Rocketman: building the Viper 50, 50 pound thrust valveless pulsejet.

Ғылым және технология

In this video I'm building my Maddoxjets Viper 50, 50 pound thrust valveless pulsejet engine running on propane. I sell kits, plans and complete engines for the Viper engine both in propane and diesel power, for kits and engines just email me at rrocketmann@charter.net and I will give you all the prices and get your engine out to you.
All valved engines are available at www.maddoxjets.com.

Пікірлер: 55

  • @highvoltagefeathers
    @highvoltagefeathers6 жыл бұрын

    I love the new format. Production quality is fantastic.

  • @MrBen527
    @MrBen5276 жыл бұрын

    Looking good Bob!!!

  • @olafschermann1592
    @olafschermann1592 Жыл бұрын

    You are awesome! Respekt for instant start!

  • @willg125
    @willg1252 жыл бұрын

    I would love to see a small lightweight coupe with two of these strapped to the sides. What kind of extra thrust would you get on a vehicle that size?

  • @estebanquito356
    @estebanquito3566 жыл бұрын

    You Sir have won a new subscriber

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    I bope you & bob will be very happy together

  • @timcoleman8964
    @timcoleman89646 жыл бұрын

    I see you have played with the Gluhareff pressure jet engine. I spoke to him a few times when he was alive and selling plans, kits and complete engines. He said that he never could get it to work in the inline configuration. Always wondered about it's efficiency compared to other pulse jets. Love your videos, and work. Best wishes!

  • @RobertMaddox

    @RobertMaddox

    6 жыл бұрын

    Yes, I will be doing a video soon! it is the only engine I ever made fro a plan, I don't sell the engine but it's really fun.

  • @timcoleman8964

    @timcoleman8964

    6 жыл бұрын

    GREAT! Looking forward to watching that.

  • @user-ui6ef5ei7t
    @user-ui6ef5ei7t3 жыл бұрын

    Bob ...the man the mythe the legend

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    Nope just a fool, making inefficient engines that cant be used for anything practical. He might as well be trying to build a steam engine, coz these things are useless

  • @Craig52-zq1bt
    @Craig52-zq1bt8 ай бұрын

    Excellent!

  • @phanorkner
    @phanorkner6 жыл бұрын

    You should invite Collin Furze out to the event. He could learn a thing or two from you. When will you be in Cedarville next? I live in Alturas and would love to come see these in person.

  • @RobertMaddox

    @RobertMaddox

    6 жыл бұрын

    Cool! I will be posting when I'm there and will be there a lot this summer! Colin is a big inspiration for me, not for pulsejet stuff but for starting his own channel and making it big.

  • @Kalanchoe1

    @Kalanchoe1

    6 жыл бұрын

    Collaboration with Colin would give you some much-needed and deserved exposure!

  • @yodu45

    @yodu45

    6 жыл бұрын

    the kettle pulse jet.............

  • @RobertMaddox

    @RobertMaddox

    6 жыл бұрын

    Actually Colin emailed me and said he may be in the states this your and might stop by, that would be cool!

  • @Doobie2100
    @Doobie21002 жыл бұрын

    Kickass!

  • @preciousplasticph
    @preciousplasticph6 жыл бұрын

    Have not seen your channel for awhile, nice to see you are working with the valveless designs. Have you experimented with the gluharef jets?

  • @basedalgobro
    @basedalgobro3 жыл бұрын

    thats amaizing do you have the plan for these i am currently making mine... also how is it instnt start? is it the precise geometry?

  • @oscarkromhout7621
    @oscarkromhout762110 ай бұрын

    What i really dont get about these engines. How do you prevent backfiring into the fuel inlet/ propane tank?

  • @randylyon2063

    @randylyon2063

    Ай бұрын

    There's no oxygen in the propane tank so that is impossible

  • @user-ht4gz9er7m
    @user-ht4gz9er7m5 жыл бұрын

    ชอบครับ

  • @anzac407
    @anzac4073 жыл бұрын

    That one moment at the end

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    Yeah all that work for one moment, lol

  • @macedorobinson1532
    @macedorobinson15326 жыл бұрын

    Good

  • @bearshield7138
    @bearshield7138 Жыл бұрын

    nice

  • @jasonbrown7258
    @jasonbrown72586 жыл бұрын

    I like how simple the valveless pulse jet is. Looks like they give off lots of heat and burn clean. My question is why couldn't we build a chamber around it like fire brick and run the exhaust through a insulated flue to run forced air to heat a building. Idk just a thought.

