Untitled attachment
https://files.mastodon.social/media_attachments/files/114/218/935/593/060/384/original/22d20f43653964fb.png
That distance is important, as there was an identical battery set up on Scattery Island, north across the island, about 2 miles distance. So, in theory, an enemy ship trying to pass through the estuary and up the Shannon river would have been subject to fire from one or the other. There were at least six such batteries positioned along the Shannon to provide for it's defense.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.