Comments on: Episode 32: Jet Pack

By: Buzz Lightyear

Buzz Lightyear — Sun, 30 May 2010 23:55:34 +0000

Controlled Indoors Flight of the Martin Jetpack
http://www.youtube.com/watch?v=2TBndcBjQFM

By: Topher174

Topher174 — Wed, 24 Mar 2010 16:00:32 +0000

FAIL…

Check out the blokes in New Zealand that are producing them. What I don’t understand guys, is that they debuted the same thing that you tried to build at Oshkosh at the same time. Only, theirs worked…

By: tom

tom — Thu, 14 Jan 2010 03:23:16 +0000

The propeller fan jetpack should work in theory but it would cost more money than an average person could afford. An engine that is light enough and powerful enough must be found and even then it should be turbocharged or something to increase the power with little extra weight. A small jet turbine for micro model jets could be used to drive the fans. they are light and powerful, the excess thrust from the engine could be forced downward to get a few extra pounds of thrust.

As for changing the gearing of the engine and fan it would not work. A small engine doesn’t have the torque to drive the fans – Imagine trying to accelerate in a manual transmission car from a stop in 5th gear or two drive a school bus with a weedwhacker motor. Simply not enough power for the load being put on the engine. It just isn’t possible.

The cowling could be redesigned to generate more lift perhaps.

A commercial company could invest and create a personally jetpack and market it for 50k or something. A full scale comany would have the resources to optimize a design like this.

By: Martin

Martin — Sat, 02 Jan 2010 10:47:38 +0000

I tend to agree with bennie dodd but I have some other stuff to say about this “myth”.
If you’re going to test “pyramid power”, you really should follow the “pyramid power” rules. It’s great that you made a scale model of the great pyramid, but that’s just the start. You then have to align one side of your pyramid to magnetic north using a directioanl compass. You also cannot have your pyramid in the same room as electronic equipment. They don’t get on very well, and your pyramid won’t work. When you’ve done all this, you should then leave the pyramid alone for at least 3 to 4 weeks. It’s a comsic battery and like any battery, it needs time to charge. You also should not bump or knock the pyramid at any time as it’s a very sensitive device. I’m not sure about the metal structures. I don’t recall all the details, but I was dissapointed with the pyramid power episode. I felt you guys didn’t give it a fair shot. You got a couple of half good results and said “busted”. I also think that sometimes you guys keep doing “myths” until you get the results you’re looking for and then say “myth busted”. If you think I’m crazy, please let me know, I’d be interested to hear from you guys.

Cheers, Martin

By: bennie dodd

bennie dodd — Sun, 25 Oct 2009 03:53:40 +0000

someone did not research enough!!! all pyramid power testing must be done away from all metal structures. they did theirs in a metal building! oops! do not use a metal frame. use wood. place objects 2/3 up from the base. re-visit this one! try honey in a small plastic container(parts cabinet drawer works well)longer tha it is wide. put a control outside pyramid. leave several days. gets thick. control stays normal. they didn’t look before they leaped!! need more info, contact me.

By: Delmer

Delmer — Sat, 24 Oct 2009 12:25:19 +0000

Sorry Didn’t finish my comment. I do have more ideas. But never get the chance to work on any of them. I also have an idea to go green and long distant on this type of flying. Please, I would like a reply. Thank you for your time. Again, I love you show. your fan: Delmer Delmer

By: Delmer

Delmer — Sat, 24 Oct 2009 12:00:52 +0000

I love your show. I hope you still have Your “jet pack” I do believe that it can fly. 1) You must first use a propeller, like the one on a WW2 mustang P-51. Not that thick fan. 2) The Pitch of the propeller was too shallow. It should have a deeper pitch. Should add 5 to 10 degree angal or same as the mustang prop. at least. 3) Should add a ring or a band. Like the Mercedis Benz emblem. at about 1/8″thick or less. in the ducks. cut out a slot where the ring would fit in flush and the propeller could flow freely and not loosing air pressure. Allthese changes should make if fly. If it does would like to see it up close and personal.

By: KCP

KCP — Sat, 18 Apr 2009 05:19:47 +0000

Thanks for doing pyrimid power ’cause I needed a science far project ASAP and it worked out perfect I got first place!!!!!!!!!

By: Gabriel

Gabriel — Fri, 27 Feb 2009 20:32:35 +0000

yes could be have a right function may be using a more powerful motor, light weight, may be same to a motorcicle motor and a right guide system i found this http://www.youtube.com/watch?v=vyb6vnX1My0 is a proyect same. but is same a “pinguin helicopter” and baxter low weight (joke) i like to much this chapter

By: Jamie's#1fan

Jamie's#1fan — Wed, 14 Jan 2009 15:51:21 +0000

i’m trying to do a science project on what you guys did. you are pretty awesome and i was wondering if you guys had any tips for me…