First and foremost, we all know the dangers. If you don't feel free to read this this adventure or this one in closing wormholes gone wrong.
So the basics.
For a 2Bkg wormhole, the true mass allocation will be roughly 1.8Bkg to 2.2Bkg. I have pretty well seen both of these extremes. The first "mass tick" from "Has not had" to "Has Had" on the show info appears to be right at 50%. The last "tick" from "Had Had" to "Critical", I am still not sure of. Until a recent experience with a 3Bkg hole, I thought for sure it was 5%. But when my Orca (250Mkg) failed to close a critical 3Bkg hole that had just been made critical by a retreiver (20Mkg), I have had to rethink this number. So for best guess this number is between 5% and 10%. I would hate to think that CCP has also added variability to thios number as well. For what I do, I have always assumed it is 5% to be safe.
In general, to close a hole you want to get a big ass ship on the "away" side with the total mass used as close to but not over (The Prices is Right) the Minimum Mass Allocation. This ship should be at least 10% of the Maximum Mass Allocation of the hole. Then simply drive small ships, with twice their mass under 5% of the Minimum Mass Allocation, through and back ONE AT A TIME until the hole is critical. Then return teh big ass ship to the "Home" side and hole shold close.
What you need for a 2Bkg Wormhole Closing:
- 1 big ass ship. Need mass of at least 220Mkg. Orca works great, but so will Battleships with armor plates, 100mn AB, or 100mn MWD.
- Medium Sized ships of any size
- Multiple small ships. Key here is two passes must not close hole if it is not yet critical. So I have always been very safe and assumed 5% of the 1.8Bkg "smallest hole possible" and gotten 90Mkg. So a 45Mkg ship would be perfect. The Hulk and Covetor at 40Mkg do very nicely.
If you know you just opened it and you have all the mass allowed then start with big ship passes and try to get the mass to right at .8Bkg. The key here is you want to see the mass tick over when a smaller ship passes. This will allow you to confirm the hole has not been used.
I do this with 2 Orca passes (away and back home) and two Abby passes (away and back home). Mass used 706Mkg.
I now pass the Abby back through to Away side. Mass used 809Mkg. And then back through. Mass 912Mkg. If the mass ticks here I know I have either a small massed hole or someone has used it.
So based on that I pass the Orca through and back. Total mass 1309Mkg.
At this point, I swap the Abby for a Hulk/Covetor.
Wait 4 minutes, and jump the Orca back through to the away side. Mass 1559Mkg.
If the Critical message is 10% then the hole will show critical at 1.62 to 1.98Bkg.
At this point I call every Hulk and Covetor available (and retriever and hauler for that matter) to the wormhole and ONE AT A TIME have them move "Away and Back" until the mass ticks over to Critical. Could take as little as one pass, or as many as 5 or more. Once everyone is on the "home" side the Orca returns and closes the hole.
Thats the "quicker" way. If you have more big ships the feel free to eliminate the 4 minute wait times that are in my system. Mine is based on using the three accounts I have.
Also I can not imagine trying to close a wormhole solo. To variable and would be very difficult.
Once we, have two orcas and two pilots and multiple BS's also, I might tweak the process. But for now I am pretty certain on the method and the only time it takes long is the very big holes where multiple small ship passes are needed and I am the only one on. Usually we can marshal 4-5 small ships and that defiently makes it go faster.
Note: For high sec Orca runs, I use solely the Orca and as long as the mass ticks at 4th and 7th pass, I am confident the hole will close. If mass does not go critical on 7th pass, then a few Hulk passes will usually do the trick.
Hope this helps.
1) get big ship on away side with mass just under 90% total allowed mass
2) repeatedly fly small ships (2 x Mass < 5% Wormhole mass) one at a time away and back till mass goes critical
3) fly back big ship