

Ooo minimum? Dont recall that exactly but I do remember the mechanism that arms the missile is activated by G force. Missile has to fly for a bit before it arms.
Second part of your question is pretty loaded. Theres tons of unguided systems that have wildly different arming mechanisms.
Really what you care about is stand off distance. Can I hit my enemy with my missile before they can get into range to shoot me?
Oh oh oh! I’ve actually done this! I was a TOW gunner that had to try and find 3000 meters of wire from a training range after I was done shooting. It fucking sucked and took hours lmao ain’t no fucking way you’re doing that AND getting shot at.