posted on May, 13 2012 @ 02:20 AM
I have listened to many recordings of 'strange rumblings' in the sky and believe I have stumbled across a very viable explanation.
Turbojet and turbofan propulsion have been mainstays of aviation since the fifties and have reached the limits of their efficiency. In the search for
a better form of propulsion, some believe that the old technology of pulsejet engines can be made new again.
Pulsejet engines have had military applications since at least WW2 when the Germans used them in 'buzzbomb' attacks against England.
Here is a very 'typical' sounding pulsejet engine:
If anyone can embed the video, I think many will find the sound of a simple pulsejet engine to be uncannily similar to the sounds recorded relating to
rumbling in the sky.
Say hello to the future of military aviation?
edit on 13-5-2012 by NightShift because: (no reason given)