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Airmanship Knowledge
Learning Outcome 3
Part 5
Helicopters
Revision 2.00
Airmanship Knowledge
Learning Outcome 3
Know the aircraft in service with the
Royal Air Force
Contents
• Helicopters
– Chinook HC2 / HC2A / HC3
– Merlin HC3 / HC3A
– Puma HC1
– Griffin HAR2 / HT1
– Squirrel HT1
– Sea King HAR3 / HAR3A
– Agusta A109E
Chinook HC2 / HC2A / HC3
Reporting Name
Role Letters & Marks
Role
Chinook
HC2 / HC2A / HC3
Heavy-Lift Helicopter
Chinook HC2 / HC2A
Chinook HC2 / HC2A
Chinook HC2 / HC2A
Chinook HC2 / HC2A
Chinook HC2 / HC2A
Chinook HC3
Chinook HC3
Chinook HC3
Chinook HC2 / HC2A / HC3
• The Chinook is a tandem-rotored, twin engined mediumlift helicopter with a crew of four. It can carry up to 45
fully equipped troops or up to 11 tonnes of equipment
either internally or under-slung.
• A number of Chinook HC2 helicopters have recently
been updated to HC2A standard with modifications to
increase the strength of the airframe.
• The Chinook HC3 is the RAF version of the US MH-47E
Special Operations Chinook
• The Chinook HC3 can be distinguished from the HC2 by
its larger fuel sponsons and longer nose.
Chinook HC2 / HC2A
Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINES
18.29M
15.54M (HC2)
15.9M (HC3)
4
157kts (291km/h)
at max. weight
2 x Avco Lycoming
T55-L-712 turboshafts
(HC2)
2x Honeywell 55-GA-714
turboshafts (HC3)
Merlin HC3 / HC3A
Reporting Name
Role Letters & Marks
Role
Merlin
HC3 / HC3A
Medium-Lift Helicopter
Merlin HC3
Merlin HC3
Merlin HC3
Merlin HC3A
Merlin HC3A
Merlin HC3 / HC3A
• Merlin HC3 is operated by 28 Sqn (HC3) and 78 Sqn
(HC3A) at RAF Benson
• Merlin replaced the Westland Wessex in RAF service
• Six Merlin HC3As were purchased from the Royal
Danish Air Force in 2007 to provide additional capacity
on operations in Afghanistan
• Main visual difference between HC3 and HC3A is that
they have different noses.
Merlin HC3 Technical Data
ROTOR DIAMETER
LENGTH
CREW
OPERATING SPEED
ENGINES
18.59M
22.81M
2 Pilots 1 Crew
167kts (309 km/h)
3 2240 shp Rolls-Royce
turbomeca RTM 322
Puma HC1
Reporting Name
Role Letters & Marks
Role
Puma
HC1
Assault Transport Helicopter
Puma HC1
Puma HC1
Puma HC1
Puma HC1
Puma HC1
• The Puma entered service in the RAF in 1971. It has
auto pilot, a heated, ventilated and sound-proofed cabin,
retractable undercarriage, and modern navigation and
search systems.
• The Puma has many roles but in the RAF it is used as a
tactical transport and support helicopter with a casualty
evacuation capability.
• It can carry 16 fully equipped troops, or 6 stretchers and
6 sitting patients. A 3,200 kgs under-slung cargo can be
carried.
• The tailboom, rotor blades and wheels can be removed
to allow transportation in a Hercules to any theatre of
operation.
Puma HC1Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINES
15.1M
14.1M
3
142kts at max weight
158kts when lighter
Two Turbomeca
Turmo turboshafts
Griffin HT1 / HAR2
Reporting Name
Role Letters & Marks
Role
Griffin
HT1 / HAR2
Helicopter Training & Search
& Rescue
Griffin HT1 / HAR2
Griffin HT1 / HAR2
Griffin HT1 / HAR2
Griffin HT1 / HAR2
Griffin HT1 / HAR2
• The Griffin HT1, a training helicopter, it is operated within
the Defence Helicopter Flying School, a combined
operation by FR Aviation, Bristow Helicopters and
SERCO, to train helicopter pilots for all three services.
• First entered service in 1997, civilian contractor owned
and operated.
• Manufactured by Bell Helicopter Textron, Fort Worth,
Texas, the essentially similar Bell 212s are operated by
Brunei.
Griffin HT1 / HAR2
Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINE
14.02M
12.92M
2
258km/h (161mph)
Two Pratt & Whitney PT6T-3D
turboshafts
Squirrel HT1
Reporting Name
Role Letters & Marks
Role
Squirrel
HT1
Helicopter Training
Squirrel HT1
Squirrel HT1
Squirrel HT1
Squirrel HT1
Squirrel HT1
The Squirrel HT1 is used for advanced helicopter training
at RAF Shawbury
Manufactured by Aerospatiale (now Eurocopter) in France
Squirrel HT1Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINE
10.69M
12.94M
2
144mph
1 x Turbomeca
Arriel turboshaft
Sea King HAR3 / HAR3A
Reporting Name
Role Letters & Marks
Role
Sea King
HAR3 / HAR3A
Helicopter Training
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
Sea King HAR3 / HAR3A
The Squirrel HT1 is used for advanced helicopter training
at RAF Shawbury.
Manufactured by Aerospatiale (now Eurocopter) in France.
Sea King HAR3 / HAR3A
Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINE
18.9m
22.15m
4
125kts
Two Rolls-Royce Gnome
turboshafts
Augusta A109E
Reporting Name
Role Letters & Marks
Role
Augusta A109E
Helicopter
Augusta A109E
Augusta A109E
Augusta A109E
Augusta A109E Technical Data
ROTOR DIAMETER
LENGTH
CREW
MAXIMUM SPEED
ENGINE
10.99M
13.07M
1
168kts
2 x Pratt & Whitney
206C Turboshafts
Questions?