Talk:Extractor/@comment-210.187.178.227-20140831150038/@comment-205724-20141208005251

As long as you keep sending out drones with 100% health, you'll be fine.

One a drone finishes harvesting, it can no longer be damaged... meaning you can send'm out; then go on vacation for a week, elope with a native, get married, then send for your things a few months later, then get internet working & your extractors will be fine (maybe slightly damaged, the norm is anywhere from 0%-40%dmg)

If you're an active player; I'd recommend making 2x as many as you can send out, so you can always have one on a planet while the previous Extractor is healing:
 * Mastery 0–4: 1 drone
 * Mastery 5-9: 2 drones
 * Mastery 10+: 3 drones
 * Founder/Prime Access: +1 drone each