Archive
of
Collections
Details and Image
Type
Model #.
Aircraft Maker / Name
Instrument Maker
Country
Construction
Date
Scale Length
Area of Use
Disk / Plate
A-1
Generic
Allegheny Plastics
U.S.A.
Plastic
est. 1960's
Dia. = 20.3 cm
Aircraft Navigation
Comment:
Used to determine sunrise and sunset with a worldwide map centered on the north pole
Image 1
Image 2
