Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
Either by directed fire-star-shell illumination-or by uncannily accurate chart-work, they had put some heavy shells exactly where they would do the most damage.
All volunteers are provided with training in visual observation techniques, marine chart-work, Ordnance Survey mapping, critical reporting, Marine radio procedures, and radar, ensuring all volunteers reach the standards expected by the Maritime and Coastguard Agency.