# Thread: Aircraft Flying Control System - Seminar Presentation

### UNRESTRICTED VARIABLE PROBLEMS

The non–negativity constraint of a linear programming problem restricts that the values of all variables in the problem say for example x, y and z or a, b, c and d etc. must be = 0. Sometimes we may come across a situation that the values of the variables are unrestricted, i.e., may assume any value (0 or > 1 or < 1) i.e., to say that the ≥ sign is not required. In such cases to maintain non-negativity restriction for all variables, each variable is replaced by two non-negative variables, say for example: x, y and z are replaced by x\' and x\", y\' and y\", z\' and z\" respectively. If x\' > x\", then x is positive, while x\' < x\" then x is negative. Read this topic
1. ## Aircraft Flying Control System - Seminar Presentation

Main points covered on the presentation:

• Purpose of Flying controls in an aircraft
• Classification of Flying controls
• Cockpit controls
• Operating System of Flying controls
• Example Aileron Control System
• Unconventional Flying controls