Поправка.
Похоже это не золото.
На сайте http://www.danshistory.com/stealth.shtml сказано:
Have Glass
Have Glass is the code name for a series of RCS reduction measures for the F-16 fighter. Its primary aspect is the addition of an indium-tin-oxide layer to the gold tinted cockpit canopy. This is reflective to radar frequencies, while it may seem odd, adding a radar reflective coating actually reduces the plane's visibility to radar. An ordinary canopy would let radar signals straight through where they would strike the many edges and corners inside and bounce back strongly to the source, the reflective layer dissipates these signals instead. Overall, Have Glass reduces an F-16's RCS (radar-cross section) by some 15 percent.

То есть покрытие фонаря F-16 из индий-оловянного оксида уменьшает ЭПР на 15%.