384 

14 CFR Ch. I (1–1–19 Edition) 

Pt. 60, App. C 

near field objects. The situation is reversed 
for dome displays. 

(2) Stereopsis cues resulting from the dif-

ferent images presented to each eye for ob-
jects relatively close to the viewer also pro-
vide depth cues. Again, the collimated and 
dome displays provide more or less accurate 
cues depending on the modeled distance of 
the objects being viewed. 

d. Training implications 

(1) In view of the basic principles described 

above, it is clear that neither display ap-

proach provides a completely accurate image 
for all possible object distances. The sponsor 
should consider the training role of the FFS 
when configuring the display system to 
make the optimum choice. Factors that 
should be considered include relative impor-
tance of training tasks at low altitudes, the 
role of the two crew members in the flying 
tasks, and the field-of-view required for spe-
cific training tasks. 

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