| 31. | Some systems may incorporate the input from a gyrocompass to rotate the display and once again display north as " up ".
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| 32. | Since magnetic and gyrocompasses show the course to steer, the officer must be able to determine and correct for compass errors.
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| 33. | A helmsman relies upon visual references, a magnetic and gyrocompass, and a rudder angle indicator to steer a steady course.
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| 34. | Some products continue to be sold under the SG Brown banner; principally gyrocompass and hand-steering units for military vessels.
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| 35. | Airspeed and heading can be measured with a fair degree of accuracy using onboard measurements, namely the airspeed indicator and gyrocompass.
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| 36. | This was solved with the introduction of a selsyn connected to the aircraft's gyrocompass, whose output modified the scan rotation.
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| 37. | By the time these stabilizers were abandoned, gyroscopes had already found their place in ship navigation as gyrocompasses and in control systems.
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| 38. | The gyrocompass guided the torpedo to the target, allowing even rear-launched torpedoes to turn around and hit a target in front.
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| 39. | Non-magnetic methods of taking bearings, such as with gyrocompass, GPS ) or radio navigation, are not subject to magnetic deviation.
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| 40. | In such cases, the ship's gyrocompass sends a disabling signal that closes a solenoid valve to block mercury flow between the tanks.
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