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How big should a water bottle rocket's parachute be? Answered

I'm using a 2-liter bottle. Some of the sites I see tell you to make it really big, 3 feet, while say that you should make it about 1 foot in diameter, so it doesn't float too far away.

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vsingh15

7 years ago

Here is a link to a site: http://www.water-rockets.com/article.pl?124,0
It tells you how to make a parachute of appropriate size for a bottle rocket.
(The parachute is made out of plastic bag)

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Kiteman

10 years ago

The best answer is "it depends". If you need a soft landing. go large. If you need it to land closer, go small. In my experience, though, if you are just using a bottle, with no payload, they don't usually need any sort of parachute to survive landing.

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MePersonKiteman

Answer 10 years ago

Alright then. I do need a parachute, as the requirements for what I am doing say so. I'll make a 0.5 meter parachute, which is about 20 inches.

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KentsOkayMePerson

Answer 10 years ago

Lightweight material is a MUST, but you really dont need a parachute, it will just add weight.

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kkasperKentsOkay

Answer 7 years ago

but it will also increase time in the air

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KentsOkaykkasper

Answer 7 years ago

It will decrease altitude, increase dropping it down

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MePersonKiteman

Answer 10 years ago

How far away does the rocket travel if you use a 3-foot parachute in 5 mph wind? I read on another website that it goes 700+ feet away, but they're assuming that it moves sideways at the same speed as the wind.

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KitemanMePerson

Answer 10 years ago

It depends how high it goes, because it will have more time to drift sideways as it falls. An empty plastic bottle, with a parachute, will easily travel at or near the speed of the wind.

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wintv123

9 years ago

what is the highest over 50 feet it might be useful more of just cool to watch than practical