JED - November 2016 - 26

US Rotorcraft ASE Tackles Incre

B

By John Haystead
Both the US Army and the US Navy have
made major improvements and upgrades
to the aircraft self-protection equipment (ASE) systems protecting their
rotary-wing fleets. Both Services recognize, however, that there is still work
to be done, particularly in providing for
a more fully-integrated system capability addressing multiple threat types,
compiling and clearly presenting comprehensive threat information for flight
crews and providing assured and effective automated responses to immediate
threats.

US ARMY MISSILE WARNING UPGRADE

The Journal of Electronic Defense | November 2016

26

The AN/AAR-57(V) Common Missile
Warning System (CMWS) is the Army's
standard system for protecting its rotary-wing aircraft from IR-guided missile
threats. Built by BAE Systems (Nashua,
NH), the UV-sensor-based system incorporates an electronic control unit (ECU)
to manage threat warning functions
and the automatic dispensing of flare/
chaff countermeasures.
In 2014, the Army fielded a new
"Gen 3" ECU system processor that
provided increased processing power for
expansion of the system's threat data
base, as well as the addition of a software-based hostile fire indication (HFI)
capability.
The CMWS's initial "Juliet" configuration software capability drop for the
Gen 3 ECU processor, which enables
the system to serve as a bus controller
- correlating and deconflicting threat
information from the IR, RF and laser
warning capabilities onboard the aircraft and providing for a single threat
icon on the display screen - was
delivered for the Army's
CH-47F Chinook helicopters in 2015.
Since then, says
BAE's CMWS Product
Line Director, Mark Altvater, the software has been
continuously updated to interface to
all of the Army's other helicopter plat-

forms. "We're currently at the Juliet-F
version, which speaks to the modularity of the design where we can add and
interface to different platforms without changing huge amounts of code."
BAE Systems has now developed the
"Kilo" full-material-release version of
the software that is expected to complete internal qualification and testing by the end of 2017. Says Altvater,
"This is a major algorithm update that
provides for our full-threat requirement
and is expected to be fielded after 2018."
To date, BAE Systems has delivered
1,894 Gen 3 ECUs, and, according to Altvater, the company is on track to deliver
an additional 141 units this year. "Having delivered the entire US requirement
[covering approximately 1600 aircraft
for the Army with the divestiture of the
Kiowa fleet], we're looking at FMS [foreign military sale] sales going forward,
look-

ing at between 100-200 FMS systems per year.
We've currently delivered to roughly 15
countries and expect this to reach 20
countries by the end of next year."
BAE Systems has also been working
through the Army's Communications
Electronics Research & Development
& Engineering Center (CERDEC) Intelligence and Information Warfare Directorate (I2WD) at Aberdeen Proving
Ground, MD, to develop and test an
enhanced UV (EUV) sensor
for the CMWS system intended to provide significant improvements
in sensitivity, dynamic
range and missile warning range. Says Mike Sweeney,
Technical Director for the company's
Threat Management Solutions Product

Line, "the work showed that
you could make improvements
in sensitivity by making upgrades to the existing sensor.
So, we were able to upgrade the
sensor's sensitivity while maintaining a low false-alarm rate as well
meet aircraft interface and size, weight
and power (SWAP) considerations. We're
continuing to work with CERDEC on other improvements. For example, CERDEC
has released an RFI seeking information on applying lower-TRL technologies
that could help solve the threat warning
problem, so we've looked at that also and
have come back with potential solutions
that support them as they go forward."
Currently, laser warning for Army
rotorcraft is provided by the AVR-2B
system built by UTC Aerospace Systems
(Danbury, CT). The CMWS Gen 3 accepts data from this system and passes
it up to the cockpit. Although Sweeney
says the Army has looked at a fullyintegrated laser warning capability for
the CMWS, "to date there really hasn't
been a requirement to merge the detectors into one LRU. The Army has their
CMWS and their AVR-2s and they work,
and so I think the Army is looking to
future timeframes for potentially bringing these things together."
The Army has also shown interest in
integrating an acoustic sensor into the
CMWS to assist in determining hostile
intent through tighter definition of
miss-distance around an aircraft. Altvater says BAE Systems currently has
"some contracts with US customers for
acoustic sensors that we're qualifying as
we speak. We completed our FAA qualification earlier this year and are now
moving on to our full-mil qualification,
which we expect to complete this year.
We've shown the benefit of the capability and people are interested, but budget concerns are also a factor."

NAVY CHANGES COURSE
The Navy has also been upgrading
the missile warning capabilities of its



JED - November 2016

Table of Contents for the Digital Edition of JED - November 2016

The View From Here
Conferences Calendar
Courses Calendar
From the President
The Monitor
World Report
US Helicopter EW Programs
53rd Annual AOC International Symposium and Convention Guide
Conference Report
Threat Monitor
EW 101
AOC News
Index of Advertisers
JED Quick Look
JED - November 2016 - cover1
JED - November 2016 - cover2
JED - November 2016 - 3
JED - November 2016 - 4
JED - November 2016 - 5
JED - November 2016 - The View From Here
JED - November 2016 - 7
JED - November 2016 - Conferences Calendar
JED - November 2016 - 9
JED - November 2016 - Courses Calendar
JED - November 2016 - 11
JED - November 2016 - From the President
JED - November 2016 - 13
JED - November 2016 - 14
JED - November 2016 - The Monitor
JED - November 2016 - insert1
JED - November 2016 - insert2
JED - November 2016 - 16
JED - November 2016 - 17
JED - November 2016 - 18
JED - November 2016 - 19
JED - November 2016 - 20
JED - November 2016 - 21
JED - November 2016 - 22
JED - November 2016 - 23
JED - November 2016 - World Report
JED - November 2016 - 25
JED - November 2016 - US Helicopter EW Programs
JED - November 2016 - 27
JED - November 2016 - 28
JED - November 2016 - 29
JED - November 2016 - 30
JED - November 2016 - 31
JED - November 2016 - 32
JED - November 2016 - 33
JED - November 2016 - 34
JED - November 2016 - 35
JED - November 2016 - 36
JED - November 2016 - 53rd Annual AOC International Symposium and Convention Guide
JED - November 2016 - 38
JED - November 2016 - 39
JED - November 2016 - 40
JED - November 2016 - 41
JED - November 2016 - 42
JED - November 2016 - 43
JED - November 2016 - 44
JED - November 2016 - 45
JED - November 2016 - 46
JED - November 2016 - 47
JED - November 2016 - 48
JED - November 2016 - 49
JED - November 2016 - 50
JED - November 2016 - 51
JED - November 2016 - 52
JED - November 2016 - 53
JED - November 2016 - 54
JED - November 2016 - 55
JED - November 2016 - 56
JED - November 2016 - Conference Report
JED - November 2016 - 58
JED - November 2016 - 59
JED - November 2016 - Threat Monitor
JED - November 2016 - 61
JED - November 2016 - 62
JED - November 2016 - EW 101
JED - November 2016 - 64
JED - November 2016 - 65
JED - November 2016 - AOC News
JED - November 2016 - 67
JED - November 2016 - 68
JED - November 2016 - Index of Advertisers
JED - November 2016 - JED Quick Look
JED - November 2016 - cover3
JED - November 2016 - cover4
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