At Japan's busiest airports, a flight may arrive or depart every two minutes or so. In spite of this, Japanese airlines are frequently ranked among the world's leading on-time flight operators. Making their punctual performance possible are Japanese values and professional expertise. This time on Japanology Plus, we explore the wonders of air travel in Japan. Our expert guest, Shunji Akimoto, is a journalist who covers the air industry globally. And in Plus One, how to wash a passenger jet.