Editing Radar cross section (section)

=== Material ===
Materials such as metal are strongly radar reflective and tend to produce strong signals. Wood and cloth (such as portions of airplanes and balloons used to be commonly made) or plastic and fibreglass are less reflective or indeed transparent to radar making them suitable for [[radome]]s. Even a very thin layer of metal can make an object strongly radar reflective. [[Chaff (countermeasure)|Chaff]] is often made from metallised plastic or glass (in a similar manner to metallised foils on food stuffs) with microscopically thin layers of metal.

Also, some devices are designed to be Radar active, such as radar antennas and this will increase RCS.

==== Radar absorbent paint ====
The [[SR-71 Blackbird]] and other aircraft were painted with a special "[[iron ball paint]]" that consisted of small metallic-coated balls. Radar energy received is converted to heat rather than being reflected.