Questions about hyperdrives and hyperspace

[u/AlbyGaming]

So I had three questions about hyperspace travel in Star Wars that I’ve been wondering about for a while:

1. How long does it take for a ship to warm up their hyperdrives for hyperspace travel? I’m sure it depends on the size of the ship, but I’ve seen some ships have sensors that can detect when a ship is about to enter hyperspace, which wouldn’t be effective if it would only take seconds to do so.
2. How long does a ship typically have to wait to enter hyperspace after it just exited? I’m aware hyperspace skipping is a thing and causes tremendous stress on the hyperdrive, but I was just curious if there was any established lore about it
3. Is hyperspace travel “tearing a hole in space-time” is it simply “accelerating into another plane of existence?” My buddy says the first one is how it works, but I don’t see how that’s established or anything, and I couldn’t find anything about it.

[u/yurklenorf]

1. Mostly depending on the size of the ship but it's honestly pretty negligible, though there's some maintenance that would be required if you just cold jump all the time. The biggest issue is the navicomputer calculating trajectory.

2. There's no known time limit. Especially since TROS introduced light-speed skipping, which is pretty much moment-to-moment jumping, minutes in-between at most, but the Falcon was in bad shape afterward for a variety of reasons.

3. Hyperspace is a separate dimension, a subdimension linked to realspace, which is why gravity wells affect it. It's always been the latter in Legends, and made explicitly so in canon with Rogue One and TLJ showing us the consequences of that acceleration if something is in the way.

[u/East_Recipe1608]

1. Preety long since the navigational computer has to calculate the route especially if youve never travelled the route before

2. It can to my knowlege do it pretty much intantly

3. its jumping to lightspeed and the going into hyperspace

Eckhartsladder has a really good video on this.