Modernization for Medium/Heavy Lift Helicopters - S-TEC Corporation

Modernization for Medium/Heavy Lift Helicopters
Lightweight and robust end-to-end avionics solutions
The most important thing we build is trust
3D SYNTHETIC VISION
EFIS
Increased safety and
reliability, reduced pilot
workload, designed for
future growth
TACTICAL/CIVIL RADIOS
Versatile, configurable
solutions that turn any
aircraft into a command
and control platform
AUDIO/RADIO
MANAGEMENT
Increased reliability
while reducing weight
and panel clutter
DIGITAL AUDIO
Reduced installation cost
and system weight plus
flexible, configurable,
design for tactical
operations

Cobham Avionics
Improved safety and reliability, lower operating costs, and reduced obsolescence
Nobody delivers better value than Cobham
Upgrade to lighter, more integrated
avionics for lower costs and improved
performance
Cobham provides the lightest end-to-end
avionics suite, which delivers best-of-breed
capabilities throughout the cockpit while
providing higher levels of integration to
outperform standalone or ad hoc solutions.
EFIS. The world’s lightest, most comprehensive,
integrated Electronic Flight Instrument
System, Cobham’s 3D Synthetic Vision EFIS
is the only one to be both Part 27- and
Part 29-certified, and the only available as
factory–standard on a production helicopter.
Audio Management. Cobham’s Audio/Radio
Management System (ARMS) allows control
of all aircraft communications and cabin audio
systems with components that offer considerable
benefits in weight, space, and reliability.
Radios. Tens of thousands of Cobham civil,
tactical and Satcom radio systems are flying
civil, military, special mission, air transport and
homeland security missions worldwide.
SATCOM/SwiftBroadband. Cobham’s steerable
and phased-array antennas and Inmarsat
systems enable enhanced voice and highspeed
data communications. Our innovative
solutions reduce the number of antennas
required for the increasingly complex communications
and data systems on today’s
aircraft. Cobham also offers a full range of
SwiftBroadband connectivity options for data
transmission.
DACS. Cobham’s Digital Audio Control
System (DACS) distributes and controls aircraft
audio—to/from all transceivers, receivers, and
aural alert sources. Designed for tactical
operations, DACS delivers enhanced
performance at reduced weight,
complexity, and installation cost.
Advantages of Cobham
end-to-end avionics solutions
• Fully digital. Greater precision and
increased reliability for higher dispatch rates
and higher mission completion and success.
Reduced box count and lighter system
weight enable enhanced payload capabilities.
• Greater situational awareness. Reduced
pilot workload and fatigue for more confident
command and control. Enhanced crew
safety, lower operating costs and reduced
equipment repair and maintenance expenses.
• Future-proof. Software can be field-updated
as new functionality becomes available to
grow capability without replacing hardware
components.
The Cobham avionics suite is ideally suited
for the weight and space requirements of
medium and heavy lift helicopters, including:
• Sikorsky S-61
• Eurocopter Puma SA-330
• Mil Mi-8
• Mil Mi-17
• Mil Mi-171
• Mil Mi-24
• Mil Mi-26

Why Cobham Avionics
Cobham provides integrated, end-to-end
avionics solutions covering general aviation,
special mission, military training, business
and commuter, airline transport fixed-wing
and helicopter platforms.
The requirements of a variety of airborne
applications can be met through platform
specific implementation of the following
technologies:
• ADAHRS and GPS sensors
• Airborne file servers and networking
• Audio and radio management
• Analog and digital autopilots and
stability augmentation for helicopters
and fixed wing aircraft
• Civil and tactical communications
• Electronic Flight Instrument Systems
• Emergency locator transmitters
• Engine indication and crew alerting
• Navigation (VHF and RNAV)
• System integration and certification
• Terrain awareness and warning
systems
Leveraging a global presence, FAA,
EASA, and TC certifications, a broad
technology base, and existing OEM
positions with Agusta, Airbus, Bell,
Boeing, Bombardier, Eurocopter and
Hawker Beechcraft, Cobham offers
high-value solutions for virtually
any avionics application.

