At 65 mph, your tires can lose total contact with the road. Of
course, your car can begin to hydroplane at slower speeds if your tire tread and pressure
are not at the proper levels
For airplanes a hydroplaning speed can be calculated (roughly 8.6 times the square root of the tire pressure) but it is not as simple for cars. If you have bald tires, the speed will be lower, if you have good wet traction tires with "aqua channels" it will be higher. In all cases, if you know you are going to drive over 2" of standing water, slow down.
That depends on many factors that you haven't included. What surface (gravel, dirt, asphalt, concrete)? What condition (dry, wet, icy, snow)? Is the question related to starting from a dead stop, cornering, stopping, hydroplaning, etc? Front wheel drive or rear wheel drive? weight of the vehicle? Age and condition of the tires?
Whether expensive or cheap, all tires are a worthwhile investment, as well as a necessity. They improve the functioning of our vehicles by providing a gripping surface that allows for better braking and traction and making for over all improved steering. Cheap tires may simply mean the price of the tire to one person, but to another, it may mean the quality, the amount of tread, or the speed rating. In order to make a cheaper set of tires work, you must first decide what your individual needs are and locate the tires for your needs. Replacing worn tires affects your safety, traction, handling and gas mileage.ConsiderationsTraction is the most important factor when selecting a tire. The best traction comes from a grade A tire, which will allow for the best braking. These will offer better performance if you live in an area that receives a lot of wet weather. A drier environment produces overall less need for sudden braking, therefore grade B tires would probably perform well. The speed rating of a tire is also important. If your usual top speed is high, then you will need to purchase tires with a higher speed rating. Most people tend to buy tires that are rated higher than they actually need. The warranty or guarantee that is offered on a tire is an important aspect of the process. Individual dealers will explain this to you if you ask.Where to LookEach option of where to buy your tires has advantages as well as disadvantages. You can buy direct from a manufacturer’s showroom, visit a local dealership or warehouse, visit different auto parts stores, and even shop online. Most all of these will give you proper information and enough guidance to help you make the best inexpensive purchase for your needs. Always remember to check and see if the total price includes mounting and balancing as this is necessary when placing new tires on any vehicle. Choosing a local more familiar source may give you a more personal touch. They often install the tires the same day of purchase and mount and balance them for free. The cheap tires on line may cost less and offer a larger selection but you generally must pay the shipping and handling. Upon arrival of the tires you are still responsible for the expense of having the tires mounted and balanced.
The 2000 Cadillac traction control module can be found on each wheel. There is a total of four traction control modules.
The total surface area! The total surface area! The total surface area! The total surface area!
120
240
120
Actually according to Cal. Specs, In heavy rain, the "common" car will hydroplane at a speed of 35 MPH, regardless of surface type. AnswerThere are simply too many variables to this scenerio to properly answer this question. It depends on the total weight of the vehicle, including all the items and people in the car. It also depends on the condition of the shocks, struts, entire suspension system, along with the condition of the tires. It would also matter what kind of road surface it was, blacktop or concrete, rough or smooth. It would matter how much water was on the road as well. The vehicle's safety equipment, like anti-lock brakes, or electronic traction assist would also make a difference. But the biggest variable in all this, would be the skill of the driver. So there is no set answer for this question. Too many factors to consider I agree. The type of tire really has more effect on this than speed. But there are too many variables to say exactly what speed a CAR WILL HYDROPLANE AT. loquin: The FAA has done a lot of testing in this area. What their experiments showed is that the speed at which hydroplaning COULD occur is dependent upon the air pressure in the tires of the moving vehicle. The actual calculation is V = 9 * sqrt(P) where V is the velocity at which hydroplaning could occur, and P is the air pressure, in PSI, in the tires. So, for a car with 35 PSI in the tires, the speed at which hydroplaning could occur is a bit over 53 miles per hour. Now, tread in the tire can help channel water out from under the tire, to raise the hydroplaning speed some. Note - this calculation is valid for puddles of water, and NOT for deeper water, where the water level is more than about an inch. I'm not surprised that the state quotes a lower speed - just to be on the 'safe' side; if the car in question has a lower air pressure in the tires, it will hydroplane at a lower speed. You could drive a car with 15 PSI in the tires for a while, and 15 psi, plugged into the above equation, yields a shade under 35 mph...
If only total distance and total time are considered, the speed calculated (total distance / total time) is the average speed of the entire trip.
Average Speed = Total Distance / Total Time
the total surface area of a cubic centimetre