CLEARANCE: Above Top Secret
- Apr 2, 2006
- Reaction score
Could be handy, if say you needed to drop into some village in Pakistan, say, as an example, I'm not picking on Pakistan. Also just on that, lets assume this is pretty quiet, but not silent.The primary advantage of that patent is that it reflects fan and engine noise upwards .. away from NIMBY listeners on the ground.
In comparison, modern airliner noise is primarily from engine fan noise reflected forwards.