just add water is a simple 16oz water rocket that can carry water for ballast. During the apogee and descent stages of flight, the water ballast is released to slow the rate of descent. The change to the COG causes the rocket to fall sideways, slowing it even more.
[youtube][/youtube]
Launch freeze frame:
Bugwubber
just add water
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just add water
Bugwubber
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Re: just add water
Getting the ballast out of the rocket in free fall where you cannot count on gravity is a challenge! Nice to see it working for you!
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Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison
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Re: just add water
Thanks! Looking at the slow motion replays, a lot of the water appears to be expelled by centrifugal force as the bottle spins to a nose down attitude. Then, with the mass gone, there's nothing to keep the nose pointed at the ground.U.S. Water Rockets1 wrote:Getting the ballast out of the rocket in free fall where you cannot count on gravity is a challenge! Nice to see it working for you!
There are limits..too much ballast water resulted in some water remaining in the rocket.
Bugwubber
Bugwubber
Team S.P.E.W.
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Re: just add water
Interesting concept and a very cool launcher too.
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