If feet, there are 5,280 feet in a mile?) Q: And there are 1760 yards in a mile? (The witness is using yards here. You would agree that at 30 mph a vehicle is traveling at 2 miles per minute. Q: Then you have to close in and underscore how the defendant is contradicting himself/herself the court has taken judicial notice of how far vehicles can travel over time at given speeds. Q: How long was it until impact after you saw the vehicle? You can't even offer an estimate?Ī: I don't know. Q: When you saw the Plaintiff, how far away was he from your vehicle?Ī: I'm not sure. Why? Because the longer a visual estimation takes, the slower the vehicle must have been traveling. This typically works to the victim's advantage, particularly with respect to speed. The range of responses is laughable and this is what lawyers get from fact witnesses. You can also figure this out by just asking someone to estimate how many feet a vehicle travels in one second while driving 65 mph. In one study, participants who viewed a thirty second event gave an average estimated duration of 150 seconds, 500% longer than it actually took. So you need to be able to calculate how far a vehicle will travel in a second at any given speed.Īs any accident reconstruction textbook will underscore, people usually overestimate the time it took for a car accident to unfold. The second biggest factor in top speed is which battery is used.In a motor vehicle collision where the parties dispute liability, they usually are disputing the time, speed and distance of the vehicles.
This will illustrate how big of a difference it makes. We will take look at the same model with brushed, brushless motor and Nitro(glow) engine. Note: There is also gasoline but those cars are so rare and huge that I will not go into more detail about them. Power systems are divided into 3 main categories.
When using full power they either spin out or pop wheelies as shown in the video below. With the advent of brushless motors into the RC world many of the cars are so overpowered that the chassis can not handle the power. Most often it is the high and short monster trucks that have this problem. However more power does not always mean more speed if you can not put the power to the ground in a stable manner. Power system has by far the biggest impact on top speed. How Power System (ESC & Motor) Affects top speed There are many factors that decide the speed of a model and I will explain them in the following paragraphs. You may wonder why some of them have a top speed of 100 mph and others top out at 30 mph. Next I will list 27 examples of how fast can RC cars go. Today this is no longer the case as consistently all electric models outperform their nitro counterpart. Before lithium batteries and brushless motors you had only one choice if you wanted to go fast, that was NITRO. The average speed of an RC car has risen dramatically with the introduction of LiPo batteries and brushless motors. The following lists what factors affect top speed. You can expect the average top speed of a hobby grade RC car to be around 35 mph.