[Increasing the range of TNT carts]

I've sorted it, thanks. It was a simple matter of hitting the launch rails with a crowbar (duh).

I'm not sure what you mean by interfere with their movements, since unfortunately the ships can't move. Maybe we could use motors? Though the ships are 150 blocks long, I'm not sure that would be practical.

[Increasing the range of TNT carts]

Hello there,

I am here requesting help on a matter of TNT carts. I and my friend will be having a colossal space battle with some space ships, however, TNT carts, one of the main weapons don't seem to go very far. Does anybody know how to increase the range of how far they can be launched? I'm using a primer and then a launch pad with a few powered rails and 1 booster rail before hand.

Whilst I'm here, does anybody have any good tips or ideas they have for this battle that could prove to be useful?

Thanks!