The sectional, Terminal Area and WAC charts are
described in the AIM at section
These charts are used mainly for VFR navigation and have only limited
application in simulated flying when using the SB/PC system. They
are handy for general flying and to familiarize yourself with an area.
The WAC presents the same basic information as a sectional chart,
but, at a larger scale and not with as great a detail.
The VFR Terminal Area Charts are a smaller scale than the sectionals
and are useful for becoming familiar with the area around major airports.
While these three types of charts are not sufficient for IFR flight,
they can be used for general flight planning and obtaining frequencies
of navaids if you do not have the appropriate IFR charts handy.
There is, however, key information necessary for safe IFR
flights that is not included on these charts, such as MEAs (Minimum
Enroute Altitudes) and MRAs (Minimum Reception Altitude). The former
assures obstacle clearance and the latter assures navaid reception.