Plotting Machine AN-5750 in Wooden Case Cold War Here is a WWII-era Vertical

Here is a WWII-era Vertical Speed Indicator used in aircraft of the German Luftwaffe

made for US military aircraft applications by Elgin (MS28020LI)

The knob turns and the display rotates as it should

It thus serves as the VHF antenna and the forward support for an HF antenna

made by Aerosonic part number RC60V10 for Cessna

Plotting Machine AN-5750 in Wooden Case Cold War Here is a WWII-era VerticalHere is an authentic WWII era navigational plotter used by aircraft navigators to plan, plot, and track their course along a chart. The plotter would be affixed to a navigator's map table and laid upon the map of the flight plan, typically in a large aircraft. The kit includes the plotter (a protractor with base), two lengths of straight edge, a two piece mounting clamp, an extra tension band, and an envelope of fasteners. This example is in its