Wave Pulse Jet Engine

[T28B]

Originally Posted by MechEngr

Santa has a sleigh, right? And it flies, right? So, aviation content that even Norad says they track. Here's Maddox's pulse jet propelled sleigh flying.
https://www.youtube.com/watch?v=yDRJItKqClk

Where does one put the bag of toys in that rig? The engine is taking up that location.

[MechEngr]

Originally Posted by T28B

Where does one put the bag of toys in that rig? The engine is taking up that location.

I am not a snitch.

[falcon900]

Originally Posted by T28B

Where does one put the bag of toys in that rig? The engine is taking up that location.

It is the toy, you stupid boy! He was delivering it to some lucky kid.

[tdracer]

Originally Posted by ORAC

From the article:
In terms of fuel efficiency, the company has demonstrated thrust-specific fuel consumption (TSFC) levels under 2.0 pounds/pounds-force per hour, which it says rivals the efficiency of more complex and expensive turbine-based engines.

Wave Engine combines its pulsejets with Full Authority Digital Electronic Control (FADEC), in which a computer controls engine performance, and this may well be key to achieving the stated levels of efficiency, as well as optimizing performance more generally.”……

I guess it depends on what "expensive turbine-based engines" they are talking about. If they are talking a simple pure-jet turbine, they could perhaps get close to the same TSFC numbers. But when you start comparing to a modern turbofan, a simple cycle efficiency analysis would make competitive TSFC numbers wishful thinking.