evilauthor wrote:Honestly, the best answer seems to be, "Because the Archangels didn't give much thought to naval tech at all."
After all, all the historical savvy people seemed to have been part of Shan-Wei's faction. The rest wanted to lock Safehold in as primitive a tech setup as they could get away with. So it would seem reasonable to a bunch of non-sailors who don't know nautical history to limit naval tech to square sails and oars.
On further thinking, I'll bet the Archangels didn't think Safeholdians would need anything more advanced than a coastal fishing boat. Galleons were invented well after Creation when the remaining angels realized that the out islands and other remote settlements that could only be reached by water needed some way to connect with the Church that did NOT involve an angel in an aircar.
Galleys are a logical extension of the rowboat, and likely created to help police coastal areas. And eventually help kingdoms war with each other.
Edit: Furthermore, coppering the bottom of ships is a response to a problem that wouldn't make itself evident to a non-naval minded person until wooden boats and ships have been in operation for extended periods of time. It's an easy thing to overlook until your boat operating flock starts coming to you complaining about the bottoms of their ships being fouled.
By the same token, non-naval minded people wouldn't realize the value of triangular sails or sextants or all the other naval refinements that Charis produced before and after Merlin.
You are assuming Shan-Wei wasn't part of the decision of what technology was allowable, however we know that both draft dragons and messenger wyverns are product of genetic engineering of her crews.
She was working with Langhorne for 70 something years, and I assume the terraforming crew was very much involved in the acceptable and the necessary tech while the terraforming was still underway, as they were the ones who knew best what the colonists had to know to survive.
At least one naval-savy person must have been involved;
Someone worked out the blueprints for the first galleys and galleons that were handed to the colonists, and even if you know nothing about ships, knowing where you are seems like a very good idea.