You can take down a jet with a brick.
Prerequisites: Dex 13, Improvised Weapon Proficiency
Benefit: Whenever you throw an Improvised Weapon, there is no maximum number of Range Increments.
Note: You still have to be able to see something to throw a ranged weapon at it, so having no Range Increments does not mean you can throw a rock at someone over the horizon or on the Moon, regardless of your attack’s potential range. But yeah, you could throw a brick at a jet.