Methods and apparatuses for measuring and adjusting tension in pliant tension members, including aircraft recovery lines. A tool for indicating tension in a pliant tension member in accordance with one embodiment of the invention, for example, can include a first support member releasably coupled to a flexible line suspended from a support structure. The first support member is positioned generally parallel to the flexible line. The tool can also include a second support member coupled to the first support member and positioned at an acute angle relative to the first support member. The second support member has a center of gravity at a selected distance from the flexible line. The second support member is generally horizontal when the tension in the flexible line is at a desired value.