Practice Bubble Horizon Code of Safe Working Practices for Merchant Seafarers An ERRV may be required

An ERRV may be required to perform routine standby duties during over side work from the installation or during helicopter landing and take-off operations

Toolbox talks

This user-friendly book covers topics such as: field connections

NOAA Nautical Chart 18685: Monterey Bay

Practice Bubble Horizon Code of Safe Working Practices for Merchant Seafarers An ERRV may be requiredAt long last, here is a way to effectively practice taking sights without having a natural (sea) horizon, and without spending hundreds of dollars for a Professional Bubble Horizon. With this, you can use the same sextant you will take to sea, and use it in a normal manner to take sights from your backyard. It differs from the more expensive professional bubble horizon in that it is not as accurate, is unlighted, and has less light gathering