* so subtract instead of add.
*/
ticks = ao_flight_tick - ao_flight_prev_tick;
- ao_vel_change = (((ao_raw_accel + ao_raw_accel_prev) >> 1) - ao_ground_accel);
+ ao_vel_change = (((ao_raw_accel >> 1) + (ao_raw_accel_prev >> 1)) - ao_ground_accel);
ao_raw_accel_prev = ao_raw_accel;
/* one is a common interval */