|
An established ITV platform is based on
a derivative of the M151 vehicle known as 'Growler', produced
by General Dynamics for a number of USMC missions requiring
airborne mobility. The Growler was designed either as transport
vehicle or 'pickup' style flat-bed for utility transport. One
of the most mature applications is the Expeditionary Fire Support
System (EFSS), for which the smaller utility vehicle version
of the Growler was selected to serve as a prime mover towing
the EFSS mortar, carrying its crew and basic ammunition load.
The Corps is expected to field the first EFSS unit by the end
of 2007. A stretched version of the Growler configured to carry
four fully equipped troops is proposed as a long range recon
and strike vehicle, self sustained on long missions extending
over 3 – 10 days. The vehicle can be equipped with a ring-mounted
weapon, such as an M2 machine gun or Mk19 automatic grenade
launcher and secondary M249 SAW.
Another
light tactical vehicle is proposed by the armored tactical vehicle
(ATV) manufacturer Polaris Defense. The company offers the Ultra
Light Tactical Vehicle with a 40 hp engine powered by gas or
JP8 fuel. This vehicle configured to carry a crew of four seated
side by side, is rated for payload capacity or towing of up
to 1,500 lbs. The rear flat bed can be configured to carry specialist
equipment such as combat recon, surveillance, sensors, or anti-tank
missiles (Javelin), ammunition, supplies and litter racks for
casualty evacuation.
A different transporter concept pursued by Lockheed Martin
is the Squad Mission Support System (SMSS), an optionally driven
robotic platform, based on high mobility ATV. SMSS weighs 4,000
lbs and has a payload capacity for up to 1,000 lbs of cargo.
It can travel about 100 miles on road, or half that range cross
country. The system has tele-operated, autonomous and supervised
operating modes.
At AUSA 2007 BAE Systems and specialty vehicle maker SRATS
unveiled their cooperation in transforming the militarized rock
crawler specialty vehicle into serially produced military vehicle.
SRATS which stands for "Specialized
Reconnaissance Assault and Transport System (SRATS)"
covered by Defense Update last year, was designed to excel in
extreme off-road driving conditions. These vehicles combine
commercial 'rock crawlers' and sand rail technologies, enabling
near vertical rock climbing or rubble field traverse (maximum
grade climb of 80%). The vehicle also has high acceleration
and speed, sustaining high speed chase or fast egress from a
hot target area. The first SRATS were completed last year (2006)
as 'proof of principle' vehicles for the US Defense Advanced
Research Projects Agency (DARPA), creating much interest among
special forces. The military was ready to order over 100 of
them, but then interest expanded beyond the special forces,
and the Army's Rapid Equipping Force (REF) is now interested
in producing thousands of these vehicles. This potential motivated
the small UTAH based SRATS company to approach BAE Systems to
team for the development and production of a new armored version.
Raytheon's
entry into the light strike vehicle field is also based on an
off-road racing and extreme rock crawler derivative. But Raytheon
decided to take innovation one step further introducing a powerful
hybrid electric drive system, with the all-terrain vehicle called
Hy-DRA (Hybrid Defense Recon Assault vehicle). The vehicle uses
a diesel engine to power a generator, driving four in-hub motors
for the four wheel drive. While moving in 'stealth mode' HyDRA
can achieve speed up to 35 mph. Otherwise, hybrid powered (diesel
and electrical) sustained speed top 125 mph. The hybrid electric
drive offers good fuel efficiency of about 35 mpg. The vehicle
can carry an M2 (0.50 Cal) or Mk-19 or minigun on a turret mount
and an M240/249 on a swing arm. The vehicle has a curb weight
of 2,400 lbs. carrying a crew of three, and a complement of
weapons and supplies, HyDRA is internally transported in a CV-22
Osprey, CH/MH-53, CH/MH-47 and C-130. It is capable of towing
1.5 tons or carrying heavy loads of up to half a ton. Besides
its role as primary propulsion for the vehicle, the four 40hp
motors can also perform as generators, providing 30 kW of power
for external use.
Other topics covered in this review:
|