When there are almost all the planes, including aircraft, rockets or helicopters, the sun's light falls on them. As a result, they would be hot. We can not stay under the sunlight for 5 minutes. Keeping the sun or some of the sun in a while, it gets so hot that it can not be taken with the hand. So the air and sky giants were so hot that they could not have so much inside. Because the body of the aircraft is made of aluminum. Aluminum from iron is more hot early. How do you travel by day in the air?
We all know that the white color heat absorbs less than the other colors and the light can reflect more. As a result, when the sun shines on the white aircraft, most of them are reflected. So air, rocket, helicopter and almost all the sky's air colors are usually white. And the heat inside the body of the aircraft is thermal material. So which heat absorbs heat, it can not enter the airplane.