Davey_Pitch said:
None, except maybe to upgrade the speed of your ships slightly. I'd rather spend the res on actually getting the ships.
For him, I'd say leave upgrading it until you have more ships, and can afford it relatively easily.
I'm surprised you don't upgrade them though.
More speed = more raids = more profit.
It also gives people less time to see you coming, so theoretically it makes crashes more likely to be successful.
I have Combustion 11, Impulse 9, and Hyperspace 7.
I'm considering upgrading to Combustion 12, so my fleets aren't slowed down quite as much by large cargos.
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More info for those interested:
Each level of Combustion increases the speed of combustion powered ships by 10% of their base speed.
Impulse by 20%.
Hyperspace by 30%.
You can tell what powers a ship by looking at its requirements on the technology page.
Obviously a fleet can only go as fast as it's slowest ship (usually combustion powered).
At Impulse 5: small cargos become impulse, not combustion.
At Hyperspace 8: bombers become hyperspace, not impulse.