Half mile radius

Cutting through the air, he slowed to flying under
the speed of sound. At that speed he could fly almost
soundlessly and without the risk of shattering all the
windows in a neighborhood.

His ability to fly broke most of the laws of
physics, but there were some even he had to follow.

He flew so as to minimize his profile and reduce the
sonic boom he created. If he had to, he could move his
body so as to break up the shockwave. He always felt
a little silly doing it, a little like he was having a
seizure in midair, but it worked for the most part. If he
hadn't done it, he'd have shattered not only the
windows in the woman's car, but the windows in the
airplane and everything else in a half mile radius.

Pg. 4