Ripsaw (vehicle)

Ripsaw
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Type	Light tank
Place of origin	United States
Service history
Used by	United States Army
Production history
Designer	Howe & Howe Technologies
Manufacturer	Howe & Howe Technologies
Unit cost	250,000
Produced	2009-present
Variants	MS1 (unmanned), MS2 (driver optional)
Specifications
Weight	9,000 lbs
Height	70 in
Armor	None (aluminum frame)
Engine	6.6 duramax diesel 750 hp
Power/weight	1000 ft/lbs
Payload capacity	2,000 lbs.
Suspension	16 in. Travel
Ground clearance	24 in
Speed	95 Mph

The Ripsaw is a developmental unmanned light tank designed and built by Howe & Howe Technologies for evaluation by the United States Army.

The Howe brothers started the Ripsaw as a small family project in 2000. They introduced it at a Dallas vehicle show in 2001, where it caught the interest of the U.S. Army. Later that year the U.S. Military ordered a prototype MS-1 to be made and shipped to Iraq.

The Ripsaw is intended to perform various missions including convoy protection, perimeter defense, surveillance, rescue, border patrol, crowd control, and explosive ordnance disposal. For perimeter defense or crowd control, a belt of M5 Modular Crowd Control Munitions (MCCM) can be mounted around the vehicle to break up crowds or non-lethally engage personnel with flash-bang effects and rubber bullets. Multiple cameras provide 360-degree coverage for situational awareness for the operator.

The Army has tested the Ripsaw while remote-controlled by a soldier in another armored vehicle up to 1 km (0.62 mi) away. Its weapon system is modified to fire remotely using the Advanced Remote Armament System (ARAS), a gun that self-loads its own ammunition and can swap out various types of ammunition, such as lethal and non-lethal, in just a few seconds. These capabilities allow manned vehicles to send the Ripsaw out in front of them and engage targets without exposing soldiers to threats.

Variants

• Ripsaw UGV (non-militarized) prototype could accelerate to 65 mph in about 3.5 seconds, since it was lighter, but it wasn’t as strong/rugged.
• Ripsaw MS1 tactical UGV utilizes a powerful oversized and customized 650-horsepower Duramax 6.6L V8 diesel engine that delivers 900 ft-lbs (~ 1,220 Nm) of torque. The Ripsaw MS1 was a test platform made to test off-road capabilities. It was exclusively unmanned, cost $200,000 and could accelerate from 0-65 mph in 3 seconds.
• Ripsaw MS2 UGV is made to be larger, faster, and more modular than the MS1. It weighs 4.5 tons and can carry a one-ton payload. The lightweight tubular chassis design is powered by a 6.6 liter duramax diesel engine generating 600 hp and 1000 ft/lb of torque. Fully loaded, the MS2 can accelerate from 0-50 mph in 5.5 seconds and has a top speed of 60 mph. The vehicle can traverse 50 degree gradients and 45 degree slopes. It can be optionally manned or tele-operated from a nearby command vehicle. Armament can include an M240 machine gun or M2 .50-caliber machine gun, and it has been tested with the Javelin missile. If the Ripsaw is damaged or destroyed, parts can be "cannibalized" in the field and re-assembled quickly. An MS2 vehicle costs $750,000.
• Ripsaw MS3 UGV is being tested by RDECOM under the Remote Armed Maneuver Platform (RAMP) initiative to integrate the M153 CROWS remote weapon system onto an unmanned vehicle. RAMP was demonstrated at Fort Benning, Georgia in October 2013 as part of the Army's Armed Unmanned Ground Vehicle (AUGV) program.

See also

• Black Knight (vehicle)
• Gladiator Tactical Unmanned Ground Vehicle
• Unmanned Ground Combat Vehicle
• Wiesel AWC (45 mph fast, manned armoured tracked weapons carrier)