You can hardly argue with the fact that almost all passenger planes are painted white.
Some of them also have patterns, stripes, names, but the main color is still white. Agree, it would be interesting to know why this happens.
The main reason is the ability of white and light colors to reflect sunlight.
If you replace white with black, for example, it will begin to absorb sunlight and as a result will heat up.
The white paintwork of a passenger aircraft helps to minimise heating and potential damage from solar radiation both during flight and when the aircraft is parked on the runway.
But that's not all: the white color makes it easier to check the fuselage for various damages, and also makes it easier to find the plane in the event of an accident, especially when the incident occurs at night or, for example, in a large body of water.
In addition, white is a more cost-effective color because it does not fade due to long flights at high altitudes.
Lastly, because the white color contrasts strongly with the background (especially at night), the number of bird collisions is significantly reduced.