Moderator Action: Moved to Civ4 General Discussions
IIRC, building planes requires that you have oil hooked-up (which also means that you need combustion to build oil wells - you should have that, as it is a pre-requisite for flight).
It happens at random, although you can often find it in arctic or desert locations (and coastal locations, although they require a different tech than combustion to hook-up with oil platforms - can't remember off-hand what it is). Oil is revealed on the map when you discover scientific method.
You can always look to get it via trade or via conquest....
that also is good to know, I really had no idea and I have two games going right now at that stage, so will get my work boat to stop automated improvements and find me some oil.Plastics is the tech you need to build offshore platforms if your oil is in the sea, which uses a work boat in the same way as fish, clams, etc.
It happens at random, although you can often find it in arctic or desert locations (and coastal locations, although they require a different tech than combustion to hook-up with oil platforms - can't remember off-hand what it is). Oil is revealed on the map when you discover scientific method.
You can always look to get it via trade or via conquest....
If you are enjoying the game, I agree that the BTS Expansion pack is the way to go.
Welcome to the Forums SensFan71.![]()