  • @iloverush123

    @iloverush123

    5 жыл бұрын

    I would think that the main problem is these are not very efficient if heat if the primary goal, and the secondary is just how incredibly loud these things are. They produce large amounts of power for their size/simplicity, and that's really it lol

  • @namibjDerEchte

    @namibjDerEchte

    3 жыл бұрын

    It was a concept for building heating many years ago.

  • @brixtonha
    @brixtonha2 жыл бұрын

    How long does a tank of propane last for the 50lb thrust?

  • @azagoldtwin
    @azagoldtwin4 жыл бұрын

    cuanto combustible consume x minuto ...????

  • @geodes4762
    @geodes4762 Жыл бұрын

    How long can these run without melting. The heat they produce looks incredible. Any way to cool them?

  • @JoyeMusiccom
    @JoyeMusiccom3 жыл бұрын

    Love the engines and how you show the process of making them. I'm interested in the possibility of making an infrasonic sound weapon around 10-20Hz (instead of your 108Hz). Of course, it should be very loud, like 150 dB SPL or greater at those frequencies. Do you think simply lengthening the two pipes would do it, and/or would you go for upsizing the combustion chamber (either way will lower the resonant frequency). Estimating the SPL would be difficult; probably a prototype would be needed.

  • @Tony770jr
    @Tony770jr6 жыл бұрын

    Is there a way to make one about 20% of that size for model airplanes?

  • @stfigir
    @stfigir2 жыл бұрын

    How do you start it without an air blower? It starts only with a spark plug?

  • @shadowdeslaar
    @shadowdeslaar Жыл бұрын

    I think me making a tin can version is 200% more impressive. Jk. THAT IS GORGEOUS. Dude. Wish I had a Workshop. Great work. (Try to use Alcohol or Something similar). (High Percentage).

  • @raubencreed1226
    @raubencreed12269 ай бұрын

    Would a 180 air intake pipe to the intake after warm-up, blow out your burn? In other words, why is the intake facing backwards from oncoming air? Thanks 👍🏻

  • @solotron7390
    @solotron7390 Жыл бұрын

    If the engine is valveless, how is air directed out the exhaust and not the intake?

  • @todydn
    @todydn5 жыл бұрын

    I'mma put that 150 on my little boat

  • @Spoif
    @Spoif6 жыл бұрын

    Try 2GF(R), 6GF(R).

  • @will3346
    @will33466 жыл бұрын

    what is the welding skill required for a project like this? can someone that just starting out make acceptable welds?

  • @RobertMaddox

    @RobertMaddox

    6 жыл бұрын

    Well, it is a tig weld and not for a real new guy, however if you find a local fab shop they can weld a rolled kit together for you in about two hours or less, not to much money.

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    Just use supa glue, much easier

  • @andy1way

    @andy1way

    11 ай бұрын

    ​@@billsmith281Would Ducktape do?

  • @arnauguillaumes8287
    @arnauguillaumes82873 жыл бұрын

    How much fuel consume per second?

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    Lots & lots more

  • @devonheath6477

    @devonheath6477

    2 жыл бұрын

    What kind of fuel is also relevant...I'm pretty sure they use some kind of mix of gas and propane..

  • @Jkauppa
    @Jkauppa Жыл бұрын

    Ramjet instead

  • @pjbdm1517
    @pjbdm15176 жыл бұрын

    First

  • @user-gq9bg8zk1z
    @user-gq9bg8zk1z4 жыл бұрын

    あなたのらいははいますか

  • @leenaibrahim1428
    @leenaibrahim14284 жыл бұрын

    I think colin is better at this job

  • @billsmith281

    @billsmith281

    2 жыл бұрын

    I think your right

  • @JW-ol4cp
    @JW-ol4cpАй бұрын

    lame... no use for this gimmick

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