Apps by Charles Russell

Minimum Speed Calculations 3.1

PAID
Calculates the Minimum Speed/Velocity of a vehicle that is skidding/decelerating based on its skid distance, braking efficiency, roadway grade and the vehicle s final/impact velocity. Calculations are completed in fps and mph when using the...

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Momentum360 2.0

PAID
The Momentum 360 application allows the collision investigator to determine vehicle velocities in two vehicle collisions utilizing the conservation of linear momentum based on: Vehicle Weights (masses) Approach and Departure Headings and Any...

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SFSTest 1.3

PAID
The SFST Application is an application designed to assist Officers with administering the Standardized Field Sobriety Test when stopping a driver suspected of driving under the influence. The SFST Application has 4 basic views. The first allows the...

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Searle 1.2

PAID
The Searle Equation Application determines the speed of the pedestrian as a result of being struck by a vehicle (the approximate vehicle impact velocity) based on the pedestrian s throw distance and take off angle. If the vehicle and pedestrian...

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Critical Speed 1.1

PAID
The Critical Speed Application allows the investigator to determine the critical speed of a vehicle that has entered a yawl. The speed calculations are based on the radius that is derived from the chord and middle ordinate obtained from one of the...

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Time Distance 1.0

PAID
The Time Distance Application allows the Collision Reconstructionist to complete a full time distance analysis in a vehicle-to-vehicle collision. The application is designed to perform time distance calculations in a typical path intrusion scenario...

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StiffCoeff 1.0

PAID
The Stiffness coefficient application calculates b1, A, B and G stiffness values from the NHTSA Crash Test database for frontal barrier crash test. The stiffness values produced by this application are derived directly from the NHTSA database, though...

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DragSled 1.0

PAID
The Drag Sled Application is designed to calculate the coefficient of friction of the roadway when using a drag sled. The user simply enters the sled weight, roadway grade, and up to 10 test pulls. As the test pulls are entered into the application...

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Velocidad mínima Español 1.0

PAID
Spanish Language version of the Minimum Speed Application. Calculates the Minimum Speed/Velocity of a vehicle that is skidding/decelerating based on its skid distance, braking efficiency, roadway grade and the vehicle s final/impact velocity....

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