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In aviation we use the square root of the tire pressure X 9 to get hydroplaning speed in knots. take times 1.16 for mph 48 year professional pilot In aviation we use the square root of the tire pressure X 9 to get hydroplaning speed in knots. take times 1.16 for mph 48 year professional pilot
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoHydroplaning happens when the tires are skating on a sheet of water because the tread cannot adequately remove water from the road surface. Therefore, it can happen at any speed. Tires with worn treads are more susceptible to hydroplane, and the risk increases with deeper water.
Wiki User
∙ 12y agoIt happens when there is standing water on the road and your wheels become unstable.
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What speed increment can make a difference between hydroplaning and not hydroplaning?
5 mph
Hydroplaning may occur when you drive over water?
yes
When driving what does water plus speed equals?
Water + speed equals to what ?
What is the formula for hydroplaning?
The formula that is used to compute hydroplaning speed is: Minimum total hydroplaning speed (knots) equals 9 times the square root of tire inflation pressure (psi) or: V = 9 ÆP For the B-757 main wheels, the speed would be: 9 Æ144 = 108 knots
What speed does a dirt bike hydroplane?
The FAA did a lot of work to determine the factors involved in hydroplaning. Their testing showed that the speed at which hydroplaning can occur depends upon the air pressure in the tires. The formula is V = 9 * Sqrt(Pressure) where V is speed in MPH and Pressure is in PSI If you add weight but don't add air, the tire will compress, which causes tire pressure to go up, increasing the hydroplane speed. ref http://www.sheldonbrown.com/tires.html#tread
In wet weather drivers should maintain what speed to prevent hydroplaning?
Slower
What type of speed should a driver maintain in wet weather to prevent hydroplaning?
lower
Is Hydroplaning best controlled when you speed up and make drastic control inputs?
ture
What causes hydroplaning in a car?
Hydroplaning is like water skiing. You need standing water on the roadway, not just moisture, and the necessary speed which is determined using tire pressure and math. The hydroplaning speed for tires at 32 psi is approximately 51 mph minimum. If you hit standing water at any speed other than a crawl you most likely will experience handling problems and possible loss of control.
How can you determine at what speed a car will hydroplane?
There are too many variables that affect automobile hydroplaning speed such as weight, tire pressure, tire tread design, tire wear, road surface, road condition (i.e., depth of contaminating snow, slush water, etc.) and so forth to be able to develop a valid, useful formula. However, with respect to airplanes where runway surface conditions, tire tread, tire pressure, and other factors are maintained to a more consistent standard, the generally accepted rule of thumb is 9 times the square root of the tire pressure. For example, if the nosewheel tire pressure is 90 lbs., the square root would be 9.5, which, if you multiply by 9, would give you an expected nosewheel hydroplaning speed of 85.5 nmph. Obviously, automobile hydroplaning speeds would be much lower than that. According to testing cited by the NTSB, the speed at which hydroplaning can be expected to occur in a vehicle is 10.35 x square root of the tire pressure. :It is about 30-45 mph. When I drive in rain I'm always super careful. That's incorrect, hydroplaning can occur at any speed when your tires do not have direct contact with the road surface.
Does cruise control make hydroplaning more dangerous or increase the chance of hydroplaning?
When it is raining, the chances of hydroplaning are higher. You see, the cruise control makes every attempt to maintain a set speed. When hydroplaning occurs, the tires lose traction, and as such the car starts to slow down, then the cruise control kicks in suddenly trying to accelerate the car back to the set speed. The cruise control does not know the road conditions or if it is raining, snowing or you are floating on a lake ... it only knows the speed set point and will always do everything it can to achieve that set speed, no matter what. Best advice when it's raining - turn the cruise control off.
In wet weather drivers should maintain what kind of speed to prevent hydroplaning?
Slower speeds would be recommended.
