0:00

Look, a miner 3k away. Let's start boosting towards it!




0:05

Okay, about 1.5k away. Better stop boosting and hold on the back thrust key so I don't overboost like a pilot who sucks.




0:10

Mrahaha! 58 mps! The target is almost within range!





0:15

Managed to do some damage as it went past me, and I'm doing a cruisy 3mps.
I can just spin around and follow it, firing pretty much the whole time.





0:20

It got away from me a bit, but my guns easily reach 240m.




0:25

Their sheilds are down!





Summary

25 seconds to get its sheilds down, and about half a tank of fuel used.

Just in case you missed it:
You need to stop boosting and start braking at about 1.5k out from the target