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Rating: 3.8
Category: Science
Date: 02/25/11 11:54 AM

44 Responses to Bored Science: Home-Made Jet Engine

  1. Profile photo of Tiredofnicks
    Tiredofnicks Male 30-39
    5097 posts
    February 25, 2011 at 11:56 am
    Link: Bored Science: Home-Made Jet Engine - Sorta easy to make too I understand. Now class, how does this work?
  2. Profile photo of Tacos4Brkfst
    Tacos4Brkfst Male 18-29
    620 posts
    February 25, 2011 at 12:05 pm
    "Now class, how does this work?"

    Suck, Squeeze, Burn and Blow.
  3. Profile photo of seetherage
    seetherage Male 18-29
    85 posts
    February 25, 2011 at 12:05 pm
    Dude, seriously? Theres like 1,000 videos like this on youtube. iab needs to be more careful of who their uploaders are.
  4. Profile photo of LazyMe484
    LazyMe484 Male 18-29
    10441 posts
    February 25, 2011 at 12:12 pm
    I don`t get it... why are there flames coming out of the intake?

    Also, why does it look like it`s going to melt?

    Perhaps those two questions have the same answer.
  5. Profile photo of Wundt
    Wundt Male 40-49
    410 posts
    February 25, 2011 at 12:15 pm
    I remember they made one of these on Junkyard Wars. It didn`t do too well, and almost exploded.

    It works by air being sucked into the shorter pipe, where it ignites with the fuel. The exhaust from the explosion exits through both pipes, resulting in a vacuum. Because one pipe is so short, oxygen is pulled in through the short pipe to feed the next explosion, resulting in a pulsing stream of explosions. The exhaust in the long pipe is pushed along by the next explosion, and the next, resulting in thrust.
  6. Profile photo of Wundt
    Wundt Male 40-49
    410 posts
    February 25, 2011 at 12:18 pm
    There are flames in the intake because it is closer to the explosion, by the time it exits the longer pipe all of the oxygen is consumed, thus, no flame.

    It gets hot because it is hundreds of explosions per minute. That is a lot of heat. The long pipe especially because the heat goes into the pipe, not the air, as it does with the shorter pipe.
  7. Profile photo of Fatninja01
    Fatninja01 Male 30-39
    25420 posts
    February 25, 2011 at 12:42 pm
    Thats insane, i love the glowing red!
  8. Profile photo of Volsunga
    Volsunga Male 18-29
    1548 posts
    February 25, 2011 at 12:43 pm
    This is one of the worst homemade jet engines I`ve seen on the internet. No proper engine should lose that much energy to heating the housing, and no housing should get white-hot during normal operation.
  9. Profile photo of meepmaker
    meepmaker Male 30-39
    6694 posts
    February 25, 2011 at 12:44 pm
    Pulse jets are cool.
  10. Profile photo of meepmaker
    meepmaker Male 30-39
    6694 posts
    February 25, 2011 at 12:45 pm
    Suck,Bang,Blow.
  11. Profile photo of belunan
    belunan Male 30-39
    1507 posts
    February 25, 2011 at 1:14 pm
    No explosions or spectacular fireballs? I`m a little disappointed.
  12. Profile photo of Phosphoreign
    Phosphoreign Male 30-39
    308 posts
    February 25, 2011 at 1:18 pm
    @volsunga: Agreed... 30 - 50 lb`s of thrust is all this thing puts out, yet it blows fire from BOTH exhaust and intake while turning white hot???? What a peice of homemade crap... I couldn`t do it though :)
  13. Profile photo of FrameRaid
    FrameRaid Male 30-39
    102 posts
    February 25, 2011 at 1:24 pm
    If this was in Florida it would have been strapped to a shopping cart with a person inside ready to ride it.
  14. Profile photo of Gerry1of1
    Gerry1of1 Male 50-59
    36657 posts
    February 25, 2011 at 1:35 pm

    where is the rest of the video?
    the part where it blows up.
  15. Profile photo of TopperHey
    TopperHey Male 18-29
    1930 posts
    February 25, 2011 at 2:12 pm
    poo-the-bed that`s hot.
  16. Profile photo of EntrE
    EntrE Male 18-29
    535 posts
    February 25, 2011 at 2:26 pm
    this is not a jet engine!!! jet engines have rotor blades and all kinds of poo!
  17. Profile photo of thatwasCRAP
    thatwasCRAP Male 18-29
    58 posts
    February 25, 2011 at 2:42 pm
    @EntrE, different type of jet engine called a pulse jet engine, still a jet engine smart arse
  18. Profile photo of shalantas
    shalantas Male 18-29
    426 posts
    February 25, 2011 at 2:51 pm
    uhhh no explosion... sucky! that thing was hot as poo
  19. Profile photo of mts2457
    mts2457 Female 18-29
    535 posts
    February 25, 2011 at 2:52 pm
    Do not touch.

    lawl
  20. Profile photo of mcfudge
    mcfudge Male 18-29
    537 posts
    February 25, 2011 at 3:08 pm
    @EntrE; Yes, it is a jet engine. It is a valveless pulse jet. I buit one out of exhaust tubing for my senoir project in high school. One that size probably delivers around 15lbs of thrust.

