Download the FREE software HERE
I've played around with the trial version of RockSim before. I fly Odd-rocs, it usually seemed like too much work to input all the non-standard parts.
I hate learning new software, but this time Open Rocket went easier for me.
A few RockSim files were loaded into Open Rocket from the catalog pages on the Semroc website. You can load available RockSim files into the Open Rocket software, it'll just save them in the .ork format.
Here's how I finally got everything to work, hope this helps you:
After your rocket design has been drawn, be sure to specify your motor mount tube.
You can't enter an engine unless you tell the program where it goes!
In the upper left parts window, click to highlight on the "Inner Tube", then click "Edit"
Click the second tab that says "Motor"
Click the box that says "This component is a motor mount"
To enter your selected motor:
Click on "Flight Simulations"
Then on "New Simulations" and "Motor Configuration".
In the pull down menu click on "Edit Configurations".
Click on "New Configurations"
You have to Click on the left side that says "No Motors" then click the right side that says "None"
That opens up the "Select Motor" button below, click on that.
Now pick your engine and then the delay on the upper right.
Now you can run the simulation.
It sounds like a lot, but after you've done a few simulations it goes pretty quick.
Here's the Excelsior Honest Goon on the simulations page.
Click to enlarge.
In this newest version, printing is still has some glitches.
It's certainly not as nice as RockSim by any stretch.
No parts lists, animations or fancy graphics.
But it's FREE - you'll be able to design, know stability and find an altitude for your engine choices.
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