Thanks, but now I want to know how RP is generated and distributed. OBVIOUSLY its via research percentage, but is it $1=1RP or 1%=1RP? And how is it distributed across priority? Also, are the cost cumulative? (2 techs cost 10, but in actuality the first one cost ten but the second twenty)
I enclosed file analysing research.
Summary
Basic total research points seems 1/18 of research budget.
The priority low is 50 % of original value.
The priority high is 150 % of original value.
Your reserch points are distributed to all areas except that one which are more than 3 years advance (researching 1903 technology in 1900 generates zero RP for that area). The distribution is done by ratio of priority (1:2:3 low, medium, high priority)
All other bellow are modifiers.
If you research area ahead of time, you get 50 % penalty to RP no mater if it is 1, 2 years ahead.
There is random in your research up and down. You can get 50 % random penalty and up to 200 % random change of RP. For some of these random (not all of them) you get monthly reports (hit dead end, make advances in research area etc.)
I think there is cap of monthly reserach as 1/6 of research points for that technology. So giving high priority to areas with 100,000 RP at start of game has not so much sence. It seems that RPs over the cap are lost.
All % bonuses are by coefficient so having low priority (50 %) and have random 50 % gives only total of 25 % of RPs. In case you research area in advance you get 50 % on top of that making total research points only 12,5 %. In case of random 200 % and reseraching ahead of time gives you basic 100 %.
"Unexpected advance" report can give you a lot of RPs. (could be more than 2 times)
"Baffled" report gives you 0 RPs at that area.
Unkown examples
in 1900 sheet - in 3/1901 there is unexpected RPs for AP - reason unknown
in 1902 sheet - in 2/1901 there is unexpected RPs for Fleet tactics - reason unknown as 2 times of max. random 200 %.
note for the file: The months are in recorded as 1901 but it was the first year of the game (1900).
All information above could be easily confirmed in the file enclosed. If somebody finds another usefull information I will be happy.
What I do not know and I would like to know is gun research. In my actual game I spend as AH more than 400,000 RP on that field and still no breakdown. It is around four other fields techs. How it works?
Another question is what means in save file this:
Research1TSL=28
It is going up as research progress and go back to zero when research is done. Could it be some probability of research in that field?
EDIT: I found the file analysing research and update this reply