Drogue Shock Cord Length

[eldugul000]

I am designing a 1 mile 1 pound rocket with my school rocket class but I am unsure of how long to make our shock cords. Should the drogue cord be 3x the length of the overall rocket length or just the drogue section of the rocket, or some other length?

 

[bobbyg23]

How big is the rocket?

 

[kalsow]

One mile-long rockets generally have three mile-long shock cords.

 

[Titan II]

https://www.rocketryforum.com/search/466170/?q=shock+cord+length&o=relevance
https://www.google.com/search?q=sho...MC4xMC4ymAEAoAEByAEGwAEB&sclient=gws-wiz-serp

 

[eldugul000]

How big is the rocket?

87 in

 

[Banzai88]

87 in

A 7+ foot tall rocket weighing one pound that you want to get 1 mile up in the sky?

I would love to see your OR or RS file for that one!

In any case, the general rule is 3-5x the full overall length main and drogue. That's also dependent on what material you choose and how much room you have.