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Mark
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Re: youtube

Post by Mark » Mon Jan 14, 2019 6:00 pm

Someone made a pulsejet out of a reed, like one of the ones I have but never got around to using, pictured next to my red Dyna-jet head here.

download/file.php?id=14630&mode=view

Valved pulsejet
https://youtube.com/watch?v=B2DEpeDj2t8
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Mark
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Re: youtube

Post by Mark » Sun Jan 20, 2019 3:25 pm

Some creative designs in putt putt boats, although kind of a sad back story.
https://youtube.com/watch?v=1yYVHfbxK9g
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Mark
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Re: youtube

Post by Mark » Thu Feb 07, 2019 6:19 pm

Skip to around the 2:30 mark and listen when the engine cuts out, the quiet whistling sound as the plane cuts through the air and stunning landing.
https://youtube.com/watch?v=eqM__cZmM48
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Mark
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Re: youtube

Post by Mark » Sat Mar 16, 2019 3:57 pm

Maybe of interest, be nice to have for some projects.
Drill through anything (conductive) with Electrical Discharge Machining
https://youtube.com/watch?v=rpHYBz7ToII
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Mark
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Re: youtube

Post by Mark » Sat Mar 30, 2019 1:35 am

World's First? Lennox Pulse Jet made from a furnace
https://youtube.com/watch?v=fAQ7sMl_41g
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Mark
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Re: youtube

Post by Mark » Sun May 12, 2019 5:10 pm

Simple Bottle Rocket Launcher (Propane)
https://www.youtube.com/watch?v=iiH1l3zTSaQ
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Mark
Posts: 10813
Joined: Sat Oct 11, 2003 10:14 pm

Re: youtube

Post by Mark » Sat Feb 29, 2020 1:56 am

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Mark
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Re: youtube

Post by Mark » Fri Oct 23, 2020 9:02 pm

Here's an interesting construction. The plans look similar to the Russian book copy Don Laird sent me years ago. I suggested he try methanol. He wrote me back "The thickness of the valves did not fit, I ordered another material."
https://youtu.be/YuMnuJGBYUg
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metiz
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Re: youtube

Post by metiz » Sat Oct 24, 2020 9:35 pm

That's some impressive machining
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Mark
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Re: youtube

Post by Mark » Sun Oct 25, 2020 4:21 pm

What I thought was interesting is how light and how long the pulsejet was, it looked like 33.73 grams, but I couldn't tell which measurement was the thickness of the shim stock he used to roll and weld it to make tubing? I wonder how thin you could make a small jet like that?
It seemed about 70 cm long or something if I am correct, way longer proportionately than a Dyna-jet, Tigerjer, or that miniature Sibley craft jet that's an inch in diameter. I saw the plans are vaguely similar to what's in the Russian pulsejet book, which is more abbreviated than his colorful plans.
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Re: youtube

Post by Mark » Sun Nov 08, 2020 2:27 am

The round shape approach reminded me of the drawing in Reynt's book of sphere with twin exhaust tubes 180 degrees apart. Also Leo's design. https://youtube.com/watch?v=1QD7U0ogXWM

"For those with a longer attention span" ha
Pulse Jet Pumpkin
https://youtube.com/watch?v=MV46oheGC94

It was painful to watch his choice of exhaust tube proportions but a creative choice for the combustion chamber, the stem of which looks like a good carrying handle and with work something unique could come about. It brought to mind perhaps a coconut mated with bamboo or a bird house gourd for other garden variety pulsejet artistic opportunities. I'd like to try kelp for fun.
https://pursuitist.com/eco-vuvuzelas-fo ... up-finale/


"With a sound like the trumpeting of a bad-tempered elephant, vuvuzelas are excellent noise-makers, so they eventually found there way into football stadiums and mainstream South African culture. These are things of beauty, and eco-friendly, too. Probably the most notable kelp vuvuzela is that blown by the whale crier in Hermanus, a public servant walks around the town blowing his vuvuzela to inform locals and tourists alike where the whales are to be found."
"It all started when Carnegie was tasked to find a project for his son’s class to make some kind of craft for sale at their school fundraising fete. He hit upon kelp vuvuzelas, which offered more than just a craft project as the whole class could get together to collect kelp on the beaches, and then do the painting. It was as much a social project as a creative one."
https://www.brandsouthafrica.com/people ... uvus200109
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