were very similar, this grouping of observations from various types of 

 radars was justified. Equation (1) is an expression which relates the 

 maximum range to be expected to the physical cross-sectional area of an 



RANGE IN THOUSANDS OF YARDS 



Figure 24. — Relation between radar maximum range of detection and iceberg physical 

 cross-sectional area illuminated at the maximum range. 



56 



