lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

I Want To Build Something, Tips?

Sat Mar 19, 2005 6:07 am

In my mind, I think if I print out my drawings on computer, and give it to someone to machine out pieces, then I can out it together. I am just not familiar with those types of machine shops.

Nevertheless, I want to get on with project Lehpron. I created her in July of 2000 and her profile actually has not changed much but her engine has, it is an APED or advanced pulse engine detonation -- which I have had for 8 years.

Originally, Lehpron was conceived to do what NASA did with Hyper-X but takeoff on it's own due to the pulse engine system, which varied over the years. I am trying to prove with Lehpron is that an APED propulsion concept is more efficient, requires less maintenance, less parts and therefore costs less to deal with than the mainstay turbine jet engine at higher speeds and that combined cycle systems are expensive, complex and heavy. I now estimate the costs of traveling at 2 kilometers-per-second on a full-sized, APED-powered airliner at less than $25/kg of payload. To do so I broke her up into 3 phases:


  • I would build the engine and run it on a fixed test stand to see if it ran at all. It would have probably cost me $500 and 6 months.
  • A motion test, a rocketcar on a roller-coaster track made with pipes from Home Depot just to see if the engine could accelerate itself towards the speed of sound. This may have been $3000 and 2 years. Then distance/cost/time permitting, transition the engine to ramjet mode.
  • A flight test of Lehpron about 4 times the size of the rocketcar just flipped upside-down; IMO that will not happen unless I have investors and it may be 10 years away provided I start now.


You can see how behind I am, the rocket car should have already gone supersonic by now...I seem to be extremely procrastinative.  Sad Moreover, by the time I finish my graduate studies I should have had a flight vehicle ready, I figured my school could have sponsored it had the rocketcar or even the fixed tests have showed promising results.

N-E-way, I just want to get started on the first phase finally. I got 200 in my account left, any tips or ideas or anything is so greatly appreciated.

Thank you very much.
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
pilotpip
Posts: 2820
Joined: Fri Sep 19, 2003 3:26 pm

RE: I Want To Build Something, Tips?

Sat Mar 19, 2005 8:38 am

That sounds way beyond my comprehension. But ambitious! It's a shame that more people aren't out there breaking away from convention to advance our field. Burt Rutan is one of my idols because of this. Best of luck!

As for the budget deficit, might I suggest the world's oldest profession. That is assuming that you're not ugly!!  Big grin
DMI
 
2H4
Posts: 7960
Joined: Tue Oct 19, 2004 11:11 pm

RE: I Want To Build Something, Tips?

Sat Mar 19, 2005 12:15 pm




Hmmm....rocketcars, roller-coaster tracks, ramjets......this all sounds suspiciously familiar.......






















 Wink


2H4


Intentionally Left Blank
 
cancidas
Posts: 3985
Joined: Thu Jul 03, 2003 7:34 am

RE: I Want To Build Something, Tips?

Sat Mar 19, 2005 2:34 pm

lephron, are you still at riddle in KPRC?
"...cannot the kingdom of salvation take me home."
 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: I Want To Build Something, Tips?

Sat Mar 19, 2005 3:16 pm

Quoting Cancidas (Reply 3):
lephron, are you still at riddle in KPRC?

Yup.



I know what some of you may ask; I'm not book smart, I cannot show my proffessors my ideas as they will scapegoat, and judge my ideas as such. This school has been getting more refined since i got here, I am getting the impression of a cookie-cut engineering program. Since my ideas go completely against the school's direction, I am just trying to concentrate on graduating. In the mean time, I want to prove to these people that I want to be a leader and not a follower.

[Edited 2005-03-19 07:34:46]

[Edited 2005-03-19 07:38:27]
The meaning of life is curiosity; we were put on this planet to explore opportunities.
 
CRJ200Mechanic
Posts: 200
Joined: Fri Feb 18, 2005 5:37 pm

RE: I Want To Build Something, Tips?

Sun Mar 20, 2005 6:38 am

Quoting Lehpron (Thread starter):
In my mind, I think if I print out my drawings on computer, and give it to someone to machine out pieces, then I can out it together. I am just not familiar with those types of machine shops.

I used to do CADD/CAM in high school (Computer Aided Drafting and Design, Computer Aided Machining) Having a drawing and taking it to a machine shop to have it cut out isn't that easy. In my engineering CADD class, my instructor brought in a block of wood and some wheels for a down hill car race that his daughter was in and he asked me to design a car and mill it out for her. It took me three months, changing the design and making it better. Me and my instructor even built a wind tunnel to test it. Milling it out was another ball game. You have to tell the cutting blades where they are in reference to the piece you are cutting out. All of that has to be incorporated into the design. All coordinates and dimensions have to be included. Royal pain in the arse. I had to do most of this in my free time. His daughter did win first place and she gave half of her prize money to me. (20 dollars, LOL) My instructor gave me an A for the year and the next six months I was a teachers assitant.
Always remember the responsibilies you hold with an A&P license
 
lehpron
Posts: 6846
Joined: Tue Jul 10, 2001 3:42 am

RE: I Want To Build Something, Tips?

Tue Mar 22, 2005 7:04 am

I put this up in the non-aviation forum thinking it had nothing to do with aviation:

http://www.airliners.net/discussions/non_aviation/read.main/772587/

if any of you happen to know anything otherwise, please let me know.

In the meantime, CRJ200Mechanic mentioned CAM and I found this website for a machine shop near where I live:

http://www.apprecision.com/services/index.html

I will contact them this summer for maybe I tour or a talk, I donno how this is supposed to be done. I just want info.
The meaning of life is curiosity; we were put on this planet to explore opportunities.

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