Stealth Bomber Flyby Is Just As Quiet As You’d Expect Military by Chris Clarke - 01/08/201702/09/2017 The B-2 Spirit stealth bomber has been engineered with low observable technology to reduce its radar and infrared signature, making it hard for the enemy to pick up. It's also acoustically stealthy, as you can tell from this recent B-2 flyby: https://www.youtube.com/watch?v=XbH4D5IW6eA