Jump accelerator

I’m in the mission where you’ve got to capture the formuhault jumpaccelerator.
The first part of the mission is easy. But when I have to destroy those LDA-nodes things go wrong. They seem indestructable. Any help on how to destroy those nasty things would be nice.

I’ve tried my gatling cannon and a cuttingbeam. I even destroyed two of them (I think) but I can’t do them all in time.