Re: Ship anchors?
On Aug 21, 2020, at 08:16, Edward <email@example.com> wrote:
Anchors for a flatcar load would be more like those used on large naval vessels and ocean going ships since the late 19th century, having two large flukes attached to a shank with an eyelet for attaching the anchor chain. At about 10 tons or so each, four such anchors would make a good flat car load, held in place with wood blocking. The attached photo will show the scale of these anchors, from a person sitting by it.[alert: era-dependencies at work]
There were (and in a few cases still are preserved) sailing ships built in the late 19th century and even a few steam axiliaries built in the early 20th which carried the sliding stock anchors. Balclutha, 1886, Connell & Sons, Glagsgow (one of the first 20 or so steel-hulled sailing ships) is currently resident at the only floating national park in the US and its territories. The more modern naval anchor doesn't cat up like the earlier design, so even the early steam auxiliaries with the more traditional hull shape carried the earlier design of anchor.
Nolan Hinshaw, docent emeritus, footnote 
 for non-military use, steam was for high-priority cargoes, like people and mail - vide the Pacific Mail Steamship company. For the lower-priority cargo, sail was still for a long time less expensive to operate than was steam, especially for bulk haulers.
 San Francisco Maritime National Historical Park: <https://www.nps.gov/safr/index.htm>