Anuk Rathnayake
Member
So I have a rocket weighing 2kg which will go 3000ft and I have a sheet of ripstop nylon about 100cm × 150cm so what should my diameter be or area that I should cut the nylon to achieve a reasonable decent rate?
If you have OpenRocket, RockSim, or any other simulation software you can try using different chute diameters to achieve a descent rate of about 5-6 m/s. This will only provide a very rough estimate depending on the particular profile (flat, hemispherical, elliptical, etc) you chose and the resulting coefficient of drag the chute achieves.So I have a rocket weighing 2kg which will go 3000ft and I have a sheet of ripstop nylon about 100cm × 150cm so what should my diameter be or area that I should cut the nylon to achieve a reasonable decent rate?
Thanks for the advice I will simulate different diameter parachutes in Openrocket. I pretty much need a parachute that will do the job.If you have OpenRocket, RockSim, or any other simulation software you can try using different chute diameters to achieve a descent rate of about 5-6 m/s. This will only provide a very rough estimate depending on the particular profile (flat, hemispherical, etc) you chose and the resulting coefficient of drag the chute achieves.
Alternatively, here are a couple of chute calculators:
https://fruitychutes.com/help_for_parachutes/parachute-descent-rate-calculator
https://descentratecalculator.onlinetesting.net/
I have a 3000ft radius of clearance, so large.Do you have a large or small launch area to recover your rockets?
A 42" dia chute will yield a 15.3 mph ground hitI have a 3000ft radius of clearance, so large.
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