  - Absence of latitude error in AnschÜtz (1912) compass, 158
- Absence of latitude error in Brown compass, 66
- Action of excentric pin in Sperry compass, 55 et seq.
- Air-blast pressure, Brown compass, 61
- AnschÜtz (1910) compass—
- Air-blast damping system, 42 et seq.
- Damping curve, 50
- Latitude error, cause of, 65
- — — correction for, 67
- — — value of, 68
- Magnitude of directive force at equator, 23
- Non-gyroscopic details, 138
- Period of vibration of axle, 33, 37
- Peripheral speed of wheel, 47
- Quadrantal error, 96, 107, 120
- Weight, diameter, and speed of wheel, 23
- Weight of sensitive element, 30
- Wheel tested to destruction, 140
- AnschÜtz (1912) compass—
- Absence of latitude error, 158
- Directive force, value of, 125
- Fourth gyro type, 128
- Gyro-wheels, details of, 159
- Non-gyroscopic details, 154
- Oil damping system, 156
- Quadrantal error, 107, 120, 126
- Repeater compasses, 162
- Temperature rise, 160
- Weight, diameter, and speed of wheels, 123
- Ballistic deflection and error, 81 et seq.
- Ballistic deflection, dead-beat, 87
- Ballistic deflection, tests by British Admiralty, 89
- Ballistic gyro, Sperry compass, 111
- Brown compass—
- Absence of latitude error, 66
- Air-blast pressure, 61
- Compensator weights, 134
- Damping bottles, 61
- — system, 59 et seq.
- Generation of directive force, 116
- Magnitude of directive force at equator, 23
- Non-gyroscopic details, 148
- Oil control bottles, 113
- On due west course, 117
- Quadrantal error, 113, 126
- Repeater compasses, 154, 162
- Weight, diameter, and speed of wheel, 23
- Weight of sensitive element, 30
- Centrifugal forces during quadrantal rolling, 130 et seq.
- Clock, gyroscopic, 35 et seq.
- Weight, diameter, and speed of gyro-wheel, 23, 123
- Weight of sensitive element, 30
Printed in Great Britain at
The Mayflower Press, Plymouth. William Brendon & Son, Ltd.
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