How to make a simple ripstop nylon parachute DIY

This is a simple and fast way to make a ripstop nylon parachute.
It's a good parachute for smaller, lighter rockets. If you need a stronger parachute design then have a look at our other nylon parachute video found here:
• New Improved Homemade ...
Chapters:
0:00 Intro
1:19 Materials
1:59 Cutting the fabric
6:10 Cutting the shroud lines
10:15 Sewing the shroud lines
11:48 Finishing up
12:48 The parachute in action

[@paulobru2828]

Obrigado!

[@theonlytruedragin]

Look, I know that I’m getting ready to sound stupid here, but why aren’t you using 9”, which makes each straight edge at 9” evenly?😮

[@rotaryrocketry]

Difficult to explain in words without an illustration. I see where you might think you would just divide each edge of the fabric into three sections of 9" each. But the line that you follow to cut off the corners is the hypotenuse of a triangle. The hypotenuse of a right triangle with two 9" sides is 12.7". So you would end up with a parachute with 4 sides at 9" and 4 sizes at 12.7". Trust me, the math I gave is the easiest way to get the proper 8 sided shape.

[@theonlytruedragin]

Thank you very much for your reply.
I never would’ve thought of the hypotenuse and having four longer edges.
The way that you have answered me makes perfect sense to me and really helps me to understand why you did what you did.
Thanks again for your reply.