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Questions tagged [amateur-rocketry]

Questions regarding home-made rockets.

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Why are hexa airfoils used on rockets despite having more drag that diamond airfoils?

I was doing a study on airfoils shape for a rocket. I tested the diamond and the hexagonal airfoil with Missile DatCom, RasAero and the Shock Expansion theory and from my results it seems like the ...
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0answers
32 views

Analyzing Amateur Rocket Stability and Range Safety

I am working with a university bunch of other university students on building a very large amateur rocket. Our objective with this rocket is just to go very high, with no significant payload or ...
2
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0answers
77 views

How to determine altitude when altimeters fail?

Specifically for high altitude amateur rocketry, how is altitude determined when you get too high(too low pressure) for barometric altimeters to work? I heard about GPS, however, COCOM limitations ...
1
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1answer
88 views

Can I able to use RP 1 and LOX in metal tin small size rockets? Is that possible? [closed]

I love rockets. Planning to build a tin rocket but not with water and air pressure. I would like to build a small metal tin rocket using fuel as RP 1 and oxidizer as LOX. I know this is too hazardous ...
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0answers
112 views

What is the best fuel for bottle rocket? [closed]

I want to modify my firework bottle rocket to fly a mile high. What will be the best fuel for this? Could fuel used in space rockets be scaled down to work in a large bottle rocket?
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0answers
75 views

Understanding Coefficient of Drag Verses Mach Number for Launch Vehicles

I've been working on a design for a sounding rocket that can go to the Karman line, that I want to make my senior capstone project next year. As a part of this process, I am making a program to ...
3
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1answer
338 views

What speed and altitude can I reach with a primitive sugar rocket?

I'm getting interested in amateur rocketry. I'm realistic about it and understand that my skills and technology currently available won't let me construct anything beyond very simple designs, with ...
8
votes
1answer
969 views

Can we use liquid propellants in amateur rockets?

Is it possible and worth it to use liquid propellants like liquid oxygen and liquid hydrogen in amateur rockets? What are the other types of liquid fuel used? Moderator's Note: Remember discussion ...
23
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5answers
8k views

What is the feasibility of a rocket hobbyist achieving a LEO orbit with a microsat?

Along with being a rocket hobbyist, I'm also an Amateur Radio Operator. I would like to determine the possibility of placing a "microsat" a miniature packet radio satellite, into a low earth orbit.
2
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0answers
96 views

Which solid fuel is optimal for light rocket?

I am in search of comparatively cheap and powerful enough solid fuel. I've found rocket candy, but is it enough to reach 1km altitude? (My aim is a 2 metre high rocket with 0.5kg of payload.)
1
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1answer
222 views

new nozzle design, is it a fail?

So I'm an amature rocket scientist. while having a conversation with a friend on a nozzles we though of a new nozzle: Its a double nozzle where it expands a lot and then compress. I want to put this ...
2
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1answer
613 views

Problems with the “How to Design, Build and Test Small Liquid-Fuel Rocket Engines” text

For those that have read or consulted the text: How to Design, Build and Test Small Liquid-Fuel Rocket Engines (Rocketlab/China Lake). Otherwise, see steps 10-13 here: https://risacher.org/rocket/...
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0answers
133 views

Challenges in Development of small scale liquid propellant engines [closed]

Being aeronautical engineering graduate, I have gone through huge literature regarding design of Liquid propellant engines(LPRs). But as I am planning to develop small LPR based on gasoline and oxygen....
31
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4answers
9k views

What would one need to do to get an amateur satellite into orbit?

I've recently become interested in amateur satellite packet radio, and I've seen that the bandwidth and thus the bitrate is extremely low on most amateur satellites, not even factoring in noise. So I ...
3
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2answers
466 views

How would E85 work as rocket fuel?

In the question Can I make my own RP1? the comments talk about using ethanol and water as rocket fuel. That made me wonder how well easily availible ethanol fuel for cars such as E85 (85% ethanol 15% ...
6
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1answer
4k views

Can I make my own RP1? [closed]

Is it possible for me to buy kerosene from a local store and then try to refine it to the extent where it would be considered RP1. If so how would I do it? For those who are wondering me and a group ...
1
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2answers
358 views

Is nitrous oxide hypergolic with anything reasonably safe and obtainable?

Can I start an amateur rocket using nitrous oxide as either oxidizer or monopropellant, using a hypergolic slug of something reasonable for use by an amateur rocketeer? What substance could it be?
5
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1answer
232 views

Record-setting flights in amateur rocketry

It appears that amateur groups have launched rockets to space (above the Karman line), but these were flights of commercial (Pegasus) rockets by amateur teams. What I am interested in is record-...
3
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0answers
92 views

Can a DIY rocket put an object into a stable orbit around earth? [duplicate]

Is it possible for a "home made" rocket to launch an object into a stable orbit assuming a person has calculated the right trajectory?
5
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2answers
383 views

Building a ultra-small almost space vehicle

I'm quite interested in small rockets-balloons that can reach more than 50km, thus I want to build one myself (With my school financial support). I just want it to carry like a 350g-450g equipment. ...
5
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3answers
3k views

Would a 'small' rocket like this reach space?

I want to build a solid fuelled rocket (I was thinking 3 stage with 2 boosters) that'd launch a micro-satellite (cubesat size) into space but first I want to try reach space (100km) with no payload. ...
2
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0answers
85 views

ULA/Ball Aerospace Intern Sport Rocket

So I've seen ULA post about their intern rocket launch a couple of weekends ago and was curious: What are the performance specs on the motors used for the first/second stage? (Class, quantity, etc.) ...
2
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3answers
6k views

How did the GoFast 2014 Rocket de-spin?

In this awesome Youtube video of HD footage from the GoFast 2014 Rocket, a de-spin maneuver is performed. Is this a yo-yo de-spin? You can see the de-spin at 0:57 and at 3:47, where it really looks ...
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1answer
1k views

Whipped cream hybrid rocket

I am currently working on a small hybrid rocket as a summer project. I've decided on using nitrous oxide as the oxidizer, but large tanks are expensive and I don't have a lot of money (I'm in high ...
2
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1answer
739 views

Can I launch a homemade rocket from the ground that can reach LEO? [duplicate]

If I had the time and the financial means to do so (and legal rights), could I design, build, launch, and deliver a small (very small) payload to low Earth Orbit? I think it would be awesome to put a ...
20
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5answers
36k views

Is it possible to reach space using home-made rocket?

The first stage would be a high altitude balloon, which could reach 30km. Then start a rocket-candy from that high. Without cargo, is it possible to reach the edge of space (Kármán line - 100km), or ...
14
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2answers
1k views

Amateur satellite launch

Has there ever been a successful satellite launch done by amateurs? I mean both building the satellite and a rocket to carry it.