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07.24.2009, 01:00 AM
lets say for example, the final gear ratio is 1 motor revolution is equal to 10 wheel rotations. if you want to get moving from a stop, it is hard on the motor, but once you are moving along its alright. this is because newtons law of inertia states that an object in motion wants to stay in motion, and a nonmoving object wants to stay non moving. when wanting to stop, the motor wants to stop those wheels from spinning, while the inertia of the car wants to keep the wheels rolling. this is where the wheels can easily overpower the motor, because of that 1:10 ratio.
All the clues fit here. you're geared to the moon, and have big big wheels on there. This means it is hard to get the vehicle moving 1. because of the high gear ratio and 2. the additional rotational mass. once moving, the rustler is really trucking. it flies. all because it is already moving, and wants to keep moving. it doesn't want to stop because the motor cannot easily change the speed of the wheels(due to tall gearing) and the foward and rotational inertia wants to keep moving.
In the R/C world, this equals more amps being pulled to change speeds. when it is too much for the motor or speed conroller or batteries, they will start to fail. So while it may be fun and fast, it may not be for long. if you want to keep the high speed shenanigans, I would highly suggest investing in a medusa or neu motor. The mamba motors of this size are not very good, while a neu or medusa can give you more torque, speed, and efficiency.
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