What are the adverse affects of burnout rubber left on the runways for airplanes?

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    $\begingroup$ Are you talking about loose FOD chunks of rubber, or rubber embedded in the pavement? Your question and the title ask two different questions. The "rules" probably vary by airport and really doesn't have an answer. $\endgroup$ – Ron Beyer Jul 19 '18 at 21:05
  • $\begingroup$ racetherunway.com why not ask the organisers of this event? I've met some of them a few months ago, they were nice enough people. $\endgroup$ – jwenting Jul 20 '18 at 4:46
  • $\begingroup$ How about landing on the raceway $\endgroup$ – TomMcW Jul 20 '18 at 17:26

The adverse effect is once the layer of rubber gets too thick it starts to degrade braking performance, especially wet braking because the rubber is filling in the surface irregularities that help channel water out from under the tire. Aircraft wheels will hydroplane at much lower speeds and with less water depth. Airports remove excess rubber from touchdown zones once it gets beyond a specified thickness.

I would expect that the rubber from spinning car tires would be no worse than the rubber that builds up on touchdown zones on heavily used runways. If an airport is closing a runway to use for drag racing, it can't be a very busy airport, but in theory a really heavy rubber build up could be a concern if infrequent high performance aircraft like business jets use it, you know, when no drag racing is going on. That would be up to the airport operator what to do about it.

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    $\begingroup$ which is precisely why runways are tested for traction regularly and cleaned as needed. $\endgroup$ – jwenting Jul 20 '18 at 4:45

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