| 000 | 00731nam a22001577a 4500 | ||
|---|---|---|---|
| 999 |
_c12419 _d12419 |
||
| 008 | 230619b 1982 ||||| |||| 00| 0 eng d | ||
| 020 | _a0851744265 | ||
| 082 |
_a623.892 _bFRO |
||
| 100 | _aFrost, A. | ||
| 245 | _aMarine Gyro Compasses For Ships' Officers | ||
| 250 | _a1st ed. | ||
| 260 |
_aBritain _bGlasgow _c1982 |
||
| 300 | _axix, 145p. | ||
| 520 | _aMarine Gyro Compasses for Ships' 0fficers has been written to cover the syllabuses for all grades of Department of Trade certificates of competency for deck officers in the Merchant Navy. The first section of the text discusses the free gyroscope and its properties which enable it to be converted into an instrument which provides a north reference. | ||
| 942 | _cBK | ||