Will a jet engine work?

smugglervt · Sep 19, 2016

rAiN_Twist said:
I did the math, if I were to use G80 motors. To make it halfway to space, I would need 150 motors. There would be 8 stages, and it would be 20" in diameter, 6 foot tall, and 20 motors in each stage. Not only that, but it would have to be made out of a Pringles can. Mostly because they can only lift 32 oz. If each motor weighs 4.2 oz then you would need 20 motors on each stage to even lift all the rocket.

rAiN Twist - YouTube

Good luck finding a 20" diameter Pringles can.

Zeus-cat · Sep 19, 2016

smugglervt said:
Good luck finding a 20" diameter Pringles can.

Isn't that the medium sized can at Sprawl-Mart?

rAiN_Twist · Sep 19, 2016

Zeus-cat said:
Isn't that the medium sized can at Sprawl-Mart?

It was a joke! [emoji23]

rAiN Twist - YouTube

Forever_Metal · Sep 19, 2016

op:

tomsteve · Sep 19, 2016

rAiN_Twist said:
Yeah, I just saw that when I looked up S 50150. That was definitely not as small as a model rocket. No, I'm asking, what motor would it take to shoot something about 3-5" in diameter, and about 3-5 foot tall into space.

there isnt a motor that could do it and meet those criteria

DavidMcCann · Sep 19, 2016

In the interest of learning.... this is the best bet in the size you're looking at.... and no one that I've heard of has been able to replicate this performance-

https://www.astronautix.com/a/arcas.html

rstaff3 · Sep 19, 2016

tomsteve said:
there isnt a motor that could do it and meet those criteria

Yeah, being inquisitive is great and all, but asking that question shows that if the OP is really that interested, he should also do some basic research on his own. Which of course is just my opinion.

But, what if you made a rocket out of flubber and filled it with helium....(sorry, couldn't resist)

blackbrandt · Sep 19, 2016

I will smack the first person to make a blackbrandt 2.0 reference.

rharshberger · Sep 19, 2016

blackbrandt said:
I will smack the first person to make a blackbrandt 2.0 reference.

BB v2.0 will most likely be your eventual offspring, that in and of itself is scary enough. 😀

Cabernut · Sep 19, 2016

The only "amateur" rocket to ever reach space, that I know of, is the CSXT GoFast. I believe that's the smallest you can make something that can handle the power required to reach that altitude. It ran on an S-motor.

I'm sure most people here have seen this already, but it's an example of the only realistic way to reach space.
[youtube]001IXnp0ogc[/youtube]

DavidMcCann · Sep 19, 2016

blackbrandt said:
I will smack the first person to make a blackbrandt 2.0 reference.

isn;t space higher than 25 feet?

rAiN_Twist · Sep 19, 2016

rstaff3 said:
Yeah, being inquisitive is great and all, but asking that question shows that if the OP is really that interested, he should also do some basic research on his own. Which of course is just my opinion.

But, what if you made a rocket out of flubber and filled it with helium....(sorry, couldn't resist)

Was just trying to see what the community knows, and what they could come up with. I'd rather hear from the community, and learn more than just looking up the answer.

rAiN Twist - YouTube

Flyfalcons · Sep 19, 2016

The answer has been provided. Do with it what you wish.

rAiN_Twist · Sep 19, 2016

Flyfalcons said:
The answer has been provided. Do with it what you wish.

Correct, but the tread continues and I like where it's going.

rAiN Twist - YouTube

Zeus-cat · Sep 19, 2016

rAiN_Twist said:
Was just trying to see what the community knows, and what they could come up with. I'd rather hear from the community, and learn more than just looking up the answer.

rAiN Twist - YouTube

As only one team has actually accomplished this goal there isn't much to learn unless you hear from them. This is way beyond what most of us can or want to do. Most people who are answering you seriously are just guessing.

Zeus-cat · Sep 19, 2016

rAiN_Twist said:
Correct, but the tread continues and I like where it's going.

rAiN Twist - YouTube

Where is this thread going? Seriously, I thought it stopped being relevant a long time ago.

rAiN_Twist · Sep 19, 2016

Zeus-cat said:
As only one team has actually accomplished this goal there isn't much to learn unless you hear from them. This is way beyond what most of us can or want to do. Most people who are answering you seriously are just guessing.

