DIY model rocket parachute. Simple, cheap, easy.

[@gavanwhatever8196]

I went to the local sailmaker and got some offcuts of sailcloth used for spinnakers. For free! Really strong, really light, and bright orange. Plus I was able to have a shower when I got home.

[@klausziegler60]

You have true precision machines in your hand!

[@klausziegler60]

I like to see how skillfully you do all manual activities

[@philipherbst5117]

Another great video. The 4 layer duct tape reinforcement is really elegant. Thanks!

[@markosterman624]

thank you i was just doing a project and i saw this thanks philip

[@lukemullins8647]

This was an amazing explanation! Thank you!

[@analogalien]

Awesome!!! I'll never buy another parachute for my model rockets again! Thank you!

[@Zombie_Longwinger]

If you wax the polypropylene and make it tacky instead of shiny your knots will bind

[@RidiculousRocketry]

Excellent process and exactly what I was looking for.

[@rotaryrocketry]

Glad to hear it! We have done several launches with a 6 foot version of this plastic parachute and it has worked very well. The only two failures we had was because I wrapped the lines too much around the parachute so it failed to deploy properly. But that was entirely my fault. By the way... We are working on a new parachute design that uses rip-stop nylon fabric. That video should be coming out pretty soon. It is lighter & stronger but a bit more difficult to build as it requires a lot of sewing work.

[@garagemancave666]

fyi, dollar store umbrellas are made typically of ripstop nylon and make great cheap chutes. You don't even have to cut the chute into shape.

[@rotaryrocketry]

That sounds like a really good idea. I'm gonna check that out. Thanks.

[@umangyadav6220]

Thanks brother for making this video on my want.really thanks ❤️❤️

[@umangyadav6220]

Brother ❤️ you said that if you use this parachute in a rocket then plzz make that video fast plzz

[@rotaryrocketry]

This is for my next 4" rocket. I will post the launch video but it will probably be a few weeks before we have it ready.

[@umangyadav6220]

@@rotaryrocketry okk brother I will wait

[@toothlesszilla9982]

Aw its so cute

[@hachi_9324]

Great vid mate

[@jetstarrclab4075]

Very nice handwork

[@terrywheelock9458]

You got a grrrrrreat start, you should go to Richard Nakka's channel or Dan Pollino's webpage, these guys have all the info you need to learn how to build anything you want! ...... And, safely! 👍

[@SuzukiKQ700owner]

Did he just say his 4 inch rocket weighs 4.25 pounds? Is it made of solid metal or what?

[@rotaryrocketry]

Yup... Fully loaded and ready to launch. Most of that was the motor. We had designed and build an all metal motor casing & nozzle that was aluminum and steel. A bit heavy but extremely reliable. We have crashed it ballistic into the ground several times with no damage. We built that case over 2 years ago and we still fly it every so often.

[@SuzukiKQ700owner]

Wow that’s impressive! I hope you are able to enjoy it as much as possible!

[@ayushkaiwart2451]

very good tutorial. Thank you sir

[@LERS_ZENIT]

Спасибо, будем делать парашют:)

[@toothlesszilla9982]

Looks like a jellyfish 🪼

[@rotaryrocketry]

I'll take that as a compliment... Jellyfish descend slowly and so do our parachutes.

[@toothlesszilla9982]

@@rotaryrocketry yepy it's cute

[@toothlesszilla9982]

@@rotaryrocketry 🥰😍😄😃😀🙂😊

[@toothlesszilla9982]

​@@rotaryrocketry hugs it 😊

[@hifinsword]

Great video. I am a DIYer whenever I can, but I'm new to rocketry. This video is more likely geared towards advanced rocketeers. You didn't say how the lines are arranged to each corner. The 1st set should be adjacent. The next set of corners should have the line come across the parachute, not adjacent. And that should leave the last set of 2 corners adjacent. This arrangement should make all the lines so that they will not be crossed. If all lines connected to adjacent corners, one line would cross the others. But advanced rocketeers would already know that I assume.

