In an earlier paper it was proposed that the turbulence-induced motion
of a flight simulator could be augmented without affecting the visual
and instrument displays. This may be necessary if the simulator's was
hout filters severely restrict its motion response to atmospheric turb
ulence. The present study has implemented the proposed technique on th
e University of Toronto Institute for Aerospace Studies flight researc
h simulator, and carried out pilot evaluations for both high-altitude
and low-altitude operations in the presence of atmospheric turbulence.
The results indicate that the technique can successfully increase the
simulator's motion response to turbulence in a manner that is accepta
ble to pilots. It was found that a simple second-order transfer functi
on representation of the aircraft is sufficient within the motion augm
entation channel. The resulting motions were judged to add to the real
ism of the simulation and to compare favorably with other training sim
ulators.