Colour or Monochrome Films in Laboratory Experiments on the Acquisition of Ground Targets from Medium Altitude

This report describes three laboratory simulation experiments to compare target acquisition performance obtained using monochrome and colour films of identical routes and targets. It is concluded that monochrome films give similar results to those obtained with colour films for relatively prominent targets capable of being acquired at long ranges in: (1) experiments which involve first-pass detection range measurements, or (2) experiments involving potential range measurements. The adequacy of monochrome films for simulating the acquisition of more difficult targets, only capable of being acquired at short ranges, or more difficult navigation tasks remains untested.