This is a relatively simple rake, with two narrow "V" type sprays, all developed by an LCD of 8 ru. One powerful feature is #103 (8 ru) tripling exactly to 24 ru (#76) and quintupling to 39.8 ru (#50). An equally impressive array is #103 at 8 ru balancing with #93 at 7.9 ru, doubling to 16 ru exactly at #86, and octupling to 64.2 ru at #9. Each of these points is well-defined indeed!

With an LCD of 14.6 ru, we get the familiar pattern of three symmetrically spaced points. The distance out is astonishingly similar-29.2, 29.2, and 29.3 ru The precision of this pattern carries through to #42 (43.6 ru) and #30 (43.7 ru). This pattern is special because the location of each point is well defined.

A simple example with an LCD of approximately 3.2 ru.

Another simple example with an approximate LCD of 11.9 ru.

Here we have a straightforward "V" type spray based on an LCD of 8 ru.

A simple "V" type spray based on an LCD of 13.5 ru.

Another simple chart with an LCD of approximately 10.6 ru.

Two separate groups are combined on this chart. First, we have #82 at 15.4 ru becoming slightly more than double at #76 with 31.1 ru. Second, #58 at 37.2 ru doubles to 74.3 ru at #3.

This "stepladder" or "fanshaped" spray is a fitting example with which to terminate this series of charts. Each successive point is approximately 10 ru farther out than the preceding point. This pattern looks similar to the lobe type of pattern of a radar antenna that is transmitting (or receiving) a signal.