Ripsaw (vehicle)

The Ripsaw is a developmental unmanned light tank designed and built by Howe & Howe Technologies for evaluation by the United States Army. It is able to accelerate to 60 mph in about 4 seconds.

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.

Variants
To date, multiple prototype variants of the Ripsaw exist:
 * 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.