A vector SID is more flexible than a pilot nav SID, but at the cost of being more labor-intensive for the
controller. In this type of SID, you will be given radar vectors and altitudes by the controller, who will
constantly monitor your position (Figure 15).
Because the vector SID requires the active participation of the controller, the amount of radio traffic
between you and the controller will be significant. You must acknowledge all radio calls; repeat all
headings, altitudes, and altimeter settings; and promptly comply with any instructions.
While a vector SID makes more demands on the controller than does a pilot nav SID, it also provides the
controller more flexibility in dealing with changing weather or traffic conditions or with temporary
restrictions. Consider the SID canceled if the aircraft is vectored or cleared off the SID (a specified
heading), unless ATC adds expect to resume the SID or otherwise indicates the deviation is temporary.