I learned more than I came in with though. I had no idea that there was different levels of rocket engines. I also didn't know about all of the rockets that they linked, and all of the great information that these people found.

rAiN Twist - YouTube

rAiN_Twist · Sep 19, 2016

Zeus-cat said:
Where is this thread going? Seriously, I thought it stopped being relevant a long time ago.

And btw, it's not relevant to the title anymore. But there is still questions being asked, and answers being given.

rAiN Twist - YouTube

grouch · Sep 19, 2016

I dig math in factors of G80's.

dhbarr · Sep 19, 2016

grouch said:
I dig math in factors of G80's.

Ahh, but what burn time?

boatgeek · Sep 19, 2016

Cabernut said:
The only "amateur" rocket to ever reach space, that I know of, is the CSXT GoFast. I believe that's the smallest you can make something that can handle the power required to reach that altitude. It ran on an S-motor.

I'm sure most people here have seen this already, but it's an example of the only realistic way to reach space.
[youtube]001IXnp0ogc[/youtube]

Here's another way for the OP to look at it. Jim Jarvis (active on this forum, you can find his build threads with a little effort) goes to about 100-200K feet with absolutely beautiful 2 or 3-stage minimum diameter rockets, all custom built out of carbon fiber. He launches on commercial motors, so you maybe could get another few percent out by using a high performance research motor design. Running from memory, his rockets are 4" to 3" O to N and maybe 15'-20' long. Go to his build threads to see the exact numbers for what he's done. That's pretty close to what it's possible for an amateur to do on commercial O or less propulsion. It's an order of magnitude closer to space than I'll ever get, but still only halfway there.

rAiN_Twist · Sep 19, 2016

boatgeek said:
Here's another way for the OP to look at it. Jim Jarvis (active on this forum, you can find his build threads with a little effort) goes to about 100-200K feet with absolutely beautiful 2 or 3-stage minimum diameter rockets, all custom built out of carbon fiber. He launches on commercial motors, so you maybe could get another few percent out by using a high performance research motor design. Running from memory, his rockets are 4" to 3" O to N and maybe 15'-20' long. Go to his build threads to see the exact numbers for what he's done. That's pretty close to what it's possible for an amateur to do on commercial O or less propulsion. It's an order of magnitude closer to space than I'll ever get, but still only halfway there.

More than halfway actually. That's awesome.

rAiN Twist - YouTube

tab28682 · Sep 19, 2016

blackbrandt said:
I will smack the first person to make a blackbrandt 2.0 reference.

Looks like you need to smack yourself.....

les · Sep 19, 2016

rAiN_Twist said:
I don't want an answer "start small and build up".

rAiN Twist - YouTube

rAiN_Twist said:
C6-5 Estes rocket motors

rAiN Twist - YouTube

rAiN_Twist said:
I did the math, if I were to use G80 motors.

rAiN Twist - YouTube

Guess what - after the multiple posts in the multiple threads, you have "started small and built up"

First it was C6-5
In your other thread the E9 was referenced
Then the G80 back in this thread

A few more iterations and you'll get to the S motor..... :wink:

Salvage-1 · Sep 19, 2016

Amateur -

Lots of answers have been provided. Main problem against your suggestion is $$$

Commercial / Professional-

Jet engine (combined cycle engine) to space. Yours mounted to a spacecraft for the estimated research/development cost of only $8 billion

https://en.wikipedia.org/wiki/Skylon_(spacecraft)

https://en.wikipedia.org/wiki/SABRE_(rocket_engine)

cbrarick · Sep 19, 2016

I wonder how many micromax motors it would take to get to the moon??

Cabernut · Sep 19, 2016

cbrarick said:
I wonder how many micromax motors it would take to get to the moon??

To achieve orbit, land, or merely impact somewhere? To equal a Saturn V's all three stages? About 287 Billion.

Dave A · Sep 19, 2016

You all are either being punked or tested by an ATF agent, LOL

ThirstyBarbarian · Sep 19, 2016

If you want to go to space on a jet engine, try this thing

[video=youtube;wObBrd9wB6M]https://www.youtube.com/watch?v=wObBrd9wB6M[/video]

rAiN_Twist · Sep 19, 2016

Salvage-1 said:
Amateur -

Jet engine (combined cycle engine) to space. Yours mounted to a spacecraft for the estimated research/development cost of only $8 billion

https://en.wikipedia.org/wiki/Skylon_(spacecraft)

https://en.wikipedia.org/wiki/SABRE_(rocket_engine)

Unless you build the jet engine

rAiN Twist - YouTube

Will a jet engine work?

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