Definition
A form of hydroplaning in which a locked, skidding tire generates enough frictional heat on a wet runway to boil the trapped water beneath it. The resulting steam lifts the tire off the surface while the heat softens and chemically reverts the rubber of the tire's contact patch back to an uncured, gummy state, leaving distinctive white steam-cleaned streaks on the runway and patches of melted rubber on the tire.
Plain English
When a tire skids without rotating on a wet runway, friction can heat the water under it into steam. The steam holds the tire off the ground and the heat melts the rubber, so the airplane slides with almost no braking action.
Context Anchor
Seen in wet-runway landing and braking discussions, especially when studying reverted rubber hydroplaning.
Derivation
Reverted' comes from the Latin revertere, meaning 'to turn back.' The cured rubber of the tire is heated so intensely that it 'turns back' toward its original uncured, sticky form. Naming the failure mode after what happens to the rubber helps distinguish it from the other two hydroplaning types, which are about water behavior rather than tire damage.
Why Pilots Care
This hydroplaning can begin at lower speeds than dynamic hydroplaning and produces visible reverted-rubber skid marks that signal the tire lost all braking effectiveness.
Grounding Statement
Picture a tire locked and sliding on a wet runway: the friction creates heat, the water turns to steam, and the tire rubber can soften instead of biting into the pavement.
Intuition Check
Do not read reverted rubber as simply “rubber that went back where it was.” Here, reverted means the tire rubber changed back toward a softer, less useful condition because of heat.
Example Sentence 1
After the heavy rain, the crew briefed the risk of reverted rubber hydroplaning and planned to release the brakes momentarily if they felt the wheels lock up on rollout.
Example Sentence 2
Reverted rubber formed when the landing gear touched down on the flooded runway at high speed and the tires began to slide.