MateDow: I have a couple of suggestions and then a request if you don't mind. These are my opinions and do not necessarily represent the other CORE team members or Paradox.
Suggestions:
1. I would keep in mind that your starting tech tree is one level ABOVE what you feel is the start point for your lowest country. Your default start equipment does not have to be on the tree. I think you have gone back too far here in your start as your tree appears to imply that starting tech is coal fired vessels? However, this may be true, i am not a Naval historian. Others can input.
2. Tech tree is an abstraction to create events and triggers for the game simulation. Just because a tech is real and required does not mean it must to be in the game unless it meets the aforementioned requirements. In other words, i start from the opposite end and say what hooks do i need first. Then i figure out what tech in an abstract way would fit this most logically. My concern is that the depth of your tree is going to create too many small [1 IC*150 day] techs to research. I would have aproblem to support that.
Request:
your detail here is excellent, but does not appear to be aligned with the concept that i started this thread. I proposed this as a complementary work once i deduced Shep's direction with his TechMod work. My intent with this thread is to examine the economic and industrial sides of the tech tree and how they can inter-relate to manage the military tech side. Shep has confirmed his direction and offered some thoughts in this thread for us.
One of the first steps in my mind is to look at the costing side. To do so, i need some benchmarks to work against. My interest in the Liberty/Victory/DDE's is that they can form the economic basis for costing Naval ships as they were very high volume runners and so can represent the top end of the scale. i.e. Best Case Scenario for the timeframe in this simulation is set. Worst case is easy, the italians!
just joking, sorta!
Your proposals here are appear quite focused on Naval Tech progression and i would ask that you really work this in with the other threads that are working in that regard: Shep's TechMod and the Naval Mod threads with Generalissimo is particular. I do not want to start a new Naval thread as i am not technically competent to do so.
If i have mis-interpreted your intentions, my apologies, and please elaborate on your intents so that i can work them into mine. I do not want to replicate work.
If i have assessed your intents correctly, can you have one of the moderators move your posting here to the appropriate thread so that it can get the input and attention it deserves?
Thanks.