While researching how SR effect could be applied to GPS clock after GR effect, I encountered the experiment made on 1971. In the section "Kinematic Time Shift Calculation", I saw an totally no sense algorithm, violating simple math. First, Ts = T0 * (1+R^2w^2/(2*c^2)), where Ts is the Earth surface time, R is the Earth's radius and w is the Earth's angular velocity of Earth's rotation. Second, Ta = T0 * (1+(R^2*w^2+v^2)/(2*c^2)), where Ta is the airplane's time and v is airplane's velocity. Then, Ta-Ts = T0 *( 2Rwv+V^2)/(2c^2). Up to here , it's totally reasonable. Next thing, it brought in is completely math. incorrect. Ta-Ts = - Ts * (2Rwv+v^2)/2c^2. Note the minus sign coming from nowhere. If Ta is larger than Ts from the first two equations, Ta-Ts will never be negative. If this math. can live in the Physics, there is definitely something wrong.