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*ICE
2
*LANDING FIELDS
2
GLACIERS
2
Ice and Permafrost
2
SURVEYS
Snow
2
TRANSPORT AIRCRAFT
2
Terminal Flight Facilities
2
*ANTARCTIC REGIONS
1
*RUNWAYS
1
ABLATION
1
AERIAL PHOTOGRAPHS
1
AIRCRAFT LANDINGS
1
ANTARCTIC REGIONS
1
ANTARCTICA
1
BLUE ICE
1
BLUE(COLOR)
1
COLD REGIONS
1
CROSSWINDS
1
GROUND LEVEL
1
ICE RUNWAYS
1
ICE TRAFFICABILITY
1
JET TRANSPORT AIRCRAFT
1
LAND ICE
1
LANDING FIELDS SITE SELECTION
1
LIMITATIONS
1
LOW COSTS
1
MACHINES
1
MILITARY REQUIREMENTS
1
MOUNTAINS
1
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