Cobham Avionics
3D Synthetic Vision Electronic Flight Instrument System (EFIS)
Superior situational awareness, reduced workload, and greater command and control
Integrated Display Units (IDUs)
• Full-color, hi-res, sunlight-readable (1,000 nit
• LCD screen with fully-adjustable brightness
• Dual, redundant backlight
• Landscape display: 5” X 4”, 4.5 lbs.
• Portrait display: 6” x 8”, 9.5 lbs.
• Input: AHRS, ADC, GPS receiver (all included)
• Integral HTAWS and FMS
• DO-178B, Level-A Software
• NVG-compatible
• Digital flight performance recording of last
five flights
• Redundant display/sensor architecture
• RNP 0.3/BRNAV/PRNAV-compliant
• Engine display and master caution system
options
• Certified with most existing autopilots
• -55°C to +75°C operating range
• Non-ITAR
1 The IDU-450 is 6.3” high x 5.5” wide x 4.5” deep and weighs only 4.5 lbs.
2 The IDU-680 provides a 6” x 8” portrait display and weighs just 9.5 lbs.

Superior situational awareness, reduced
workload, greater command and control
Cobham delivers the new standard in
helicopter avionics. In one intuitive display, the
Cobham EFIS integrates these breakthroughs:
• 3D Synthetic Vision
• Highway-In-The-Sky (HITS) navigation
• Helicopter TAWS (HTAWS)
• Hover Vector
• Graphical Flight Management System (FMS)
• Head-Up Display (HUD) symbology
• Unusual Attitude Recovery (UAR)
• And much more
Not only is Cobham the safest, most advanced
system available. It is also the number-one
selling helicopter EFIS worldwide.
Conformal 3D Synthetic Vision
The Cobham EFIS is the only FAA-certified
avionics system to show you three-dimensional
terrain, obstacles, and traffic in real time on
the Primary Flight Display (PFD). It delivers a
real-time visual flow so realistic, so true-to-life,
it has been called Virtual VFR. The Cobham 3D
Synthetic Vision EFIS takes safety to an entirely
new level. The inset photo above shows the
Primary Flight Display while flying into the valley
3 The green boxes that create the Highway-In-The-Sky route on the PFD lead the pilot safely to his destination.
1
pictured. Note how accurately the display
conforms to the actual terrain in the photo.
That’s conformal 3D Synthetic Vision. Now
imagine the situation—not as sunny VFR—but
as a nighttime evacuation under deteriorating
weather conditions.
Highway-In-The-Sky (HITS)
Highway-In-The-Sky (HITS) allows pilots to fly
with ILS precision to any point in the world. The
HITS route appears on the PFD as a series of
green boxes superimposed over the flowing
terrain of the 3D Synthetic Vision. The pilot flies
through the boxes to follow the HITS route.
The applications are endless. For example, HITS
makes it easy to fly a precise search and rescue
grid—accurate to less than a meter.

Cobham Avionics
3D Synthetic Vision EFIS
Superior situational awareness, reduced workload, and greater command and control
Hover Vector
When groundspeed drops below 30 knots, the
Flight Path Marker on the Primary Flight Display
converts to a “bull’s-eye” ringed by concentric
circles that delineate 15- and 30-knot ground
speeds. An expanded version of the Hover
Vector can also be displayed on the MFD,
making it easier for pilots to quickly respond
to small changes in aircraft position. The Hover
Vector enhances productivity and control
during surveillance, long-line work, and other
precision procedures. It also provides invaluable
feedback to pilots in low-visibility conditions.
Helicopter TAWS (HTAWS)
Cobham’s Helicopter TAWS (HTAWS)
provides critical visual and audio cues when
terrain or obstacles present a hazard. Cobham’s
HTAWS offers configurable filters for predictive
terrain and obstruction alerting to minimize
nuisance alerts. A low-altitude mode provides
enhanced safety when operating at
lower-than-normal altitude.
• Forward-Looking Terrain Alerts
• Excessive Closure to Terrain
• Excessive Rate of Descent
• Sink Rate after Takeoff or on Missed Approach
Forward-Looking Terrain Alerts Excessive Closure to Terrain Excessive Rate of Descent Sink Rate after Takeoff or on Missed Approach

1 The Cobham 3D Synthetic Vision EFIS provides numerous integrated capabilities and functionalities, simplifying panel for reduced pilot
workload while reducing box count to enable greater payload capacity.
Integrated Flight Management System
Unlike competitive flight systems, Cobham’s
Flight Management System (FMS) is fully
integrated in the EFIS, omitting the need
for extra components, thereby maximizing
valuable panel space and conserving critical
weight. It features an integrated GPS, graphical
mission planning, head-up implementation on
the PFD, and system redundancy. In addition,
the FMS supports all ARINC-424 leg types and
VNAV planning, and enables user-definable
approaches and special-use airspace.
ADS-B
Automatic Dependant Surveillance Broadcast
(ADS-B) datalink information on the MFD
monitors taxiway and runway traffic and—in
remote or mountainous terrain where there is
no radar coverage—provides greatly enhanced
pilot awareness. This improves safety in poor
visual conditions, lessens the risk of runway
incursions, and reduces the number of
instructions from ground-based controllers. In
addition, ADS-B supports weather products,
providing METAR and TAF information.
Night Vision Goggle (NVG) compatibility
The Cobham EFIS provides an edge when
flying nighttime police, rescue, surveillance,
and homeland security missions. NVG
compatibility—combined with the enhanced
situational awareness of 3D Synthetic Vision
and HTAWS—ensures the safest possible night
flying, without the need for additional
equipment or options.

