BOH product sheet (pdf) - Saab
BOH product sheet (pdf) - Saab
BOH product sheet (pdf) - Saab
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<strong>BOH</strong> - POD WITH<br />
CMDS AND MAW
oH<br />
<strong>BOH</strong> - ADVANCED MISSILE THREAT DETECTION<br />
AND COUNTERMEASURES CAPABILITY<br />
<strong>BOH</strong> is a highly effective countermeasures<br />
self protection pod for use<br />
on any fixed wing aircraft. <strong>BOH</strong> provides<br />
covert sustainable pre-emptive<br />
dispensing, missile warning, forward<br />
firing of flares and cocktail dispensing.<br />
All these capabilities have been incorporated<br />
into the form-factor of a missile<br />
utilizing the well established AIM-9<br />
Sidewinder and AIM-120 AMRAAM<br />
interfaces and characteristics for lean<br />
aircraft integration.<br />
EFFECTIVE DECOYS<br />
TECHNICAL DESCRIPTION<br />
<strong>BOH</strong> is an implementation of the <strong>Saab</strong> BOL<br />
Countermeasures Dispenser System (CMDS)<br />
and Compact Integrated Defensive Aids Suite<br />
(CIDAS) into the shape of a missile.<br />
The <strong>BOH</strong> is modular and can be arranged in<br />
a multitude of configurations. The building<br />
blocks are: MAW, pyrotechnical dispenser,<br />
controller, laser sensor and electromechanical<br />
dispenser modules. The countermeasures<br />
dispensing is characterized by providing long<br />
duration pre-emptive dispensing capability<br />
with the BOL dispenser as well as forward<br />
firing flare capability with the BOP dispenser<br />
and it is designed to defeat all modern<br />
IR-guided threats. The dispensers cater for<br />
highly effective flare cocktail capability. The<br />
dispensing system also caters for highly effective<br />
chaff dispensing.<br />
The <strong>BOH</strong> pod can be mounted on any missile<br />
launcher capable of launching AIM-9<br />
Sidewinder or AIM-120 AMRAAM type of<br />
missiles. The <strong>BOH</strong> has mass properties of an<br />
AIM-9 Sidewinder.<br />
Pyrotechnically dispensed propelled flare Electromechanically dispensed chaff Electromechanically dispensed<br />
pyrophoric material (IR)<br />
No. 218 K7 Type 1 propelled flare BOL Chaff BOL IR
oh<br />
MAJOR COMPONENTS<br />
EWC<br />
The Electronic Warfare Controller (EWC)<br />
hardware and software performs the following<br />
independent functions;<br />
• Defensive Aids Control<br />
• Missile Approach Warning Analysis<br />
• Decoy Dispensing<br />
MISSILE APPROACH WARNING<br />
FUNCTION, MAW-300<br />
The module consists of 2 MAW-300 sensors<br />
interfacing with a processing card in the<br />
EWC. Each sensor is an optical staring sensor<br />
that reports the azimuth, elevation and amplitude<br />
characteristics of the most prominent<br />
UV sources in its Field Of View (FOV) to the<br />
EWC. Each sensor has a 110 degrees conical<br />
FOV. The EWC performs the Built-In-Test<br />
control and management of the MAW sensors.<br />
The MAW analysis consists of dedicated<br />
hardware and software functions that receive<br />
the processed data from the sensors. Tracks<br />
are formed from the sensor data and are<br />
evaluated based on their temporal irradiance<br />
and spatial modulation characteristics. If the<br />
GPS<br />
MAW Magazine<br />
track is classified as an emission originating<br />
from a missile on a converging flight path,<br />
a MAW alarm is issued. Missile alarms are<br />
transferred to the Defensive Aids Controller<br />
for display and countermeasures management<br />
purposes.<br />
DEFENSIVE AIDS CONTROL FUNCTION<br />
The Defensive Aids Controller performs<br />
the high level integration, management and<br />
control of the sub systems as well as external<br />
interfacing to the avionics systems. Alarm<br />
data is received from the aircraft warning sub<br />
system. Weapon systems matching and management<br />
is performed based on the User Data<br />
File (UDF) data. Control unit outputs are<br />
generated and countermeasures responses are<br />
assigned based on weapon system identification<br />
and priorities as defined in the UDF. A<br />
central data record function is also managed<br />
by the Defensive Aids Controller.<br />
DECOY DISPENSING FUNCTION<br />
The decoy dispensing function consists of<br />
dedicated hardware and software functions<br />
that interface to and manage the pyrotechni-<br />
Electronics Unit for<br />
Pyrotechnical Dispenser EWC<br />
cal BOP and electromechanical BOL dispensers.<br />
Countermeasures patterns and sequences<br />
are stored and initiated via Defensive Aids<br />
commands. Payload data, mode data and dispensing<br />
data are transferred to the Defensive<br />
Aids Controller for display purposes.<br />
COUNTERMEASURES DISPENSER, BOP<br />
