Most of the planes we see are white. But do you know why the planes are painted like this?
Actually, white is not their natural color. But there are many advantages(优点) if they are painted white. It is a good way for airlines(航空公司) to protect their plane from sunlight. Another reason is that white paint can reduce (减少) heat and any possible damage(损坏) from sun radiation(辐射). Less heat also means lower cooling cost for airlines.
That's not all. The airplane company staff check the plane's surface each day. White paint makes it easier than colorful paints for staffs to find out the cracks on the plane' s surface. Most importantly, safety is a matter that we should pay more attention to. At night or in bad weather, it will become more difficult for the ground monitoring station to see the plane flying in the sky. So white planes can help people reduce this bad effect(效果) when the planes are seen clearly in the special environment.
The cost of keeping a plane in the best situation is mainly considered by many airplane companies. Actually, a colorful appearance looks good but is useless. Colorful planes often lose their color after flying for several years. Especially, bad weather, the main reason, will do harm to their appearance. Airlines will have to spend time and money repainting their planes. In order to cut the unnecessary cost, many airlines will paint them in white or keep most of the planes' appearance in white instead of other colors.
All in all, the color white is a better choice.