Cobham Avionics
Tactical Radio/Civil Radio
Versatile, configurable solutions for creating airborne command and control centers
Tactical Radio
Cobham is the leading supplier of multi-band,
airborne, FM/AM radio communications
systems. Cobham’s tactical radios deliver
clear, reliable, long-range communications.
Versatile and configurable, these multi-band
FM/AM systems can turn an aircraft into a
command and control center capable of
performing relays, simulcasts, repeater, and
full-duplex operations.
Operating at frequencies from 29.7 MHz to 960
MHz, Cobham radios offer manual frequency
agility, more than 300 preset channels, and
NVG compatibility.
Civil Radio
Cobham civil radios deliver up to 50% panel
space savings and provide significant weight
reduction to enable higher payloads.
Features include VHF Com and Nav tuning
capability, LCD color display, NVG compatibility,
performance at altitudes up to 55,000
feet/16,764 meters and at temperatures from
-4°F to +158°F (-20°C to +55°C).

Satcom/SwiftBroadband
Light, compact systems ruggedized for helicopters
HGA-6500 + SwiftBroadband
Designed with a hard radome and
integrated mounting plate, the HGA-6500 is
the first antenna of this type to accept
steering commands directly from any ARINC
741 compatible Satcom system. Eliminates the
need to install a separate Antenna Control Unit
(ACU) or Beam Steering Unit (BSU), reducing
system box count, weight and power
consumption.
• Single channel (432K) or dual channel (856K)
• Ruggedized and qualified for helicopter
installation
• Smallest swept volume available for a
mechanically steered high gain antenna
• Higher gain than single helix antenna designs
Single Channel
Dual Channel
HGA-8000
HGA-8000
+
SDU-7320
+ +
SDU-7320 HGA-7450
Single Channel
HGA-6500
Dual Channel
HGA-6500
+ =
HLD-7260
+ =
Diplexer
13.3 kgs
29.3 lbs
+
17.6 kgs
38.7 lbs
SDU-7320
+ +
SDU-7320 HGA-7450
+ =
HLD-7260
+ =
Diplexer
7.2 kgs
15.9 lbs
11.5 kgs
25.3 lbs
HGA-8000 + SwiftBroadband
Circular, phased-array, fuselage-mount,
High Gain Inmarsat antenna originally
designed for the escape hatch cover of the
C-130 transport aircraft, but also qualified on
military helicopters, where its low profile is a
key requirement and gives a distinct advantage
over competitors. Fully compatible with ARINC
741 standards and is compliant to Classic Aero
(H/H ), Swift64 and SwiftBroadband Satcom
system specifications.
• Single channel (432K) or dual channel (856K)
• Effective multi-path rejection at low
elevation
• Lowest profile in circular form factor
• Solid-state, highly-reliable design

Cobham Avionics
Audio/Radio Management System (ARMS)
Increased reliability while saving space and weight
Audio/Radio Management System
(ARMS)
Flexibility is the key to efficient and effective
avionics systems. For aircraft requiring a
consolidated audio/radio configuration, the
Cobham Audio/Radio Management System
maximizes panel space and reduces weight,
replacing the standard radio and audio control
panels. Cobham’s ARMS saves on acquisition,
installation, maintenance and logistic costs.
ARMS features include a color LCD active
matrix, software data loading function,
modular design, and the ability to adapt to
virtually any cockpit panel.
ARMS reliably interfaces with the aircraft Data
Acquisition Unit (DAU) and Flight Management
System (FMS), and has the capability to manage
multiple functions:
• Radio communications
• Radio navigation
• Radio auto-tuning
• Aural warning
• GPS or DGPS
• Cabin intercom/audio system
• Aircraft identification system
• Satellite communications
• Transponder code
• Communication router (datalink function)
• SELCAL function
• Public address amplification