The BOP is a light weight pyrotechnical dispenser<br />
holding 30 1”x1” or 15 2”x1” standard<br />
8” long payloads, also US Navy round formfactor<br />
payloads can be accomodated. The<br />
dispenser is fully integrated with the EWC<br />
functionality and provides for misfire detection<br />
and compensation, intelligent magazine<br />
recognition and quick loading.<br />
The minimum time between two firing pulses<br />
from a single BOP is 10 ms.<br />
BOL DISPENSER<br />
The BOL is a light weight electromechanical<br />
dispenser holding 160 BOL-chaff or BOL-IR<br />
payloads. The dispenser is fully integrated<br />
with the EWC functionality and provides<br />
quick loading thanks to its unique built-in,<br />
tool-less locking mechanism.<br />
Safety Pin Unit BOL<br />
Alternative Sensor
AIRCRAFT INTERFACE<br />
GENERAL<br />
<strong>BOH</strong> is designed to interface with any missile<br />
launcher. The mass and center of gravity<br />
properties are similar to those of an AIM-9<br />
Sidewinder missile and aerodynamic properties<br />
are similar to those of an AIM-120<br />
AMRAAM missile.<br />
The <strong>BOH</strong> can be integrated with MIL-<br />
STD-1553 or RS-485 data links to adapt to<br />
other displays and control means. To further<br />
simplify integration, wireless technology can<br />
be used.<br />
MODES OF OPERATION<br />
The <strong>BOH</strong> has the following dispensing modes:<br />
• AUTOMATIC<br />
• SEMI-AUTOMATIC<br />
• MANUAL<br />
Manual initiation of dispense programs can be<br />
performed at all times.<br />
Backup dispensing can be performed based<br />
on a graceful degradation philosophy, should<br />
parts of the system fail.<br />
DATA<br />
• Probability of Warning, POW, is >99 %,<br />
provided the threat is within the field of view<br />
coverage of the front mounted MAW module.<br />
• Response time, time to impact, has been<br />
optimized for the use of reactive pyrotechnic<br />
countermeasures while maintaining a low<br />
false alarm rate.<br />
• Data logging is provided for through recording<br />
of processed declared missile events,<br />
built-in-test and inertial navigation data.<br />
• Countermeasures dispensing: The forward<br />
module BOP pyrotechnical dispenser is oriented<br />
with a depression angle of 40 degrees<br />
firing downward/forward. The rear part of<br />
the <strong>BOH</strong> houses the BOL electromechanical<br />
dispenser releasing the payload aft into the<br />
slipstream of the aircraft.<br />
Specifications subject to change without notice<br />
www.saabgroup.com<br />
HUMAN MACHINE INTERFACE, HMI,<br />
AIRCRAFT OPERATOR LEVEL<br />
• MAW generated THREAT ALARMS can be<br />
indicated on displays.<br />
• BUILT-IN-TEST results are indicated on<br />
aircraft displays and on a built-in indicator<br />
on the <strong>BOH</strong> maintenance panel while on the<br />
ground.<br />
• REMAINING LOAD can be indicated on<br />
displays.<br />
• JETTISON. It is possible to jettison all remaining<br />
pyrotechnical load from the <strong>BOH</strong> pod.<br />
GROUND SUPPORT<br />
• The <strong>BOH</strong> pod has a Ground Support Interface<br />
that provides the ground crew with builtin-test<br />
and power indications, ground based<br />
end-to-end testing, initiated built-in-test and<br />
an Ethernet based data port.<br />
• A Chaff Flare Test Block (CFTB) emulating<br />
a loaded magazine can be used for ground<br />
testing of the BOP dispenser.<br />
• A Zero Volt Tester can be used to make sure<br />
no voltage is on the BOP dispenser during<br />
loading.<br />
<strong>Saab</strong> AB Tel +46 8 580 840 00<br />
Electronic Defence Systems Fax +46 8 580 322 44<br />
SE-17588 Järfälla info@saabgroup.com<br />
Sweden<br />
CONTROL OPTIONS<br />
The <strong>BOH</strong> pod provides for future growth<br />
in terms of aircraft interface using MIL-<br />
STD-1553, RS485 data links and discrete<br />
signals. Also, wireless technology can be<br />
utilized. The pod can therefore interface to<br />
virtually any display or control means.<br />
THE WORLD IS AN EVER-CHANGING PLACE AND OUR FIELD<br />
IS DEFENCE AND SECURITY. WE PUSH BOUNDARIES<br />
SEEKING NEW AND BETTER SOLUTIONS.<br />
WE STRIVE TO ANTICIPATE TOMORROW.<br />
• A Tool to Generate User Data Files, e.g.<br />
dispensing program, can be used to adapt to<br />
mission characteristics.<br />
• A Data Loader tool can be provided to<br />
upload to the pod User Data Files containing<br />
e.g. dispense programs.<br />
• A tool for Post-Mission Analysis, e.g. mission<br />
flight route, inertial navigation data, threat<br />
data, dispensing activities, can be used to<br />
analyze recorded mission data.<br />
• 3-in-1 Flight Line Tester, to stimulate MAW or<br />
laser sensors.<br />
Doc id: P-300128 - eng. - ver. 2 - September 2012