Heading indicator - Wikipedia
The Pros, Cons and Uses of Different Gyroscopes - CEVA's Experts blog
File:Horizontal gyro 01.jpg - Wikimedia Commons
Gyro Tool For Surveying In Oil & Gas Drilling Wells - Drilling Manual
gyroscopic systems and instruments
Gyroscopic Motion
Accuracy and reliability of gyro measurements at today's tunnelling projects
Gyroscope - Wikipedia
File:Horizontal-gyro hg.jpg - Wikimedia Commons
The Airline Pilots Forum and Resource
Flight Instruments: Directional Gyro - Schaefer Flight
Directional gyro | Article about directional gyro by The Free Dictionary
DIRECTIONAL GYRO | infotainment-system
Heading indicator - Wikipedia
Flight Instruments: Gyroscopic Flight Instruments (Part Two)
Aircraft Gyroscopic Instruments
Heading indicator - Wikipedia
Falcon Gauge Directional Gyro - Wicks Aircraft Parts
Directional Gyro
flight instruments - "In the turn coordinator, the gyro is canted 30 degrees from the horizontal so it responds to roll as well as yaw" - Aviation Stack Exchange
Gyroscopic Systems and Instruments
Aircraft Gyroscopic Instruments
The Heading Indicator (Directional Gyro) - YouTube
