The compression requires 1 minute per job without skill, or 48 seconds with Industry V

The Industrial Core - It is possible to `'siege'' the Rorqual, using the Industrial Core I module, even inside a POS bubble. Fueled by Heavy Water, the Industrial Core's main advantage is allowing the Rorqual to compress ore directly on site using Dofus kamas special BPO seeded on the market at the price of 100k each.

The compression rate is of 40 for empire low-end, 20 for other ore and 10 for ice ­ not negligible. Just like for a refining batch, you need an exact number of units to make a compression batch, shown in the next table.

The compression requires 1 minute per job without skill, or 48 seconds with Industry V, which you should already have by now.

Capital Tractor Beam - I admit that the idea behind them is great. With a tract ring range of 200KM, the Rorqual can comfortably sit in a belt, tractor can to itself and compress on site... no more hauling!

This is however rarely the case at the present time in the practical world. Since the Rorqual needs to be sieged for 5 minutes to be really efficient, it's also dangerous. For this reason right now, Rorquals are mostly seen within the security of a POS bubble.

Since you need 70% capacitor to jump, if you need to travel through many systems, you'll also appreciate the shorter wait.