rocket

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Hi everyone. I build a rocket in Open Rocket. I have a problem when run simulation. I uptaded .org file and a picture that shown error message. What is the solution of the error? Thanks

Hi. How much thrust would be required for a rocket reaching an altitude of 100km and also what set of formulas should I be using?

I am currently working on a 1:3 Scale of our Space Shot Rocket, which will hopefully come out later this month or the first week in November. This rocket has a 75mm Body Tube and a 54mm MMT, and is 88” tall. The rocket will include a SCP Thrust Plate machined from billet aluminum and a 4.5”...

Hi, I am wanting to transmit GPS coordinates and altitude from an Arduino onboard a model rocket that will go 1km high, to another Arduino on the ground. The purpose is just to assist in finding the rocket once it lands. I was needing something cheap but also not too large (about 3-4cm). I was...

Hello everybody I belong to a group of students currently undergoing our studies in Mechanical Engineering, Civil Engineering and Electrical Engineering at the University of Costa Rica. We have been involved with Aerospace activities as active members of the Aerospace Engineering Group (GIA)...

Hello Everyone, It is well known to everyone that India is one of the leading space faring nations of the World. After a hiatus of a decade, and inspired by Alfonso Moreno from axm paper models, I decided to restart my hobby. I have so far completed the SLV-3 and ASLV rockets, the 1st and 2nd...

Just another fun question to ask the community. It seems we all have our go to tape of choice when building rockets. Here are a few I see used on rockets, what are yours? Mine is Blue painters tape Masking tape BLUE painterd tape Gorilla Tape Duck Tape Electrical tape Gaff tape What else...

Hey everyone! I decided to challenge myself and build my second 2 stage high powered rocket. It consists of mailing tubes and 3d printed parts. I ran a whole bunch of Simulations with OpenRocket and cross checked to make sure the parameters there match the actual built rocket. Yukon's first...

Hi, I visited the site of Nakka Rocketry and tried to use an excel document to figure out the best shaped nozzle for my rocket, but it didn't work for some reason. Here are my rocket motor specs, maybe you can help me out with how to get the best nozzle design? - Motor case: 3/4 inch PVC...

Hi, I'm working on a project, to make a self landing hobby rocket, but with a solid rocket motor. I would like it to be a slow burnin one preferably with a stable thrust througout the burn time of it. I want to be able to make it at home (obviously I would order ingreedients), so that I can...

Hi all, I am looking to design and build a hybrid rocket engine and I would like to know where I could find a spreadsheet to design a hybrid rocket engine. Or if any of you could share it with me. Thank you so much !

Hello! I am building an Arduino Altimeter with BMP280. Fortunately for BMP280, it has an in Built IIR Filter. But the problem is am not sure how to change the settings for rocket specific application. The Parameters are: Oversampling Setting IIR Filter (Ratio) set standby time...

Hey folks! l am a student freshman level at university. l am planning to build HPR and have a problem. l want to use Dacron polyester material for my parachute. l am not sure whether Cd is correct on openrocket software or not. As Nasa resources, ıt would be 1.75. But as openrocket software ...

RECIPES GALORE thread for sugar, KNO3, sulfur, etc... rocket engine recipes!!!! This thread is for a discussion about all kinds of recipes for rocket engines!!

Hello! I’m currently doing a project for my Science class. Basically, we have to design a rocket from water bottles and try to make it have the most airtime. This includes from the time it launches to when it falls on the ground, parachute deployed and all. I’ve done a lot of research but...

Hi, Today I would like to share with you my first ever rocket: Cormoran MK1 Specs: Length: 370mm Body diameter: 32mm Propulsion: C6-3 Mass with motors:124g Expected apogee: 150m (~495ft) Build material: PLA About it: I have been interested in rocketry for a long time. For one reason or...

This is my first build thread, so go easy on me ;) I've flown a few minimum diameter rockets in the past, and I typically prefer to build them with four fins. However, one issue I've ran into with four-finned rockets is with regards to launch equipment. Every time I fly one, I have to use...

I am an fourth undergraduate aerospace engineering student. I need to find the rocket center of pressure by using CFD programs for my thesis. Now I have some experiences fluent and OpenFoam. How can I make this analysis?