    It is hot, but not as hot as it looks in the video. When metal heats up, it creates infrared light (as well as light in the spectrum we see), which is seen by the camera. In all reality, they barely glow, the most you can see in person is a little red around the forward part if the expansion chamber.
  21. Profile photo of jsatan
    jsatan Male 18-29
    256 posts
    February 25, 2011 at 3:17 pm
    mcfudge I agree with the IR, I`ve seen these before, a simple google will show them. :)
  22. Profile photo of darkgear6
    darkgear6 Male 70 & Over
    1378 posts
    February 25, 2011 at 3:19 pm
    where`s the carb on this thing?
  23. Profile photo of 5Cats
    5Cats Male 50-59
    32786 posts
    February 25, 2011 at 3:28 pm
    DO WANT!
    wantwantwantwantwant!
  24. Profile photo of D3rAnG3d
    D3rAnG3d Male 18-29
    1598 posts
    February 25, 2011 at 3:40 pm
    that looks just a little bit dangerous...
  25. Profile photo of Angelmassb
    Angelmassb Male 18-29
    15511 posts
    February 25, 2011 at 4:05 pm
    How to make the most noisy oven in the world
  26. Profile photo of whocares3725
    whocares3725 Male 18-29
    310 posts
    February 25, 2011 at 4:24 pm
    Its amazing that something like this was groundbreaking 90 something years ago, and now we can make it in a garage with some mechanical training (although I don`t know exactly how smart/trianed these guys are)
  27. Profile photo of joey7415963
    joey7415963 Male 18-29
    174 posts
    February 25, 2011 at 4:34 pm
    satans answer to the energy efficient lightbulb
  28. Profile photo of Angilion
    Angilion Male 40-49
    12387 posts
    February 25, 2011 at 4:54 pm
    Its amazing that something like this was groundbreaking 90 something years ago

    Less than that. The first working jet engines were built in the late 1930s. Engines, plural, because it was invented independently by two different people at about the same time (one in England, one in Germany).
  29. Profile photo of ajmullan
    ajmullan Male 18-29
    105 posts
    February 25, 2011 at 5:23 pm
    NASA called, they want their redneck back...
  30. Profile photo of rammo34
    rammo34 Male 18-29
    1083 posts
    February 25, 2011 at 5:24 pm
    [quote"> If this was in Florida it would have been strapped to a shopping cart with a person inside ready to ride it. [/quote">

    Better yet, here`s one powering a go kart.
  31. Profile photo of Ant0n
    Ant0n Male 18-29
    761 posts
    February 25, 2011 at 6:33 pm
    that cant be safe
  32. Profile photo of TKD_Master
    TKD_Master Male 18-29
    4794 posts
    February 25, 2011 at 6:38 pm
    God I was just waiting for welds and stress points to fail due to melting. Ka-Boom!
  33. Profile photo of bacon_pie
    bacon_pie Male 30-39
    3061 posts
    February 25, 2011 at 8:20 pm
    bet it would look a lot sweeter if the lights were turned off.
  34. Profile photo of NottaSpy
    NottaSpy Male 40-49
    881 posts
    February 25, 2011 at 11:14 pm
    I`m going to live in his camp when the zombie apocalypse happens.
  35. Profile photo of GRadde
    GRadde Male 18-29
    2556 posts
    February 26, 2011 at 12:27 am
    Oooooh, cool lamp...
  36. Profile photo of ruthless1990
    ruthless1990 Female 18-29
    3001 posts
    February 26, 2011 at 3:54 am
    i laughed at the `do not touch` speech bubble XD
  37. Profile photo of andynaylor
    andynaylor Male 18-29
    239 posts
    February 26, 2011 at 5:25 am
    Brilliant... until metal fatigue kicks in and the damn thing explodes. Does it still count as an air intake when flames are shooting out of it?
  38. Profile photo of Padiddle
    Padiddle Female 13-17
    192 posts
    February 26, 2011 at 8:47 am
    I bet it`s super loud...
  39. Profile photo of nick12684
    nick12684 Male 18-29
    85 posts
    February 26, 2011 at 12:33 pm
    i worked on jet engines, and that`s definitely not not one.
  40. Profile photo of Byfield
    Byfield Male 18-29
    464 posts
    February 26, 2011 at 12:45 pm
    It is technically a jet engine. You definetely havent worked on one if you dont know that.

    Also, I wanna put bacon on that
  41. Profile photo of SmilinSam
    SmilinSam Female 18-29
    3599 posts
    February 26, 2011 at 5:55 pm
    wow... glowy :-D
  42. Profile photo of SvampeBob
    SvampeBob Male 18-29
    3076 posts
    February 27, 2011 at 2:03 am
    HAHAH sweet!
  43. Profile photo of Fleaman1797
    Fleaman1797 Male 18-29
    718 posts
    February 27, 2011 at 10:51 pm
    WOW look how HOT it got!!!!
  44. Profile photo of furrything
    furrything Male 50-59
    1340 posts
    February 28, 2011 at 2:05 am
    As the guy said, it`s a pulse engine. Similar to the ones used on German V1`s. Extremely simple device. They actually used it on a small plane, instead of its propeller.

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