Gyro Angle

A Gyro Angle (or Torpedo Gyro Angle) is an angular turn of a given number of degrees that a torpedo equipped with a gyroscope and some additional hardware could be set to assume as soon as it gained control in the water.

Britain first started experimenting with torpedoes capable of gyro angles in 1911. The initial models could take up angles as large as 40 degrees on either side, in 10 degree increments. They were under trial in the Home Fleet in 1911.

Some time after, the granularity of angles that could be set was reduced to 5 degree increments, but the limits were still generally kept as 40 degrees.

The use of gyro angling had impacts on torpedo control data instruments as well as on torpedo directors and sights.