# \#navigation **URL:** https://www.queseas.com/tag/navigation/60.md [Latest](https://www.queseas.com/latest.md) · [Categories](https://www.queseas.com/categories.md) · [Tags](https://www.queseas.com/tags.md) --- ## [Panama Canal new requirement - Installation of a fixed piloting unit (starting from 1 October 2023)](https://www.queseas.com/t/panama-canal-new-requirement-installation-of-a-fixed-piloting-unit-starting-from-1-october-2023/863)
**Author:** [@Surcouf\_Renard](https://www.queseas.com/u/Surcouf_Renard)\ **Replies:** 2\ **Last updated:** [May 16, 2024, 6:39am UTC](https://www.queseas.com/t/panama-canal-new-requirement-installation-of-a-fixed-piloting-unit-starting-from-1-october-2023/863 "2024-05-16T06:39:12Z")
Good day! I came across this new Panama Canal requirement for vessels transiting the Panama Canal with a beam of 33.2 meters or more. --- ## [Operational principle of gyrocompasses](https://www.queseas.com/t/operational-principle-of-gyrocompasses/757)
**Author:** [@Raj.Raganathan](https://www.queseas.com/u/Raj.Raganathan)\ **Replies:** 1\ **Last updated:** [May 22, 2023, 5:40pm UTC](https://www.queseas.com/t/operational-principle-of-gyrocompasses/757 "2023-05-22T17:40:57Z")
Good afternoon, Can somebody explain - in simple terms - the operation of a gyrocompass? --- ## [Course over ground or steering course?](https://www.queseas.com/t/course-over-ground-or-steering-course/523)
**Author:** [@ptoul61](https://www.queseas.com/u/ptoul61)\ **Replies:** 1\ **Last updated:** [February 7, 2023, 8:11pm UTC](https://www.queseas.com/t/course-over-ground-or-steering-course/523 "2023-02-07T20:11:19Z")
What is critical for collision avoidance, course over ground or steering course? --- ## [Passage plan and seaworthiness](https://www.queseas.com/t/passage-plan-and-seaworthiness/660)
**Author:** [@Captain\_Tim](https://www.queseas.com/u/Captain_Tim)\ **Replies:** 1\ **Last updated:** [February 4, 2023, 5:10pm UTC](https://www.queseas.com/t/passage-plan-and-seaworthiness/660 "2023-02-04T17:10:13Z")
The UK Supreme Court made a ruling regarding a situation in which a container vessel, the CMA CGM LIBRA, ran aground in the Chinese port of Xiamen after leaving the marked fairway. A declaration of general average was m… --- ## [CATZOC and passage plan](https://www.queseas.com/t/catzoc-and-passage-plan/562)
**Author:** [@Rosencratz](https://www.queseas.com/u/Rosencratz)\ **Replies:** 3\ **Last updated:** [November 24, 2022, 7:42am UTC](https://www.queseas.com/t/catzoc-and-passage-plan/562 "2022-11-24T07:42:24Z")
Hello everybody! Could you please help me understand what is the meaning and importance of CATZOC in passage plans? --- ## [Speed through water VS speed over ground](https://www.queseas.com/t/speed-through-water-vs-speed-over-ground/498)
**Author:** [@Rosencratz](https://www.queseas.com/u/Rosencratz)\ **Replies:** 3\ **Last updated:** [November 15, 2022, 3:43pm UTC](https://www.queseas.com/t/speed-through-water-vs-speed-over-ground/498 "2022-11-15T15:43:51Z")
Which one is more critical for ship’s navigation and collision avoidance: the speed through water or the speed over ground? --- ## [AIS operation](https://www.queseas.com/t/ais-operation/261)
**Author:** [@Paraschos.Liadis](https://www.queseas.com/u/Paraschos.Liadis)\ **Replies:** 1\ **Last updated:** [July 20, 2022, 1:31pm UTC](https://www.queseas.com/t/ais-operation/261 "2022-07-20T13:31:59Z")
What are some recommended best practices for checking the correct operation of the AIS at all times? --- ## [Radar magnetrons](https://www.queseas.com/t/radar-magnetrons/131)
**Author:** [@Paraschos.Liadis](https://www.queseas.com/u/Paraschos.Liadis)\ **Replies:** 3\ **Last updated:** [July 8, 2022, 1:35pm UTC](https://www.queseas.com/t/radar-magnetrons/131 "2022-07-08T13:35:55Z")
What are the criteria for the replacement of a magnetron on X-band and S-band radars?