Digital Audio Control System (DACS)
Reduced installation and maintenance costs, significant weight savings, and improved performance
Digital Audio Control System (DACS)
The Cobham Digital Audio Control System
(DACS) is a communications management
system with the ability to distribute and
control all audio in an aircraft, to/from all
transceivers, receivers and aural alert sources.
Compared to an analog audio system, the
DACS provides:
• Much simpler installation
• Reduced installation and maintenance costs
• Significant weight savings
• Improved performance (configurable, more
features, reduced crosstalk, higher immunity
to noise, etc.)
The integrated, multichannel intercom system
and programmable user definition allow the
audio system to be configured to suit
customer specific communication schemes.
Audio Control Panel (ACP51)
Audio Control Panel (ACP53)
Audio Management Unit (AMU50)
Remote Memory (RM01)
Major components in the system:
• Audio Control Panels (ACP51 and/or ACP53)
• Audio Management Unit (AMU50)
• Remote Memory (RM01)
Features and Benefits
• Designed for tactical operations
• Digital audio processing and control
• Integrated Audio Warning Generator
• Enhanced performance
• Reduced system weight
• Reduced installation cost and complexity
• Flexible and configurable using DACS software
• TSO-C139, ETSO-C50c

Cobham Avionics
Antenna Systems
Customizable systems for medium/heavy lift rotorcraft
High Frequency Antennas
• HF wire antennas and masts
• Towel bar Near Vertical Incidence Skyway
(NVIS) antennas
• Integrated with all HF transceivers
• Operable at very high temperatures across
the frequency range
• Rugged design to meet all Mil Std
requirements
Communication Antennas
• Frequency ranges from 30 – 960 MHz
• Blade and conformal designs
• Passive or tuned antennas
• Tuned Antennas for all frequency hopping
radios
• Logic Convertor Units for all applications
• Filters, splitters and diplexers for ease of
installation
• High gain, low profile, rugged design
• Conformal antennas to reduce drag
Navigation Antennas
• DME/Transponder/TACAN/L band antennas
• VOR/ILS/MB antennas
• GPS, L1 and L2 and Anti-jam antennas
• Low profile and conformal designs
• Combined UHF SATCOM and GPS antennas

Search & Rescue/Tetra
Static Dischargers
• Superior noise reduction
• State-of-the-art construction
• Low cost of ownership
• Wide range for better performance
TETRA
• Uses Sepura Core Radio
• SRG3500 or derivative
• Air interface and E2E encryption
• TEA 1, 2, 3, 4 capability
• Gateway function
• High level of interoperability with
all common network infrastructures
Direction-Finding Systems
• Stand-alone and fully integrated systems
covering 30-470 MHz
• Homing Adapters
• Multi mode
• Guard receivers
• Audio control interfaces
• PSR interrogator interface for CSAR operations

Cobham Avionics
Global Support and Engineering Network
Rapid response to customer needs worldwide
Maintenance, Repair, and Overhaul (MRO) Service Centers (USA)
• FAA FAR-145 repair station with EASA authorization
• Depot-level repair station to component level
• AOG spares
Maintenance, Repair, and Overhaul (MRO) Service Centers (Europe, Africa and Asia)
• SRU-level repair station capability
• Localized technical assistance
• Forward spares for AOG support
Global Response Center
• Field Service Engineers
• Broad Cobham product knowledge and technical assistance
• Advanced systems troubleshooting
Global Reseller Network
• Trained and equipped to perform installations and line service maintenance on
Cobham equipment
• Supported by Cobham MRO facilities in the USA
• International Cobham MRO facilities provide geographic convenience
Customized training based on specific customer requirements
• Flight crew training
• Maintenance training

Reduce Integration Risk and Time Scale
Engineering and certification data packages available, including:
• Installation Drawings
• Wiring Diagrams
• Structural Analysis
• Electrical Load Analysis
• Safety Analyses
• Test Plans
• Flight Manual Supplement
• Continued Airworthiness Instructions
• Certification Correspondence Templates
• On-Site Engineering and Installation Support

Cobham
Mineral Wells, TX (USA) T: (817) 215-7600 E: sales.mineralwells@cobham.com
© 2011 Cobham, plc. All rights reserved. Information supplied by Cobham Avionics is believed to be accurate and reliable. Cobham Avionics assumes no responsibility for any errors in this brochure.
Cobham Avionics reserves the right, without notice, to make changes in product design or specifications. Cover photo courtesy of Pedro Pedreira Antón, who owns the image copyright.
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