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# Rccc2012 Part2

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Part 2 in the series - RC Car Acceleration versus Time and handy Calculators

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### Rccc2012 Part2

1. 1. RC Crew Chief 2012 PART 2 Car Acceleration versus Time and RC Car Property Calculators
2. 2. RC Crew Chief 2012 Acceleration page – Simulates straight line acceleration and allows performance comparison of two cars side by side. Time to distance results summary Simulation results displayed in graph form Data input area for Cars 1 and 2
3. 3. Acceleration Page- Data Entry Enter car speed at start of simulation and total run time Car1Properties Motor, battery and ESC are fixed, gear ratio may be changed. Car2 Properties Select different motor, battery, ESC or Gearing Aero and mechanical constants For this example both cars have the same components and only the gearing is different.
4. 4. Acceleration Page- Results Graph Simulation results for acceleration, speed, distance and motor current displayed for each car. Click on a graph to get a larger view
5. 5. Acceleration Page – Large Graph Click on one of the four graphs to get a larger view. In this case motor current versus time Note that Car1 is drawing about 4 amps (20%) more than Car2 due to the lower gearing.
6. 6. Acceleration Page – Time to Distance Select Time intervals to display results At 1.5 seconds Car1 is .72 m (2.4 feet) ahead of Car2.
7. 7. RC Crew Chief Calculators Enter static wheel weights to get front-rear and left-right CG location Centre of Gravity (CG) Calculator Raise the rear of the car and measure the total weight on the front wheel to get the CG Height
8. 8. RC Crew Chief Calculators Enter three simple dimensions Coil Spring Rate Calculator
9. 9. RC Crew Chief Calculators Enter four dimensions to get ARB rate Anti-Roll Bar (ARB) Stiffness Calculator
10. 10. RC Crew Chief Calculators Gear Ratio Calculator Wire Resistance Calculator
11. 11. RC Crew Chief 2012 <ul><li>Next slide series will look at the Motor, Chassis, Battery and ESC Managers. </li></ul><ul><li>Beta testing has started. </li></ul><ul><li>Stay tuned!!!!!!! </li></ul>