Pulsejet Engine Vertical Launch – VTOL Pulse Jet Rocket

Pulsejet engine vertical launch – VTOL vertical take off and landing rocket www.beck-technologies.com Pulsejet engines have been overlooked as a propulsion system because most people think they are low power and inefficient. Pulsejet engines actually have quite high power to weight ratios, comparable fuel consumption to RC turbines, and have few or no moving parts, meaning they cost about 1 as much as a hobby turbojet and rarely need any form of maintenance. This is a video of an old demo we did, to show the potential of pulsejets. The engine is an old 1960′s era dynajet, which is not anywhere near optimized, yet it still has impressive lift performance. Sitting on the ground most people dont see the potential these engines have, and are content with saying they are useless, when that couldn’t be further from the truth. Pulsejets could be used on anything from RC hobby hovercrafts and RC VTOL planes, to small UAV’s, and many other things. Dont forget to hit subscribe and check out our channel for tons of other cool stuff!

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    25 Responses to “Pulsejet Engine Vertical Launch – VTOL Pulse Jet Rocket”

    • BeckTechnologies:

      @teodormafia We plan on testing a bigger one of these in the winter, once there is a foot or two of snow pack on the ground. :)

    • BeckTechnologies:

      @wurft that sounds like a great idea… just make sure you have a really good helmet before you do so.

    • teodormafia:

      @BeckTechnologies looking forward to seeing it

    • FireDropTechnologies:

      @BeckTechnologies
      1 ccm of liquid water = 1400, galons by volume of steam .
      So by spritzing 1ccm in too a red hot tube you get 1,400 Gallons
      of steam. That will do alot of work fellows, alot of work. Look at
      Air preshure engins, or the old Case steam tractors, 120hp steam engine,
      will make 5,700flb. at 1200psi. Go have a look at the old Doble steam cars of the 20′s and 30′s.
      They used a tube boiler like I was talking about.

    • FireDropTechnologies:

      @BeckTechnologies
      And yes, think what injecting steam in too the rear of the combustion chamber on one of these would do to the exaughs gas volume!

    • FireDropTechnologies:

      @BeckTechnologies
      Next question!
      What happens if you take a Round wheel shaped spool and cut it so it has paddles around the center, then make the paddles part of the intake for the jet. So the sucktion gives the Disk gyroscopic force and acts as a one way valve. then, could you put a motorcycle carb on the intake?, and for start up spin the disk as a forced induction fan? I think so.

    • BeckTechnologies:

      @FireDropTechnologies I dont think its that high, that would be over a 4 million fold expansion. I think its 1 part water to 1400 parts steam

    • wurft:

      @BeckTechnologies A wild pulsejet appears, it used tackle, it’s super effective!

    • FireDropTechnologies:

      @BeckTechnologies
      Go look at the enthropic chart 1 ccl = 140 galons volume

    • BeckTechnologies:

      @FireDropTechnologies  I’m not sure what charts you’re looking at, but the ones I am are saying at 1 atmosphere its about 1.7 cubic meters for 1 kg of water. 1kg = 1000 ml, so 1 ml would be about 1.7 liters. If it expanded to 1400 gallons, water would be extremely dangerous, every time someone tried to boil a cup of tea, all the air would be pushed out of their house. 1 ccm of water would expand to 5 299 576. Thats more than any explosive i know of.

    • FireDropTechnologies:

      Your forgetting heat exchange sir, when it hit’s the air in your house it cool’s drasticly. changing volume. That’s why steam cars have a super heater befor the throughtle. But to use it in a combustion chambe of a rocket it only needs to hold super hot volume long enough to displace the air at the tail cone creating thrust, for a millisecond or two, then the rocket is past, and it can cool and shrick volume and no one will give a shit the rocket or you and I. And that 1400 volume at 0 preshure.

    • FireDropTechnologies:

      you can compress steam alot like you can compress air.
      You can infact compress it back to a liquid, and call it Wet steam
      Or super heated steam. This form of steam not only flashes to gassious state
      The second it is freed of it’s container, but if the temprature it is free’ed in to? Is lower than the boiler temp? It will expand to about 3 times it’s super heated volume, untill it cools past 375 deg. or so and starts to shrink volume again.

    • FireDropTechnologies:

      And steam tripples from 370-200 deg. but begins to shrink after that point in temp, but for a rocket? you want it coming in to the exaughst Gas at about 375 deg, F. and cooling as it exits the Tail cone , best if it’s fired in pulses like the intaks fuel is, so that it gives a burst of fuel air fire, (jet breaths in)/ Steam hit’s exaughst port, (jet fires)

    • BeckTechnologies:

      @FireDropTechnologies I’m gonna have to call BS, you quoted a volume expansion that could only occur in a vacuum pumped full of radiation, and are now googling you’re way through steam references. Steam does not expand 5 million times in volume on earth, nor the vast majority of the universe.

    • MultiIPwnage:

      IS IT POSSIBLE YOU CAN CREATE A BETTER PULSE ENGINE VTOL, I WOULD LIKE TO PROPOSE A IDEA… MAKE A QUAD PULSE ENGINE PLATFORM SQUARE HAVE THE THRUST FACE DOWNWARD, THEN HAVE A COMPUTER CHIP THAT CAN CREATE A VIRTUAL GRID (SURFACE) AND HAVE IT KNOW HOW HIGH YOU ARE FROM THIS VIRTUAL SURFACE, THEN HAVE EACH ENGINE ONLY INJECT FUEL IF ~ A CERTAIN HEIGHT. THAT WAY YOU CAN HOVER, AND THE SQUARE QUAD ENGINE SHAPE WILL NATURAL STABLE IT AS EACH THRUSTER WILL LEVEL AT MULTIPLE CENT GRAV AT A ALTIUDE

    • magnum9987:

      You should get gov’t funding. Should be easy.
      And couldn’t you run two combustion chambers through a single exhaust like a Y-Pipe? And then time the pulses to coincide and use the venturi effect to get more thrust and efficiency?

    • BeckTechnologies:

      @magnum9987 You only get gov. funding if you give the politicians lots of $

    • alex0rz:

      alright guys…it’s time to go global and work as a community to get these innovations in the spotlight. our nations are way too busy trying to win a never-ending pissing contest…

    • DiamondPilotDan:

      worlds loudest lantern

    • cowsrock94:

      the only problem with pulse jets in modern tech is that they get extremely hot on their outer surface, and are loud as hell.

    • BeckTechnologies:

      @cowsrock94 And rocket engines dont?

    • cowsrock94:

      @cowsrock94 I think theres a difference, the body of a pulse jet gets white hot and takes a long time to cool. it just looks like more of a burn hazard to me. And in my opinion rockets make a loud “whoosh” sound that doesn’t have the same “oomf” as the noise from a pulse jet.

    • TheNWONOW:

      Install a gyroscope stabilization system and let that rip rip free air!

    • arnold02000:

      @BeckTechnologies True. Senators must be greased for favors, especially during election campaigns.

    • DynaDuctINC:

      @BeckTechnologies But what about the Y pipe thing?

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