A vertical stabilizer is configured to minimize the rate of change of
cross-sectional area distribution of the vehicle or device to which the
vertical stabilizer is mounted. One or more "waisted" areas can be
included at the tip and/or the root of the vertical stabilizers, as well
as over the distance from tip to root of the vertical stabilizer. In some
situations, a strake is mounted on the vehicle or device, such as an
aircraft, and the vertical stabilizer is mounted to the tip of the
strake. The strake can also be area ruled with one or more "waisted"
sections at the juncture of the vertical stabilizer. Applying area ruling
to the vertical stabilizer helps to further reduce the drag of the
vehicle or device.