Special Features:

Lens in pos 2 engraved contr a/c fuel; lens in pos 4 engraved screened; lens in pos 5 engraved controlled aircraft; lens in pos 6 engraved rate aided track; lens in pos 7 engraved sub-surface; lens in pos 8 engraved trial intercept; lens in pos 9 engraved handover out; lens in pos 11 engraved barrier ref point

Properties:

A digital/numeric/character display illunimated by incandescent lamps projecting changeable messages through a series of light collecting, condensing, and projection lens onto a viewing screen. May include message film chip(s), a message storage medium, and color filter(s). Excludes readout, incandescent type.