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FIGS 16-20: EXPERIENCE WITH HYBRID IR-VISIBLE VIEWING FROM LOW FLYING AIRCRAFT 
FIG 16. 
The Thermovision/Superviewer was 
used to look through smoke at a 
burning stubble-field, to evaluate 
its performance in forest fire per- 
imeter surveillance. 
FIG LT. 
Hotspot visible from a distance of 
one kilometre, in the hybrid view, 
showing a holdover fire on the edge 
of a field (arrow). Other hotspots 
are farm machinery nearby. 
FIG 18. 
Approaching the same hotspot in the 
helicopter, it is seen through the 
Superviewer from a distance of about 
100 metres (arrow) with offshoots 
along the smoulding log which turned 
out to be the source of the fire. 
FIG 19. 
After landing, the same holdover 
(arrow) is invisible without the 
thermal imagery to spot its radia- 
tion pattern. 
FIG 20. 
It was very helpful to be able to 
do an immediate video playback after 
each patrol as a means of improving 
IR operator performance - using the 
CCTV monitor, and & spare headset 
for the simultaneously recorded 
sounds of crew comments from the 
aircraft intercom. 
    
  
   
  
  
  
  
    
    
  
    
    
  
  
    
    
    
  
  
  
  
  
  
  
  
    
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