Video: Santa Claus will visit kids this year with a jet-propelled sleigh

Do you remember Jet Coffin?

Robert Maddox also appeared on Halloween in the Jet Coffin. The four-wheeler has a coffin-like body that is 7 feet long (2.1 meters), coffin handles, a coffin lid in place of regular car doors, wide tires, a go-kart independent rear axle, and of course, a steering wheel.

The coffin is constructed from Baltic birch plywood and painted black to give it a more spooky appearance. A 100-pound thrust valved pulsejet engine that burns propane and diesel powers Maddox's coffin automobile, as per Autoevolution.

What are pulsejets?

An engine that burns in pulses is known as a pulsejet engine or pulse jet. A pulsejet engine can be built with little to no moving parts and run statically. Despite having a low specific impulse and a typically low compression ratio, pulsejet engines are a lightweight jet propulsion method.

The simplicity, low cost of manufacture, and high noise levels of pulsejet engines are its distinguishing features. Although the thrust-to-weight ratio is quite good, the fuel consumption for thrust is relatively low.

They are typically unsuitable for use outside the military and other tightly controlled ones due to their excessive noise levels. However, because pulsejets can run on nearly anything that burns, including particle fuels like sawdust or coal powder, there has been a rebirth in research into these engines for applications such as high-output heating, biomass conversion, and alternative energy systems.