These
small UAVs were tested in combat by the units from 82nd Airborne
division, demonstrating good results. The current version is implementing
the feedback from the troops and lessons learned during these operations.
ARA's latest version of the micro UAV is the Nighthawk. Utilizing
the same folding wing method used in previous models,
NightHawk
is ready to fly as soon as it is pulled from its container. The
range of the current version is increased to 10-15 km, and flight
duration extended to 70- 90 minutes cruising at speed of 18 –
35 knots. The air vehicle, constructed from tough, lightweight carbon
fiber airframe and flexible wings, which can be folded around its
fuselage, allowing the entire UAV to be stored in a small tube.
When pulled out of the tube, the folded wings automatically snap
into place. It weighs only 1.6 lbs and has a wing span of 26 inches.
It is designed to operate at an altitude of 200 – 500 ft above
ground level, at elevations up to 11,000 ft above sea level. NightHawk
can be launched by hand toss, from standing, sitting, prone position
or from moving vehicles. To ease tracking, NightHawk is equipped
with a remotely controlled visible/IR strobe.
Nighthawk is can be carried as an 'assault pack', weighing only
15 lbs. It is equipped with a modular payload comprising a forward
looking daylight camera, low-light camera or side looking thermal
sensor. Each system comprises two aerial vehicles contained in storage
tubes, carried on the sides of a standard ALICE backpack. The ground
control unit utilizes a Panasonic Toughbook laptop loaded with the
GCU software and communications kit.
The
first generation of the system, known as TacMav, was developed to
meet the requirements of special operations command. TACMAV system
includes three aerial vehicles, modular payloads, and ground control
unit and communications equipment. The MAV has a cruising speed
of 80 kph. The first generation was a 50 cm long miniature drone
with a wing span of 53 cm. First generation TACMAV used a payload
pod containing two color CCD cameras and a video transmitter, weighing
only 40 gram. The total payload capacity of the TACMAV is 80 gram.
The user could select forward or side looking camera. 15 frame "snapshots"
can be used to recorded target of interest. The battery operated
vehicle has an endurance of 30-50 minutes, using rechargeable lithium
polymer cells. Higher capacity cells were also considered, extending
the mission twofold. The GCU is running standard Air Force Portable
Flight Planning System (PFPS) interface for mission planning, supporting
pre-flight planning, in-flight updates and manual control.
In November 2007 Irvine Sensors and Applied Research announced
plans to upgrade the Nighthawk's payload packageusing Irvine's proprietary
thermal and visible cameras. The two companies also plan to modify
the Nighthawk to enable tube launching, facilitating operations
from vehicular platforms. The command and video datalinks are also
to be improved introducing secure wireless transmission. The two
companies are cooperating to pursue business opportunities with
US MC and Army, as well as other applications and services. Under
the teaming arrangement, Irvine Sensors will act as prime contractor
for contracts involving Nighthawk-based applications for use on
U.S. Army and U.S. Marine Corps mounted combat vehicles, with Applied
Research serving as subcontractor. For other applications, the roles
will be reversed. 