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Message of speedbird9468 - Sent 20 Jul 13:21

As we all know aircraft tryres have groves in them. Now what if aircraft tyres where designed similar to that of cars and trucks. Car trye companies spend a lot of money researching the best type of tread pattern for the type. Now what if the tread patters were similar. I mean we all buy the best tyre for our cars with the best grip. And, if you compare the size of a truck tyre and the size of an aircraft tyre they are similar. Although the weights are different. There must be some kind of tread pattern that would assist the pilot in wet runway conditions. I am not saying that tyres should be changed. But it should be that aircraft tryes should have a good tread pattern to disperse water and have a good grip performance on the runway hence improving the stopping power of the aircraft.
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Message of captain bill - Sent 20 Jul 14:45

Aircraft tyres are designed the way they are to 1. Due to there broad areas of rubber grip without sliding or skidding and 2. So that no water gets into the tread and causes the aircraft to aquaplane on landing in wet conditions. Also by cutting deep treads into them you weaken the tyre and there is more chance of the tyre blowing when you land a heavy weight airliner of around 30 to 50 tons.
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Message of speedbird9468 - Sent 20 Jul 15:33

Thanks for you reply captain Bill. I was wondering if anything could be developed to improve the design and water dispersal.
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Message of EI-DUB - Sent 21 Jul 9:23

speedbird, i'd be fairly sure that the tyres used are already fairly advanced. the avaition industry relies so heavily on having good safety standards, I would find it hard to believe that currently aircraft manufacturers throw on any old tyres. I would say the current ones are the best possible mix of being safety conscious and durable.
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Message of FLX - Sent 23 Jul 3:55

I don't expect the design of tires for airliners to be similar to cars & trucks. It's all about diff design priorities/objectives: 1. Most performance tires for cars are designed to sustain continuous highspeed op(Think cruising on German autobahns) but carry relatively little weight per square inch of a tire. Aircraft tires only need to run @ very highspeed for brief moments on the runways and carry almost no weight and hv no wear & tear when airborne. However, they carry tremendous weight per square inch @ impact upon touch-down and when on the ground. 2. Airliners don't tend to turn sharp corners @ highspeed in wet conditions on the ground. Even highspeed runway exits are not at all sharp when compared with e.g. your avg highway onramp-offramp, hence, car tires must hv very fancy tread patterns to safely 'entertain' adventurous drivers. 3. Aircraft tire tread design focuses almost exclusively towards straight-line stability in dry, wet, snow or strong crosswind conditions. The design pays very little attention to threading through a set of cones on the runway in slalom. That's why we see sets of straight parallel wide grooves but almost no transverse/curved grooves(Typical on performance car tires) on aircraft tire treads. I also noticed that tires used/changed on Formula 1 racers in rainy weather also hv tread design that emphasize straight parallel wide grooves similar to aircraft tire tread. 4. Aircrafts hv other movable control surfaces(e.g. rudder+spoilers) to aid straight line stability+braking whereas a car or truck has none. 5. In summary, car tires are designed with multiple priorities carrying extremely light load in mind. Aircraft tire design is focused only on a few objectives but on an extremely heavy load. I'd also argue that a lot of automotive active safety advancements actually originated fm aviation. e.g. Anti-lock brakes, Radial tires, Head-Up-Display are all adopted by aircrafts way before they debuted on automobiles. It's easy to spot advancement on the surface such as fancy tread pattern on car tires but it doesn't mean less-visible advancements didn't ocurred inside those gumballs on the landing gears.
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