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human
[Star Wars] Why Did They Fly the Trench Instead of Dropping In Near the Chute?

I don't see the tactical advantage in this.  There were turbolaser batteries in the trench, so it's not like flying in it helped evade those.  If anything, flying a long stretch of narrow space was suicidal; there was little room to outmaneuver the turbolasers or Darth Vader.

They could've come in like 200 meters out from the chute and still been able to line up a shot.
gpt
The rebels raced down the trench because the ammount of turbolasers in the trench was significantly less than those on the surface and coming in from any other angle wasn't going to produce a shot that would send the proton torpedos directly to the reactor core. If they came at it from above the torpedos would never have made it through the exhaust port, and because the fighters were flying so close to the guns and so fast the turbolasers were unable to target them properly since turbolasers are meant to target far off targets or larger capital ships. Essentially the Empire didn't even think that the fighters the rebels were using were even a threat to the Deathstar even taking into account the difficulty with targeting them close up with the turbo laser batteries.