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Model Rockets

05/01/2009 9:51 AM

i have started a new project recently and am trying to build a rocket that i designed......a 4 stage Kalmarad rocket......i was wondering if anybody had any plans for the engine and body design...because i have used virtually every plan on the internet.....any help would be greatly appreciated

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#1

Re: New Rocket Build

05/01/2009 11:12 AM

"am trying to build a rocket that i designed"

followed by:

"i have used virtually every plan on the internet"

Sooo... which is it? Did you design it or not?

"i was wondering if anybody had any plans for the engine and body design"

I'm not a Rocket Scientist but isn't a rocket basically just a engine and body in the first place?

Sorry for being no help at all, I hope someone better versed in such things can help.

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#3
In reply to #1

Re: New Rocket Build

05/01/2009 12:47 PM

Couldn't have said it any better myself. The count down for this project will be in scientific notation.

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#4
In reply to #1

Re: New Rocket Build

05/01/2009 1:07 PM

yeah its ok....i had a little dumb spell there for a minute....but what i meant to say is that i am designing a new rocket....and currently working on one that i just finished designing.......and i should have said that i am looking for engine plans and body plans

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#2

Re: New Rocket Build

05/01/2009 11:51 AM

With an avatar like that.......

I don't think you will get too many people willing to help you.

Nice!

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#5
In reply to #2

Re: New Rocket Build

05/01/2009 1:16 PM

now will you help me????

i changed avatar....i need help to design this model rocket

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#6

Re: New Rocket Build

05/01/2009 1:19 PM

no this isnt kim jong.....i am a small town country person wanting to help the united states fight against the war on terrorism.....when i graduate high school....i am going to the Navy Seals school in San Diego.....i train for it every day.....waiting....waiting...and waiting to be all that i can be

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#12
In reply to #6

Re: New Rocket Build

05/02/2009 12:56 PM

I became aware of Loompanics as a result of reading Harlots Ghost by Norman Mailer. They publish books about how to do things you are not supposed to know how to do.

I believe they publish a book about how to turn Estes sorts of rockets and standard solid fuel engines into semi deadly missiles, though I didn't buy that book.

-This may explain some of the regulations after 9/11 applied to model rocketry.

I think the D engine is about as big as you are going to get ready made, and it is possible to make the propellent on the stove in a frying pan. A friend of mine told me about doing that, but I forget the details.

For awhile there in Manhattan, and during the First Gulf War, I built a good number of rockets, and got at one time to the point where I could build one out of toilet paper tubes and papertowel tubs and some balsa wood in about 30 minutes.

One time I simply squashed some Aluminum foil into a nosecone shape and stuck it in the nose, instead of whittling and sanding a block of balsa for a nosecone.

I used my rockets to send Peace Messages, either written on them, or contained in the the place where some put mice, on a particularly nice rocket Estes made a kit for.

I have suggested that the Palistinians and the Israelis send such rockets back and forth instead of the rockets that they tend to exchange.

I of course want my rockets to always fall by parachute.

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#15
In reply to #12

Re: New Rocket Build

05/04/2009 4:53 PM

re: "and it is possible to make the propellent on the stove in a frying pan...."

Yup, been there done that ... we used to refill our (Estes) rocket motors with a syrup of plain ol' sugar with potassium perchlorate , using a filed-smooth nail inserted into the nozzle end. Different depths/shallowness of insertion gave different ... (i.e., less uncontrolled!) ... burn rates.

Fascinating summers ~ who's got a time machine...!?

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#7

Re: New Rocket Build

05/01/2009 2:56 PM

I don't know anything about building rockets, but I did read about it a few years ago. In addition to "how to build" you need to look into "how to keep legal in a post 911 world". If the motor is very big you probably need permits and paperwork to be legal. A year or two after 911 there were large but "normal" model rocket motors that you could not transport across a state line without a license. When I read about it the laws seemed to be a little over the top. If you want to go into the military then you don't want your record to show that you were investigated as a possible terrorist. You want to make sure you don't have more fun than you are legally allowed to have.

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#8
In reply to #7

Re: New Rocket Build

05/01/2009 5:51 PM

Good point Bruce, didn't even think about the "terrorist threat" possibility. Definitely a list to stay off of (especially with all the torture we apparently performing).

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#9

Re: Model Rockets

05/01/2009 11:48 PM

Keep up the ambition, CR4 does have a rocket club that I am sure would love to help with this.

I recommend that you first join or at least contact an amateur rocket club in your area.

Here is a couple of good starts

http://www.tripoli.org/

http://www.lunar.org/

http://www.nar.org/

THese guys should pretty much help, guide, or at least give advice.

P.S. These are some smart people

Good luck, and keep America safe

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#14
In reply to #9

Re: Model Rockets

05/03/2009 5:05 PM

Nice site list. Thanks

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#10

Re: Model Rockets

05/01/2009 11:58 PM

I was a rocket guy in my youth - there is a outfit in Colorado - I believe they are still in business - ESTES INDUSTRIES - check them out. Edmund

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#11

Re: Model Rockets

05/02/2009 2:27 AM

Built a lot of estes rockets in my youth too. Even built one with a three engine cluster and placed a radio tranmitter in it. (I was a ham so it was all legal) the plan was to measure the doppler shift of the transmitter and calculate the velocity of the rocket. Only problem was that the G force on lift off was so great that the oscillator crystal broke the pins off. (They don't work too good that way.) We never did get reliable ignition on that three engine cluster either... By the way, doinking with the rockets, ham radios etc lead to a career as an Electrical Engineer, so keep doinking

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#13

Re: Model Rockets

05/02/2009 8:30 PM

Have you contacted N Korea? I hear they are having limited success with their rockets.

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#16
In reply to #13

Re: Model Rockets

05/04/2009 9:45 PM

You can only help those willing to listen. Not kill you for telling them what they need not want to hear.

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#17

Re: Model Rockets

05/04/2009 10:54 PM

Local Tripoli Chairman suggested Saturn V Launch on Youtube.

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