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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

Class D Parachute Rules

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LamdinRockets
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Class D Parachute Rules

Post by LamdinRockets » Tue Apr 03, 2018 6:04 pm

In the class D rule set it states that 'Rocket must be completely scratch-built using materials which are not manufactured as model rocket parts' Does this encompass parachutes? As in do parachutes have to be constructed yourself? Or can they be purchased?

Thanks for the help.



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Re: Class D Parachute Rules

Post by WRA2 » Tue Apr 03, 2018 7:26 pm

You have to make it yourself.


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anachronist
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Re: Class D Parachute Rules

Post by anachronist » Fri Apr 06, 2018 12:52 am

And honestly, you can make a better parachute yourself than an Estes rocket parachute you'd buy from a hobby shop.

Try using woven thread instead of twisted thread. You can get some very thin fly-fishing lead line for this purpose. It's great stuff, and resists tangling.



LamdinRockets
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Re: Class D Parachute Rules

Post by LamdinRockets » Fri Apr 06, 2018 7:14 pm

Thanks for clearing that up



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