The Rocketry Forum

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  1. M

    Recovery Wadding

    I need help understanding how to pack recovery wadding. After my first couple launches, the parachute was always a little burnt, until there was a hole in it from all the heat. After doing some research, I figured out that recovery wadding is supposed to completely block the air, and an easy way...
  2. M

    Gore DXF generator file. (Automatic parachute designer)

    When designing parachutes on your own, the process can be quite challenging. That's why I've developed a manual along with a program that generates DXF files for the gores intended for laser cutting. Currently, it's tailored for hemispherical parachute designs featuring a small spill hole. I...
  3. J

    Proposed modification to Saturn V recovery system

    I seek advice on the viability of a modification to the recovery of an Estes 1/100th scale Saturn V. Rather than having the Saturn V upper stage and booster return separately, I want them connected by a common shock cord. They both retain their own parachutes. The upper stage would act like a...
  4. ljwilley

    Best rocket parachute folding method?

    I would like to hear some different rocketeers methods of folding chutes. I always use the Carlisle method, which Is pictured in the handbook of model rocketry, but I would like to see other's methods. Maybe some specific "best for" methods. (Best for opening quickly, slowly, best for...
  5. lemon

    packing size of a parachute in real life

    How can i determine packing size of a parachute in real life from open rocket? i got packing diameter - 3.8inch and packing length - 15.7inch in Open Rocket for the 12ft Pro Experimental Drogue Parachute by Rocketman. This will be used in a rocket whose apogee is around 3000 feet (1 km to be...
  6. SkyWhal3

    Streamer + Parachute - What order on the cord?

    Hello, I have a streamer I'm using as a drogue, with a LOC parachute (jolly Logic @ 800'). What order on the shock cord should I put them on? Booster -> Streamer -> Parachute -> Nosecone? Booster -> Parachute -> Streamer -> Nosecone? Thanks!
  7. ke8nai

    Found In search of a large parachute! (15+ft)

    Hi all, Looking for a large parachute something in the 15+ ft range for a large upscale project I’m working on for Red glare and LDRS this year! Looking for something used to help out on the budget! No preference on manufacturer or color scheme, let me know what you’ve got and I’ll see if we...
  8. Ctbch05

    Rear deployed chute

    How would I go about a rear deployed parachute? Not any particular build or rocket just in general. Would it involve redirecting the ejection charge blast with an mushroom or inverted funnel type shape?
  9. J

    Parachute Steering for Payload

    Hi, there I am using a parachute(parafoil) to steer the payload. I need the code for that, by steering I want to reduce the range. Can anyone help me in this.
  10. T

    Orientation of the ejection charge for apogee deployment

    Hello fellow rocketeers, hope you are doing great. I was thinking about fitting my Eggtimer Apogee in the nose cone but then I realized the ejection charge should be oriented downwards, right? Then it would fire and push the parachute and the rest of the body downwards, and depending on how...
  11. C

    New Method for Parachute Deployment? Deployment by Rocket Extraction

    I am a member of a newly founded rocketry team in my University. We are very excited to build our first rocket, however, we have no prior knowledge. Upon investigating different methods for Dual Deployment Systems, Theo W. Knacke in his book "Parachute Recovery System Design Manual" mentions a...
  12. Rocketteer

    Sold 36" parachute

  13. Buddy Michaelson

    New Rocketman Parachutes

    Hello everyone, I’m looking to sell these brand new parachutes, mostly because they were used for website photos or made special colors for someone and have an extra. These are in perfect condition, all prices will be with shipping included and 20% off!!! All of these are absolutely beautiful...
  14. SierraDrinker

    Question on parachute fabric

    I am sewing my own parachute using Scotty Bryce's template. I wasn't able to find 1.1 oz ripstop nylon which seems to be the go-to fabric. The only ripstop I was able to find locally (Calgary, Alberta) was much heavier. I think over 6 oz. Aside from adding weight to my rocket, do you foresee...
  15. dvdsnyd

    GPS Drift, Rocket Landing Predictor and visualizer Spreadsheet

    Out of a desire to understand a little more where my rockets could potentially land leading up to the launch, and the morning of launch. As well as predicting where anomalous flights may go(main at apogee failures anyone?) Especially after having treed a couple rockets in my close flying circle...
  16. H

    Change From Streamer to Parachute for the Goblin?

    Like many others, I found a great deal on the Estes Goblin at Hobby Lobby yesterday--$4.39. At the time of purchase, I did not know it uses the streamer recovery system. Never used streamers before. If I convert to a parachute instead, what size should I use? Anything about the shock cord or...
  17. 421899B3-7F35-4785-8C98-C1698A1465AF.png


    My new 70” parachute
  18. Yohan H

    R2Home - Guided Parachute Recovery System - For rocketry and weather balloon

    Hello there, I'm new here, my name is Yohan H, I'm french, and almost 17 years old. I'm working on few space related projects, including one that may interest you. I'm working on a guided parachute recovery system, which can be used as well with a weather balloon than on a model rocket. Here...
  19. M

    Jolly Logic Chute Placement

    I'm adding a JL chute release to a 4" Mad Cow DX3 and I'm wondering about where to attach the chute. My DX3 has an AVbay and forward section for future use, and I'll be using motor ejection. I've checked through the forums and came up with 2 main ideas. I want to start with using a drogue just...
  20. Y

    Recovery System Problem

    When using the engines given by our rocket open rocket, there is no problem in the parachute system. Since we are given a different engine in the competition we will enter, we upload its file. When we simulate it acts like a parachute is not added. What do we have to do? Please help me.