Plotting Computer 16 x 16 in P-38 as used in aircraft of

as used in aircraft of the British RAF and the Royal Australian Air Force

German Aircraft"

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The center knob adjusts the center 'airplane' silhouette up/down

This example is a US Navy Mark K2

Plotting Computer 16 x 16 in P-38 as used in aircraft ofThis Plotting Computer is comprised of 3 clear disks with linear black, green, and blue markings that rotate about an axis at the center of a fixed circle marked in degrees. A clear hinged and latched polycarbonate lid overlays the active elements of the device. We assume that this was used in an instructional setting, but know nothing else about this device.