Embraer reduces risk and costs with future proof data systems The Embraer Legacy 500 and the smaller Legacy 450 variant are mid-sized business jets which began development in 2007. Embraer started development from the ground up with a totally new design. The System Acra KAM-500 Data Acquisition equipment was used in an Ethernet system. It was able to handle faster data rates to enable the removal of separate dedicated systems such as avionic bus recorders and engine monitoring units. The Results Lower risk and future proof solution A 30% reduction in telemetry bandwidth Saved time and money throughout the organization

1. Legacy 500
The Embraer Legacy 500 and the
smaller Legacy 450 variant are
mid-sized business jets which
began development in 2007.
Embraer started development from
the ground up with a totally new
design.
The System
Acra KAM-500 Data Acquisition
equipment was used in an Ethernet
system. It was able to handle faster
data rates to enable the removal
of separate dedicated systems
such as avionic bus recorders and
engine monitoring units.
The Results
Embraer reduces risk and • Lower risk and future proof
solution
costs with future proof • A 30% reduction in telemetry
bandwidth
• Saved time and money
data systems throughout the organization

2. The System Acra KAM-500
An Ethernet system was used to accommodate Lowers Risk
Proven on every platform type in
faster data rates. This would enable the removal of
all environmental conditions
separate dedicated systems such as avionic bus
recorders and engine monitoring units. COTS hardware with short delivery
times
The resulting system was more compact and less
complicated making it easier to setup, install and Reduces Cost of Ownership
Reduced inventory of spares due
remove.
to common product line
Embraer installed three sub-systems – a ‘big and Lower installation, setup and
slow’, a ‘high-speed’ and an ‘optional’ third system. maintenance requirements
Modular design greatly extends
• The ‘big and slow’ system consists of 18 chassis system lifetime
with all parsed data (PCM) being sent by
telemetry. FTI by Design
Designed to minimize the data
• The high speed system acquired data up to a transfer time from sensor to screen
rate of 8Ksps from accelerometers and strain Guaranteed predictable data
gauges.
Simultaneous sampling occurs
across the complete system
• The third system consisted of four chassis and
was used to capture additional bus data.
COMMERCIAL
OFF-THE-SHELF DESIGN

3. The Results I
Lower risk and future proof solution for FTI campaign
and subsequent aircraft development programs
• CWC-AE’s ability and commitment to develop backward
compatible modules to accommodate future bus
technologies was vital to ensure a future proof system.
• Developing a consistent core product line, rather than a
program orientated approach, lowers risk with long term
support and development. “ We wanted a system we could
trust to produce reliable data
for the entire lifecycle of an “
• A key requirement was a system Embraer could trust to aircraft as well as for future
produce reliable data for the entire lifecycle of an aircraft. developments.
An example of this was how a single Acra KAM-500 system
Domingos Henrique Beolchi Rios
was able to deliver the same data in both PCM and Flight Test Engineer
Ethernet streams simultaneously to satisfy certification Embraer
needs.
MODULAR & REUSABLE
LONG TERM SOLUTION

4. The Results II
A 30% reduction in bandwidth through
packetization and iNET-X technologies
• Using aperiodic transmission with the iNET-X protocol
reduced avionics bus data bandwidth requirements
by approximately 30%.
• Achieved by eliminating the buses stale data and
removing the need to oversample the bus. “ We looked at three other
vendors but only
Curtiss-Wright were
• This effective strategy optimizes PCM bandwidth prepared to do the system
and facilitates additional data transfer for real-time the way we wanted it – as
“
data analysis. opposed to taking what
they had.
OPTIMIZED TELEMETRY
BANDWIDTH

5. The Results III
Saved time and money throughout the organization
Unifying the data acquisition and database structures across
multiple platforms and teams saves time and cost by
reducing
• Training
• Data conversion
• Operational requirements
Full authority and control over the acquired data, without
the involvement of a third party, ensures it can be
distributed to any department without delay.
This kind of effort has many long term benefits as it can be
exploited over many years through different programs.
FASTER
DATA ACCESS

6. For more information visit
www.cwc-ae.com
Curtiss-Wright Controls Avionics & Electronics
cwc-ae@curtisswright.com
665 North Baldwin Park Boulevard Landscape House, Landscape Road
City of Industry, CA 91746, USA Dublin 14, Ireland
Phone: 626-851-3100 Phone: +353-1295-1264