If we go flight, we lose one of the prebuilds.
When looking at what to do with the lost prebuild i came to another thing. If we swich Washington to Coal Plant, it will get 60 shields. 68 if we use tiles from Chicago. Now if Washington was to build the Hoover, this would not be usefull as the Hoover is gonna bring us that increase anyway. If we delay the Hoover, swiching to Coal plant and taking those tiles from Chicago will give us a still ToE in 10, but with a free coal plant.
The wonder build in SF could then either be used for another wonder, but they all look pretty useless, so there i would then also build a coal plant.
I agree with Xevious Timeline.
So now is to compare those timelines. I'll make them both, stating only what really matters here.
Hoover first:
15: Hoover & Golden Age
22: Flight
34: Advanced Flight
35: END GA
Flight first:
15: Flight
26: Hoover & Golden Age
38: Advanced Flight
46: END GA
First i take a look at our cities. I concider a city ready for war when it has a factory. StDman and Houston i consider lost for production, they wont get a factory anywhere soon, and their productive tiles can be use by neighbours.
I round all numbers to multiples of 5 here.
We will have the following shields available for production
Within 5 turns: 20(2), 25, 30(2), 35, 45
total Within 15 turns: 15(2), 20(4), 25, 30(2), 35, 45
GA and Hoover together would create roughly the following productions:
30(2), 35(3), 40(3), 50, 60, 65, 80
If we go flight first, We should build stronger units and not units for upgrade as we need them before gold is available. We would in 15 turns have roughly the following units:
Washington would be building ToE for 10 turns, then HooverDam.
SF would have a coal factory and go from 34 to 45. = 7 cavs.
35 city = 5 cav
25 city = 4 cav
20 cities = 6 cav.
Total 17 cavalry and 5 muskets When we get flight. Adding our current army would make that 20 cavs.
Until GA, We would then have 11 turns more to produce ~30 units (3 units per turn)
Between GA and AF(12) we would produce 55 units. (4.6 unit per turn)
Then after AF, we have 8 more turns of golden age to produce about 5.5 - 6 unit per turn using gold on shortrushes.
Now if we go Dam first, we would have first 15 turns to produce say, 10 cavs and 20 pikes/horses.
We'd then have Hoover and Golden age, boosting our production. In the 7 turns until flight we would produce 39 cavs.
Then when we get Fligth, we would have 12 turns till AF and. In those 12 turns we would build 55 units (bombers, cavs or tanks)
After AV, we would upgrade 2 units per turn and production would go down to about 3 units per turns for about 5 total units per turn.
So now getting everything together:
Flight:
15: Flight. 20 cavalry.
-3 units per turn.
26: 20 cavalry + 30 bomber
-4.6 unit per turn.
38: Advanced Flight. 20 cavalry + 85 bomber
-6 unit per turn
Dam
22: Flight. 49 cavalry + 20 upgradable (or 59 cavalry if we want)
-4.6 unit per turn.
..........26: 49 cavalry + 15 bomber + 20 upgradable
34: Advanced Flight. 39 cavalry + 55 bomber + 20 upgradable
..........38: 49 cavalry + 70 bomber + 20 being upgraded.