Tractor beam safety: ten rules for cargo retrieval
Every one of these rules was written after somebody turned a recoverable hull into a debris field. Most of them cost nothing to follow.
I spent twenty-two years pulling things out of places they should not have been, and I have watched most of these mistakes happen in person. None of them were made by careless people. They were made by competent crews under time pressure who had not thought about the specific failure in advance. That is what a rules list is for.
The ten
1. Survey before you grab. Two minutes of sensor sweep tells you where the structural members are. A capture that loads a spar is a recovery. A capture that loads a hull plate is a hole.
2. Match the gradient to the damage, not the mass. A 900-tonne intact pod takes hard gradient happily. A 200-tonne hull with a compromised frame needs feathered. Mass is not the variable that matters here.
3. Cancel the tumble before you translate. Every time. Pulling a spinning mass toward you converts angular momentum into a problem that arrives at your hull.
4. Never capture through your own structure. If the beam path clips a pylon, you are loading that pylon. The TBP-8 needs a clear 40° cone and will warn you, once, before it scatters.
5. Assume the target has stored energy. Pressurised compartments, charged capacitors, an intact power cell that has been baking for nine years. Approach the side you would rather be on if it lets go.
6. Watch your own attitude. A capture applies a reaction to your hull. On a small ship against a large mass, you are the one that moves. Have thrusters ready.
7. Two operators, always. One flies the approach. One watches the beam load and the target's structural telemetry. On a good day the second person is bored. Keep them.
8. Release is a manoeuvre, not a button. Dropping the beam instantly leaves the mass with whatever momentum you gave it. Ramp down or you have just launched something.
9. Log the capture profile. Which gradient, what load, how long. When an insurer asks — and they ask — the log is the difference between a claim and an argument.
10. If the target is coming apart, stop. A hull actively shedding structure is not a recovery job. It is a debris containment job, and those are done with nets, not beams.
The rule behind the rules
Every entry above is a specific case of one general principle: a tractor beam applies force to a structure you did not design and cannot fully inspect. Treat the target as fragile until it has proven otherwise, and treat your own hull as the thing you are actually protecting.
On automatic tumble cancellation
Modern projectors will cancel a tumble without operator input, and this is genuinely good — it cuts a typical derelict capture from twenty minutes to four. It has also produced a generation of operators who have never cancelled a tumble manually and do not know what the beam load looks like while it happens. Practice it dry. The automatic system will fail eventually, and it will fail while you are busy.