Why are gliders almost always painted white?
to easily hide in clouds
to reduce solar heating
to make gliders distinguishable from other aircraft
to allow quick replacement of damaged parts
Since fiberglass resin softens at high temperatures, white is used almost universally to reduce the temperature rise caused by solar heating. Less popular non-fiberglass gliders (those made of aluminum and wood) can be painted any color.
reach: rather globalaviationcolorsglidersphysicstechnologywhite
Answers by country
to easily hide in clouds
to reduce solar heating
to make gliders distinguishable from other aircraft
to allow quick replacement of damaged parts
answers
the Netherlands52
Poland19304
Switzerland106
Republic of Ireland51
Austria137
Australia160
Germany975
the United Kingdom458
Canada97
Singapore39
Unknown39
the United States1247
Nigeria47
India846
Malaysia43
Pakistan56
Ghana30
the Philippines95
South Africa47
the United Arab Emirates30