October 9,1987
serial ZF641. |
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First Delivery: |
January 2001. |
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Crew: |
2 Cockpit crew,
the ASW versions will also carry two more sensor
operators / observers. |
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Troops: |
30 troops or 16
stretchers. |
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Cargo volume: |
29 m³. |
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Maine rotor
blades: |
5. |
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Maine rotor
diameter: |
18,59 m. |
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Maine rotor disc
area: |
271,5 m². |
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Tail rotor
blades: |
4. |
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Tail rotor
diameter: |
4,01 m. |
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Tail rotor disc
area: |
12,65 m². |
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Length overall, rotors
turning: |
22,81 m. |
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Length fuselage: |
19,53 m. |
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Height overall: |
6,65 m. |
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Engine (s): |
3 x Rolls-Royce
Turboméca RTM322-01/8 or RTM332-02/8 for UK
military versions or General Electric
T700-GE-T6A for Italian navy version. Civil
models to get General Electric CT7-6 turbo
shafts. |
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Weight: |
- Empty: 10.500 Kg.
- Internal fuel:
3.222 Liters.
- External fuel:
5.370 Liters. |
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Payload: |
- Internal: Naval
variant 960 Kg.
Merlin HC.3 3.120 Kg.
- External at
slung: 5.443 Kg. |
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Max. Take off weight: |
14.600 Kg. |
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Cruise Speed: |
278 km/h. |
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Max. Speed: |
309 km/h.
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Service ceiling: |
4.575 m. |
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Hovering ceiling: |
- in ground
effect 2.225 m.
- out of ground
effect 1.128 m. |
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Max. Range: |
2.093 km. |
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Performance: |
Max. endurance 7
hours. |
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Rate of climb: |
609 m per minute. |
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Radar: |
GEC Ferranti Blue
Kestrel 360°search radar. |
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Weapons: |
- Pintle mounted
12.7/7.62 machine gun.
- Anti-ship
missiles.
- Torpedoes.
- Depth charges.
- Marte Mk.2S
missile. |
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AgustaWestland
EH101 operators: |
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United Kingdom. |
- 44 Merlin
HM.1 (Navy).
- 22 Merlin HC.3
(RAF). |
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US Navy |
- 23 US101
(Marine one's) |
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Italy. |
- 16
EH101-110ASW. |
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Canada. |
- 15 CH-149
Cormorant. |
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Japan. |
- 14 KHI01 |
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Denmark. |
- 14 EH101 |
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Portugal. |
- 12 EH101 (first
delivery December 22nd 2004) |
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Tokyo
Metropolitan Police. |
- 1 EH101 |
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AgustaWestland EH101 Crashes:
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Prototype MM600
(PP-2) crashed January 21, 1993
during low altitude flight in Italy.
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On October 27, 2000
ZH844 Merlin HM1 from 700M Initial
Flying Trails Squadron, Royal Navy
crashed in the water of the Inner
Sound near Applecross, United
Kingdom. The Merlin HM1 broke in
two pieces, and the crew was rescued
by a fishers vessel.
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ZH859/584 Merlin HM1
from 824 squadron Royal Navy crashed
during take-off from RNAS Culdrose
March 30, 2004. The crew of fife was
wounded.
EH101 in
service:
SFOR
In early
April 2003, two Royal Air Force EH101
Merlin HC Mk3 aircraft self-deployed
from the UK to Banja Luca, Bosnia, to
support NATO's Stabilization Force (SFOR).
By late July, the aircraft had logged
460 flight hours transporting security
forces across a country strewn with an
estimated five million anti-personnel
mines. From November 2003 five Royal Air
Force Merlin HC3, each aircraft was
outfitted with a directional infrared
countermeasures system (DIRCM) for
anti-missile system defense and a winch
for load lifting. Secondary roles
included load lifting, aerial
surveillance and transporting military
and political VIPs. Aircraft
availability is listed at 98 percent.
Gulf
Region
In March
2003 Britain's Royal Navy assigned four
EH101 Merlin Mk1 aircraft to fly
surveillance missions in the Arabian
Gulf.
Deployed
with the Royal Fleet Auxiliary Fort
Victoria, the Merlin Mk.1s flew 800
hours providing airborne radar coverage
of the waters surrounding the Task
Force. A Merlin was continuously on
station 24/7 above the fleet for three
weeks of the four-month deployment.
During the critical 14 days of the
conflict, the four aircraft flew a total
200 hours.
The
Merlin's also proved their
interoperability with coalition and
other NATO forces. Each aircraft's Link
11 capability was fully integrated with
the fleet's C4I network, allowing naval
commanders to monitor EH101
radar-generated tracks and information
in real time. |
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