An autopilot used a Rate integrating gyroscope for directional control.

The rate integrating gyroscope could be pre-programmed to turn the SM-73.

A Rate integrating gyroscope is a rate gyro with a built in integrator.

Rate gyros are used in rate integrating gyroscopes, and in attitude control systems for vehicles, and in combination with other sensors to make inertial navigation systems.

Draper combined ideas from his integrating gyroscopes, which were mounted in cans that floated in fluids that were held in place by jeweled bearings, with the recovered V2 accelerometer by floating the pendulum-gyroscope portion.