Autopilot Turn Controller, B-47, USAF Type E-1 Sperry 662611 TBM Avenger Here is a WWII-era pneumatic

Here is a WWII-era pneumatic Directional Gyro/Turn Indicator made by Jack & Heintz

and adjusted by AeroAntique

and air tanker KC-135

at the junction of the "Vs"

though slow

Autopilot Turn Controller, B-47, USAF Type E-1 Sperry 662611 TBM Avenger Here is a WWII-era pneumaticThis is an example of the Turn Controller, Type E 1, as used in USAF aircraft of the late 1940's. This item has a serial number prefix of AF 48, evidence of manufacturing year of 1948 for a USAF order. This is the Observer's Turn Controller in the Cold War era USAF B 47 Stratojet strategic bomber, used by the Observer (i. e., Navigator Bombardier) to control the aircraft while on a bombing run. (See page from the B 47E Flight Manual dated 1954