Fig. 1 Components of the tilt and the gravitational accelerationcomponents of the gravitational acceleration.The designations used in Fig. 1 mean:g – gravitational acceleration;gx, gy, gz – Cartesian components of acceleration g;α – pitch;β – roll;γ – alternative roll (according to aeronautical nomenclature);ϕ – arbitrary tilt angle.1. Tilt vs. Components of the Gravity AccelerationThe most common way of expressing tilt is to determine its two component angles pitch α and roll β, defined in Fig. 1 against the