I__. - International Military Testing Association

3.2.2. Motion Realism
Motion is essentially perceived by the visual organs. APS/H can
therefore do without a motion system. Nevertheless, vibrations
typical of helicopter flying will be generated by Pitting a
vibration device to the pilot seat.
3.2.3. Visual System Realism
The APS/H needs a visual system for the following purposes:
+ flight attitude-related visual feedback
+ visual cueing for landing approaches
+ projection of obstacle images for nap-of-the-earth flying
t projection of images of prominent terrain features for visual
navigation.
All these images will be schematic in nature. It should be clear
that no gain will be made in dealing with the above-mentioned
tasks.by adding the image of leaves to the trees simulated.
3.2.4. Acoustic Realism
Realism in motion cueing will be enhanced by a realistic
simulation of environmental sound patterns. This creates the need
for an acoustic system with duemy head microphone quality via a
head set.
All in all, a detailed analyzis shows that the level of realism
required for the APS/H need not be extraordinarily high to serve
its purpose. Especially in the field of visual systems design,
schematic images will do and thereby reduce overall costs.
4. Summary
Conventional test methodes (paper/pencil etc.) are firmly
established tools to be applied in all phases of pilot candidate
selection processes, but it should be borne in mind that their
validity is limited and cannot be improved considerably as can be
seen from the experiences gained, An in-depth analysis of the
psychic potential required for meeting flying demands presupposes
the esistencc of methods that are in keeping with real flyilhg
demands and, additionally, permit the application of scientificexperimental
criteria. When one loolcs at physicists who, in,sekrch
of minute particles, venture to demand equipment of inconceivable
dimensions and are actually provided with it, then it is justified
to say that the outlined APS/H designed to study behavioral
Patterns of helicopter pilots is fairly modest demand.
184