JEB -- Taylor and Thomas 206 (16): 2803 Figure IG2

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2. Definition of the state variables u, w, q and ${theta}$ . Each of the variables is signed positive in the direction shown. The body axes are centred upon the centre of mass and are aligned so that the x-axis points in the direction of flight at equilibrium. The locust is shown during a nose-up perturbation: q is zero at equilibrium, and w and ${theta}$ are defined so as to be zero at equilibrium.