If klarius is right I am in awe over Wacken's scientific progress - but how come we are still ahead of them in culture if they've outresearched us so utterly?
Once we have Oslo or Århus, we could prepare for the second war, a massive ROP rape plus bombing of Odense down to size 1. This looks messy, but on the other hand, helicopters are not much better in this situation.
The third war would come after we have claimed Odense in a peace treaty. If we get that far, it should be the last war of all.
With helicopters, the best thing to do would perhaps be to sign ROP, send many units from where the barb camp is now (edit: or from Nicomedia) to the hill SE of Århus and eventually do a ROP rape. But you would also need to bomb Odense down to size 1-2 to get it in a peace treaty, or send helicopters from where the black dot is. It is actually more effective to have an air strip on the continent for quick transport of multiple troops (if we can get one.)
The hardest part of going without Advanced Flight is obviously the small islands. Aurelianorum is a prime example, although it can be bombed down to size 1. And Chinan would have to hurry a great number of troops to be on the safe side.
One advantage of going without Advanced Flight is that Rome won't have infantries. On the other hand we won't have tanks.
All in all, stopping research after Flight is fine with me.
How about it? I had a look at the biggest obstacles. The way I see it, we'd need three wars with Vikings. The first one would require massive bombing of Århus or Oslo. We would need to bomb one of them down to size 1-2, apart from doing the gifting trick before this war. Of course, we'd need an airstrip or town nearby (see map.) If we get Nicomedia in a peace treaty and hurry an airport, we would be able to bomb Århus from there.So how about the high risk option (originally proposed by Megalou ) - no research to AF, try to get a city everywhere by diplomacy.

Once we have Oslo or Århus, we could prepare for the second war, a massive ROP rape plus bombing of Odense down to size 1. This looks messy, but on the other hand, helicopters are not much better in this situation.
The third war would come after we have claimed Odense in a peace treaty. If we get that far, it should be the last war of all.
With helicopters, the best thing to do would perhaps be to sign ROP, send many units from where the barb camp is now (edit: or from Nicomedia) to the hill SE of Århus and eventually do a ROP rape. But you would also need to bomb Odense down to size 1-2 to get it in a peace treaty, or send helicopters from where the black dot is. It is actually more effective to have an air strip on the continent for quick transport of multiple troops (if we can get one.)
The hardest part of going without Advanced Flight is obviously the small islands. Aurelianorum is a prime example, although it can be bombed down to size 1. And Chinan would have to hurry a great number of troops to be on the safe side.
One advantage of going without Advanced Flight is that Rome won't have infantries. On the other hand we won't have tanks.
All in all, stopping research after Flight is fine with me.