"We have a position sensor at each wheel and a speed sensor for each side of the machine," added Jason Osborn, a design engineer who was heavily involved in the electronic development of the A220. "We have an onboard controller that knows exactly what angle and speed the wheels are turning at."When you flip the switch in the cab from AWS mode, the controller knows the wheels have to be in a certain spot to accomplish skid steering. It moves the wheels there and locks them in place. And in AWS mode it''s just the opposite, the controller knows that the wheels have to be allowed to turn to accomplish whatever steering the operator is trying to do."

Mapping by hand or heads-up digitizing from a good vantage point allows a GIS technical specialist to map the fire and see the surrounding terrain. Although this option isn''t the most accurate or desirable, it''s currently the fastest, safest method for getting decent maps into the hands of firefighters. Quick, accurate fire line maps are indispensable when allocating scarce resource while fighting wildfires, such as the October fire storms that devastated Southern California. Mapping is one of the principal benefits of GPS technology, which promises to make paper maps in awkward three-ring binders obsolete. At the Newport Beach (Calif.) Fire Department, firefighters need only look at their in-vehicle computer screen to find the exact location of fire emergencies.

The tool features a highly advanced composite housing that combines a double injection grip with contoured styling for unmatched comfort. Conveniently located are the power regulator and reverse mechanism for easy operator adjustments. Other features include a Duopact, clutch mechanism, handle exhaust, steel clutch housing, 360 degrees air inlet swivel and sensitive throttle control. Campbell Hausfield has introduced a 1/2 inch twin hammer impact wrench to its Extreme-Duty line of air tools. Designed for professional automotive and industrial applications, the twin hammer impact wrench, model PL2502, was engineered for quick removal and replacement of fasteners, tire rotation and engine rebuilds. This tool is capable of producing the highest level of power at 425 foot-pounds of torque. It produces 1,200 impacts per minute. Other features include a 1/2 inch square drive and an all-in-one adjustable power regulator that controls speed as well as forward and reverse action. The new Craftsman impact wrench features handle exhaust that routes exhaust away from both the user and the work surface. Provides torque range from 25 to 200 ft/lbs. with maximum torque of .260 ft./lbs. in reverse. It delivers 1500 blows per minute, yet weighs only 2.5 pounds.

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