Aircraft tail with cross-flow fan systems

An aircraft, comprising:

• a fuselage having a longitudinal axis extending from a front portion through an aft portion;
• first and second horizontal tail members extending from the aft portion;
• a first cross-flow fan system rotatably mounted and oriented generally vertically on the first horizontal tail member;
• and
• a second cross-flow fan system rotatably mounted and oriented generally vertically on the second horizontal tail member;
• wherein the first and second cross-flow fan systems each comprise a variable thrust cross-flow fan assembly associated with a shroud, the variable thrust cross-flow fan assembly comprises at least one variable thrust cross-flow fan assembly unit;
• wherein the variable thrust cross-flow fan assembly unit having a longitudinal axis and including a first and second driver plates having a plurality of blades rotatably mounted therebetween, the plurality of blades disposed radially outwardly from the longitudinal axis such that the plurality of blades have a generally circular path of travel when the cross-flow fan assembly rotates about the longitudinal axis, the plurality of blades moveable between a plurality of pitch angle configurations, and a control assembly coupled to the plurality of blades, the control assembly operable to change the pitch angle configuration of the plurality of blades to generate a variable thrust, the control assembly further comprises a control cam that is operable to rotate relative to the first and second driver plates.