aquaplaning


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aquaplaning

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A condition that can exist when a high-speed aircraft lands on a water-covered runway. Water forms a fine film between the tires and the runway surface, rendering braking relatively ineffective and causing the aircraft to skid. An effective antiskid system can prevent aquaplaning. Runway grooving is the most effective method of preventing aquaplaning. When there is a thin film of oil, dirt, or rubber particles mixed with water that prevents tires from making positive contact with the pavement and makes braking ineffective, the phenomenon is called vicious hydroplaning. A thumb rule for determining minimum aquaplaning speed in knots is 8.6 × the square root of tire pressure in psi (lb/in2). The minimum full aquaplaning speed (where the entire tire is lifted off the runway) is 9 × the square root of tire pressure in psi. Where a stationary wheel lands on a flooded runway, the minimum full aquaplaning speed is 7.7 × the square root of the tire pressure in psi. Also called hydroplaning and dynamic hydroplaning.
References in periodicals archive ?
The PSNI said on Facebook: "Everyone has heard of aquaplaning, but how often have you seen the results of it?
Aquaplaning, or hydroplaning as it is sometimes known, happens when a layer of water builds between the wheels of a vehicle and the road surface.
One can't be sure how deep it might be, apart from the chance of aquaplaning. If you have to drive through a standing pool of water, try not to create a splash because water might get into the engine through the air intake, damaging the motor.
There was so much aquaplaning on the back straight with some big puddles.
"You wouldn't want to be racing in those conditions, going wheel to wheel, because you can't see the aquaplaning until you arrive."
Nico Hulkenberg said "A very limited programme today to avoid running on such a wet track with a high risk of aquaplaning. The only time we felt we could learn anything was in the final half hour of the afternoon session so we remained in the garage for most of the day.
It is well known that hydroplaning (or aquaplaning) is the movement of an object on the surface of water when the object remains on the surface only due to the velocity head of water, i.e.
Drivers risked aquaplaning off the circuit at the merest application of the throttle in yesterday's practice hour in which only two managed to set lap times, and Button felt there was only one course of action.
Drivers risked aquaplaning off the circuit at the merest application of the throttle in yesterday's practice hour, in which only two drivers set lap times, and Button felt there was only one course of action.
Additionally, the expanded range comes with improvements including lower fuel consumption by lower rolling resistance, shorter braking distance on wet road, stronger aquaplaning protection and better snow grip.
I struggled with the car aquaplaning and the tyres shuddering as we couldn't get the temperatures high enough to make them work properly.
In her youth Evelyn enjoyed skiing, boating, aquaplaning and hiking with friends and family.