| 摘要 |
An apparatus to align a propeller shaft comprises two main, parts being a first part which is attached to a skeg and which contains a laser emitter, and a second part which is attached to the power outlet of the engine and which contains a prism to deflect the laser beam to a target board, the arrangement allowing alignment between the skeg and the power outlet such that when the propeller shaft is attached the propeller shaft is in perfect alignment.
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