The Rocketry Forum

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  1. G

    RocketPy v1.0.0a1: Liquid and Hybrid Motors are here!

    We are excited to announce the arrival of RocketPy v1.0.0a1, the alpha version of our v1.0.0 which is coming soon! RocketPy has been soaring high, and this release marks a major milestone in its development. We have listened to your feedback and worked tirelessly to bring you an exhilarating...
  2. samtc

    Weekend Hybrid Flight

    Flew my first Hybrid in some time at the SC Rocketry Launch this weekend. The rocket was a 54mm G10 with Acme Fin Can. The max altitude on the I-260 was 3,085 feet. Many thanks to Johnny Hoffman for his GSE, Robert Carson for continuing to support and sell the Hypertek System, and Chuck...
  3. J

    Hybrid oxidiser system HELP?!?

    Hi everyone, First post on here so don't bite my head off if I say something completely stupid. The background to this thread is that I need some help with designing the oxidiser system in a hybrid rocket that myself and some other student friends of mine are making. I have dabbled in solid...
  4. T

    HyperTek anyone?

    So is anyone out there still flying HyperTek motors? While going through my rocket room the other day I came across a case of motors and it got me wondering if anyone was still flying them. I probably have two cases of the 54mm motors and probably around 10 of the 98mm reloads. Tim Sapp
  5. B

    Hybrid rocket propulsion intro

    Hi, I am interested in starting hybrid rocketry.I am planning to scratch build a moter but I can't find any guidance. Thank you for your time
  6. D

    Control oxygen flow hybrid rocket engine

    Hi all, I built a small hybrid rocket engine and I would like to control the arrival of oxygen in the engine with an arduino card. What do you advise me: a solenoid valve? A valve with a servo motor? If possible, could you specify a model? It's been a while that I'm looking for without finding...
  7. J

    Sold Collection, Motor Casings 29/38/54

    *this post is a "work in progress" so i will be editing it with new info for probably the first week its up* This is my late fathers collection. We both enjoy this hobby many years ago and I do not have plans of continuing with it. With that being said, I'm here to sell this collection as a...
  8. D

    Hybrid rocket engine design spreadsheet

    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 !
  9. kieran.vro

    High School Hybrid Rocketry

    I've been experimenting with rocket engines since the sixth grade. As time passes, the designs for which I aim become more and more complex. I've reached the point where I actually have no idea what to do. I'm trying to make a mid-power, single-stage hybrid rocket with enough thrust to get some...
  10. MachDiamond

    Found Tribrid Engine

    I've been wanting to get more into hybrid rocket engines. If anyone has a tribird engine for sale please reach out to me. I especially would like a RATTworks K350, but I would consider any production tribrid or clone. If you aren't familiar with these engines, you can learn more here...