openrocket

Hello everybody, I'm pretty new here, and looking for some advice on using OpenRocket to run a sim of a custom motor. I'm not certain how OpenRocket is supposed to do this, but I'd like to control the center of gravity for the motor, which will change for the first couple seconds of flight as...

I needed to sim some motors, and I couldn't find the 4" Magg file anywhere. This is down-scaled from the widely-available 5.5" Mini Magg. Most components from the DB. Some measurements are from my own rocket. The rest are just a guess. Posted here cause someone else might want this someday.

Hello, me and my team are preparing for a rocket competition. We were given 2 engine options for us to use in our rocket. First choice is M2150 and second choice is M2020. We have to draw rockets in for 2 options. No problem for M2150. But the dimensions of the M2020 are incorrectly given in...

Hi all, I am trying to find a way to automate OpenRocket to run many simulations sequentially, changing some variables between iterations. I.e. Start with a rocket setup, then run 500 simulations increasing the outside temperature 0.05 degC each iteration. Some ideas were interfacing with...

Hi all, I just got Open Rocket to simulate an F powered rocket that I'm building, and for some reason, I can't get the stability number past 0.6! I've tried everything. Any ideas on what to fix?

Hi friends. I have a problem. I need speed of 25 m/s for lounchrod but my design speed is 32 m/s. If I increase mass, altitude is falling. How can reduce the lounchrod speed? Thanks friends:(

I don't know is anyone will read this but I can only hope. Please note this is not directed at anyone in particular; it's a result of seeing the same pattern repeat over and over here and elsewhere. When asking for support with OpenRocket, or any other program for that matter, you need to...

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

When we do the simulation, it gives warning that the parachute is opened at high speed. However, the parachute opens at the apogee point where the velocity of the rocket is 0 m / s. When we examine the graph, we see that the velocity at the opening point of the parachute is -0.5 m / s. However...

I just posted this in another thread, thought I'd elaborate a bit here for posterity. DISCLAIMER: I have no idea if this is common knowledge. If so I apologize. The standard practice to get most accurate flight sim data from OR or Rocksim is to measure mass and CG of the completed rocket, and...

Hi everyone. I'm currently using Ubuntu 18.04 LTS on Huawei Matebook 13 QHD display and having "so tiny user interface" problem on Open Rocket 15.03. I've googled it and got nothing about how to fix it on Ubuntu. Do you have any suggestions? It's getting more annoying that I'm having the same...

Hello! This is a thread where I'll be posting my designs for rockets, some which may eventually get built. Please feel free to make any sort of comments on my designs, i would appreciate the input. Also, this thread is inspired by neil_w's half-baked design thread

Since the default Java implementation on Linux machines has moved on past Java 8, I've created an AppImage that should allow you to keep using the current release. I'd like to invite anyone who would like to Beta test it to give it a spin by downloading from...

hi. I'm facing an execution issue regarding open rocket software. I have the latest java software. However whenever I download open rocket-15.03 from their website. It downloads the file in WinRAR format in my download section. To try to fix this issue I tried using the notepad method (basically...

I know you can get that information in Rocksim, but can you get information on how far a rocket will drift in OpenRocket? If so, please let me know how to do it. Thanks!

Hi everyone, I'm leading a TARC team for the first time this year and I had a few questions. 1. We are using OpenRocket to model the rocket and everything looks fine but the flight time looks a little unrealistic. We are using two body tubes and the weight of the rocket is around 300g right...

I posted this as a comment but I figured it'd be more useful as it's own thread: Hey guys, I've found a way to solve the issue. Though I have very little android development experience, the error seemed like all you had to do was replace any thrustcurve2008 query with a thrustcurve2015 one. So...

I've seen this behavior in Openrocket for some time, and just verified it in the current 15. 03 version. I don't see the simulation or the plot taking into account the motor delay specified in Motors & Configuration. When selecting a motor in Motor Configs, you can manually change the delay...

Silly thought, but one I had in the shower earlier today. Is there any way to simulate parallel staging in a cluster? Specifically, I'm thinking of a situation where you'd have several very large motors strapped together in a cluster, and then only certain sets (in symmetrical pairs) would be...

I've had a problem for months that I was unable to figure out how to correct. Every Java application I ran resulted in the fonts for the menus rendering garbled, completely unreadable resulting in the applications be unusable for me, including OpenRocket. I tried everything I could think of. A...