[@Ray0000.1]

Did he just throw that ruler?

[@A_To_Z_medicine_And_Disease]

Good work

[@pllndch]

A bit late, but do you have any dea on how to fold this and make it fit inside the model rocket?

[@rotaryrocketry]

It's never too late for a good question. We're working on a video today for parachute folding. Will post a link here when it's ready... Should be later today

[@pllndch]

@@rotaryrocketry Thanks!

[@rotaryrocketry]

Here is our video on folding this style of parachute. kzbin.info/www/bejne/oZisfmd-qrGcg8U

[@quannguyenle2330]

Hi sir, so what do we need to do to make it deploy about 5 seconds after reach apogee. I don't know how to set up a computer on board the rocket, do you have any mechanical solutions ?

[@rotaryrocketry]

There are two typical ways to deploy the parachute. 1. Flight computer. This is the technique we use. Most times, I use the EggTimer Apogee flight computer. It detects apogee and fires an ejection charge. Here is our video about how to make the EggTimer Apogee: kzbin.info/www/bejne/nHndp4qGi6p4epo It does require some technical soldering skills and once assembled, you still need to design a way to include it inside your rocket. Here is our video that describes how we make our ejection charge: kzbin.info/www/bejne/hGi1nZh3j7l3fqc 2. The second typical way to eject the nose cone & parachute is to have a delay and ejection charge built on the top of the motor. I really don't like this method for two reasons... It requires more work to build the motors... And you have to guess at the timing for the ejection. You are likely to never actually eject at apogee. Conclusion... If you are serious about amateur rocketry, you will either need to learn about using flight computers or you may need to look into purchasing pre-made or re-loadable motors that have a built-in ejection charge.

[@quannguyenle2330]

@@rotaryrocketry Can you guide me how to learn using flight computer. I'm so confused and don't know where to begin

[@rotaryrocketry]

Well, start by watching my video about how to make the EggTimer Apogee. Make sure you are comfortable with the skills needed to build it. If you are not in the USA, you may want to check with the guys at EggTimerRocketry.com to see what the shipping cost will be. International shipping can be expensive. If you want to ask me specific details, you can email me directly... Go to our KZbin home page www.youtube.com/@rotaryrocketry and click ABOUT. Our email address can be found there.

[@quannguyenle2330]

@@rotaryrocketry Thank you so much, sir !

[@quannguyenle2330]

@@rotaryrocketry It will be a long journey, because I'm just 16 and lving in Vietnam, where model rocket is not so popular.

[@tradingguy5863]

Amazing

[@minirocketyt3580]

Awesome!

[@thalesnemo2841]

What is the origin of 4.83 ?

[@rotaryrocketry]

If I was a mathematician, I could probably answer that. It's just a number that always make the calculation come out properly for making the parachute cuts perfect every time, no matter what size parachute you are building.

[@thalesnemo2841]

@@rotaryrocketry Or just multiply the diameter by 0.416 to get the length of one side of the octagon . Then divide that by 2 to get the displacements from the quarter folds . The area of an octagon =4.83 times the side length . Or 0.818 times the area of the square . Cheers

[@2008WolswagenPassat]

Ok, but how do i figure out how big does the parashute need to be?

[@rotaryrocketry]

I don't really have a good answer for that. For my 4" rockets that are around 3 to 4 feet tall, I am using a 6 foot parachute and it works well. A smaller parachute would work fine and make it come down faster... A larger parachute would work fine and make it come down slower. When I was doing 2" rockets, the parachutes were around 2 to 2 1/2 feet. It's pretty much experimentation.

[@2008WolswagenPassat]

@@rotaryrocketry ok, thanks mate

[@terrywheelock9458]

You said DOODIE! 🤣

[@rotaryrocketry]

LOL... Didn't notice that until now... Actually, they were "Light weight", "Medium weight" and "Heavy weight". But I forgot to look at the photo before recording the audio.

[@CAx2_48]

insane