Jong Ho's Hydro Rocket

Pictures provided by NASA. Click here to view

Welcome to my hydro rocket site. In this site, I will be talking about my hydro rocket tests and other things.

Building my rocket
We started making the rocket a few days ago. All of us started off with a normal 300ml soda bottle. The requirements for the bottle rocket was that you needed a recovery system and an 1-3 bottles. I attached my 3 wings to the main body of 1 bottle. Then I cut out 1/2 of a bottle and hot-glued it to bottle #1. Picture enclosed:

The next thing I added to my rocket was my recovery system. I used part of a garbage bag to make a parachute. I attached the parachute to the bottle with some hot-glue and cellar tape. The wings were next. I used a cardboard like substance and cut out 3 identical wings. I connected it with some tape and I was finished with the wings. I didn't add too many wings because it would create a lot of drag. The drag will cause the rocket to go lower than usual. (that's a bad thing)

I could stuff my parachute into the slot in the half tube.
I put the cone on top and I was completely finished with my rocket.
To launch the rockets, I needed the following materials: Water, a air pump, my rocket.
My finished rocket weighed 39 grams total.

Launch #1
For my launch, my rocket went pretty high and my parachute deployed at the end. I figured I needed to have less drag and have the parachute deploy a lot more earlier. That was a problem because if I pull out my parachute it will create more drag. But if I stuff my parachute more in, it will not deploy at all. Finally, I decided to just flatten the parachute against the body of the bottle and put a tennis ball cone on top. that way, the cone will fall off easily and the parachute will deploy. I'm guessing that the rocket will go a tiny bit higher and the parachute will deploy a lot more sooner. Another thing I realized is that the more water there is, the more thrust there is. but since it is heavier, the gravity will drag it down. I put 3/4 of the water I originally put in just in case it was too heavy.

Apogee
Apogee is the point when the item that is being thrown up stops going up and starts going down. when the rocket hits apogee, the parachute will come out and glide back to the land safely (hopefully without killing anybody/anything)

Glossary:
Apogee: a point where a rocket stops going up and starts to go down
Deploy: When a object comes out of a hiding place.

Games:
Click HERE!!! for a awesome game.
Click HERE!!! for another awesome game.
Click HERE!!! for the 3rd awesome game.
Click HERE!!! for the 4th awesome game.

	Distance from Rocket	Angel of Altimeter	Rocket Height at Apogee	Time to Apogee	Time from Apogee to Ground
Jong Ho Launch #1	not available	not available	not available	not available	not available
Jong Ho Launch #2	not available	not available	not available	not available	not available
Ben Launch #1	not available	not available	not available	not available	not available
Ben Launch #2	not available	not available	not available	not available	not available