Rate of Climb/Vertical Air Speed Indicator 0-3000 Ft/Min Aerosonic RC-30-V HH-3F Luftwaffe The P-38 had two fuel

The P-38 had two fuel quantity indicators

Here is a WW2-era German Gyro Horizon FI

OCAMA managed repairs and furnished spare parts for the B-52

According to the Maintenance Interchangeability gude dated Feb 1945

Rate of Climb/Vertical Air Speed Indicator 0-3000 Ft/Min Aerosonic RC-30-V HH-3F Luftwaffe The P-38 had two fuelHere 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