Exhaust port shield

“But an analysis of the plans provided by Princess Leia has revealed what we think is a weakness in the station’s design. A big ship couldn’t get near it, but an X- or Y-wing fighter might.

“It’s a small thermal exhaust port. Its size belies its importance, as it appears to be an unshielded shaft that runs directly into the main reactor system powering the station. Since this serves as an emergency outlet for waste heat in the event of reactor overproduction, its usefulness would be eliminated by particle shielding. A direct hit would initiate a chain reaction that would destroy the station.”

Mutterings of disbelief ran through the room. The more experienced the pilot, the greater his expressed disbelief.

“I didn’t say your approach would be easy,” Dodonna admonished them. He gestured at the screen. “You must maneuver straight in down this shaft, level off in the trench, and skim the surface to—this point. The target is only two meters across. It will take a precise hit at exactly ninety degrees to reach the reactor systematization. And only a direct hit will start the complete reaction.

“I said the port wasn’t particle-shielded. However, it is completely ray-shielded. That means no energy beams. You’ll have to use proton torpedoes.”

***

Star Wars Trilogy, A New Hope Chapter 11