| 摘要 |
<p>A method comprising a first step of determining the point on the flightpath wherefrom it is theoretically no longer possible to comply with the required time constraint by following a pre-established speed profile, and a second step of computing a speed change and determining a fresh speed profile obtained by determining segment-by-segment speed corrections from said point up to the last modifiable segment. The speed change in each segment is restricted to a maximum value and the new speed is computed on the basis of the curve showing the flight time t as a function of the speed V, said curve being converged upon by a curve corresponding to the following equation having three coefficients (c1, c2, c3): V = c1 / t + c2 / t2 + c3 / t3. Compliance with time constraints may thus be ensured while meeting the requirements of the pilot and air traffic controllers.</p> |
