Rate of Climb/Vertical Air Speed Indicator 0-3000 Ft/Min Aerosonic RC-30-V HH-3F Luftwaffe As the screw is turned

As the screw is turned

The Navigator's Radio Compass Indicator

According to the Maintenance Interchangeability gude dated Feb 1945

The meter was part of a Radar Fire Control system

made by Bendix for an order by the US Air Force dated 1949 (see serial number prefix)

Rate of Climb/Vertical Air Speed Indicator 0-3000 Ft/Min Aerosonic RC-30-V HH-3F Luftwaffe As the screw is turnedHere is a Rapid Response, Acceleration Sensitive Rate of Climb Vertical Speed Indicator, made by Aerosonic part number RC 30 V, indicating vertical speed from 0 3000 ft min. Similar to those used in the Helicopter Sikorsky HH 3F Pelican of the US Coast Guard (see illustrations of the HH 3F instrument panel from its flight manual dated 1968 showing the location of the instrument). Measures 3. 25in diameter and ~5in deep. It is in exceptional condition