Addressing
the growing demand for tactical, medium altitude long endurance
(MALE) UAV platforms, Elbit Systems is unveiling a new 'mid-size'
platform called Hermes 900. Positioned between the successful
Hermes 450 and the long endurance Hermes 1500 twin engine craft,
the new Hermes 900 will weigh 970 kg (Maximum takeoff weight)
and a wingspan of 15 meters. While offering all Hermes 450 capabilities,
the new aircraft features larger multi-payload configurations
(up to 300 kg), higher flight altitude and extended flight time
without the need for external fuel tanks.

The Hermes 900 system supports numerous missions and specialized
applications such as electro-optics, IR imaging laser range
finder and laser designation as well as SAR/GMTI, Comint DF
and ELINT. The system maintains secured redundant Line of Sight
(LOS) data link as well as redundant a satellite communication
Beyond Line of Sight (BLOS). Initial Hermes 900 photos indicate
a clean wing configuration, and no indication of external stores
or weapons is given. However, given that Hermes 450 has such
capbility, it can be assumed that the '900 model can do the
same. In fact, a similar platform, such as the Predator
MQ-1A UAV can accomodate two mission paylaods (such as two
EOs balls or one EO ball and a SAR) in addition to four Hellfire
missiles or a pair of GBU-12s laser guided bombs.
Designed for maximum endurance, the aircraft uses retractable
gear to reduce drag. The wing has full length flaperons, optimizing
wing profile for different flight conditions and further economizing
flight economy and fuel consumption during the flight transition
phases. The Hermes 900 uses an IATOL (Independent Auto Takeoff
and Landing) system enables auto-landing even in alternate non-instrumented
runways. The nose can be configured to carry an integral satellite
communications terminal for missions beyond line of sight. Like
the Hermes 450, the new UAV features full redundancy and fault
tolerant avionics and electronics architecture. The Hermes 900
has outgrown beyond the power levels offered by the UEL rotary
engines powering the Hermes 450. The '900 model uses a more
powerful, fully-certified Rotax 914 100 hp engine. The new UAV
is well-equipped with advanced features including built-in autonomous
emergency procedures, ATC (Air Traffic Control) radio, radio
relay and IFF transponder.
Hermes 900 will have full compatibility the current Hermes
450, in mission control and support infrastructure. It is controlled
by Elbit Systems' UGCS (Universal Ground Control Station). This
enables control of two UAVs at any given time from a single
ground station (with allocation of two ground data terminals),
while a single operator operates the air vehicle and payloads
for each UAV.
