Why Aeroplanes Are White?
Not every but most of the commercial aeroplanes are white, first and the most obvious reason is its ability to reflect sunlight, compared to dark colour which observes the sunlight which can increase the temperature inside Aeroplane. White minimises the heat and solar radiation.
The next reason can be money. It's cheaper to paint white rather than painting any other colour. Every plan starts with white, which means an additional layer of paint will add more weight not only on an aeroplane but on money too. More weight means more fuel burn, adding more cost.
Also when there is damage in the Aeroplane or any crash, white colour makes them visible more easily compared to other colours.
Did you know: An average Boeing 746 aircraft has over 240 kilometres of wires inside its body.