Can you guess what this truck is doing? 🤓⁠⁠ ⁠⁠ When an aircraft touches down, the landing gear wheels start rotating. The friction forces peel some rubber off the tyres and this process continues until the wheel rotation speed matches the aircraft speed. Therefore, the touchdown zone is prone to rubber deposit accumulation. ⁠⁠ ⁠⁠ The adverse effects of these deposits are that they: ⁠⁠ 1. obliterate the runway markings (which may confuse the pilots) ⁠⁠ 2. become slippery when wet (e.g. due to rain) which may contribute to a runway excursion⁠⁠ ⁠⁠ Rubber can removed by using one of the following methods:⁠⁠ ⁠⁠ 1. High-pressure water blasting⁠⁠ This is a method for mechanical removal of rubber deposits. The equipment ranges from a single, manually operated nozzle (or gun) supplied by pump and water tender, to sophisticated, self-propelled semi-trailers incorporating a pump, a water tank and a high-pressure water spray bar. This method is reasonably effective on lightly contaminated areas, ...