Why are most airplanes white?
The light color reflects sunlight and solar radiation while the plane is in flight and keeps the cabin cool. So basically it acts like a sunblock.
A cooler plane mean cheaper cooling costs for airlines.
The most important parts to keep a light color and protected from the sunlight are the parts that are plastic or composite materials.
The most important parts to keep a light color and protected from the sunlight are the parts that are plastic or composite materials Those tend to be the nose cone, which needs to be transparent because there's a radar behind it so that's a plastic material.
And also, often in modern airplanes the control surfaces are made out of composite materials.
Also painting it white makes it easier to look for any cracks or dents that might come on the body of the plane.
Another thing that tends to happen with the paint is, over time it will oxidize. So a red paint after a while when it's exposed both to the sun and also environmental conditions, will tend to kind of whiten up a little bit anyway cause of oxidization.