Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 43 users online :: 3 registered, 0 hidden and 40 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

water rocket

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
Sponsored 
  • Author
    Message

water rocket

Unread postAuthor: jeff » Thu Nov 16, 2006 6:29 pm

i got to build a water rocket for school by Monday and i was wondering if anyone had any ideas.



(Its got to have a 2-liter for a base)
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Unread postAuthor: jrrdw » Thu Nov 16, 2006 6:34 pm

Use a 2 liter pepsi bottle, poke a little hole in the lid, wala, your done.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: jeff » Thu Nov 16, 2006 7:21 pm

but the thing is it has to hit about 400ft away from the launcher
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Unread postAuthor: jrrdw » Thu Nov 16, 2006 8:20 pm

What kind of air pump are you useing? You do know you have to fill it half way with water and then put plenty of air pressure in then cut it loose. Experment with one, do a simulation, see what happens.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: noname » Thu Nov 16, 2006 8:22 pm

400 feet. You're an optimist. The furthest I've ever seen one go is like 150 feet.
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: jeff » Thu Nov 16, 2006 8:23 pm

the psi is gunna be at 80 and we get to choose everything else so ya, i was just wondering if u had some good mesurements so i wont be left in the dark.
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Unread postAuthor: jeff » Thu Nov 16, 2006 8:26 pm

ive seen em go like 300ft.


but ya i was egzaderating a little on the distance
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: ProfessorAmadeus » Thu Nov 16, 2006 8:30 pm

Just cut out pieces of card board for the fins and use poster board wrapped up like a ice creame cone for the nose cone. Tape some medium sized rocks to the insided of the nose cone for weight and tape every thing on. Mine went way high but i was use 110psi of air.
  • 0

Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
User avatar
ProfessorAmadeus
Brigadier General
Brigadier General
 
Posts: 1046
Joined: Fri Apr 28, 2006 5:39 pm
Location: texas
Reputation: 0

Unread postAuthor: jrrdw » Thu Nov 16, 2006 8:34 pm

Have a good and pointed nose cone, and some stablizeing fins, you mite get lucky. Some people build them out of PVC pipe. Go to www.skyhighrockets.com look around in that forum, i think there is a thread there on water rockets.
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: jeff » Thu Nov 16, 2006 8:35 pm

ok i will check it out thx
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Unread postAuthor: noname » Thu Nov 16, 2006 9:30 pm

Even 300 feet is hard to believe. That's a whole football field, it's really easy to miscalculate distance unless you actually measure it.
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Unread postAuthor: jeff » Thu Nov 16, 2006 9:32 pm

we DID mesure it
  • 0


jeff
Private
Private
 
Posts: 6
Joined: Sun Jan 29, 2006 3:32 pm
Reputation: 0

Unread postAuthor: cannon freak » Thu Nov 16, 2006 9:40 pm

For a water rocket one of the main factors is drag, so if you make a pretty areodynamic rocket it should do well.
300 feet isn't that high for a water rocket, for a 2 liter pop bottle it is but if you link a few together you can then get some distance.



Cannon Freak,
  • 0


cannon freak
1st Lieutenant
1st Lieutenant
 
Posts: 272
Joined: Fri May 12, 2006 8:37 pm
Location: New Brunswick, Canada
Reputation: 0

Unread postAuthor: ammosmoke » Thu Nov 16, 2006 10:01 pm

Ok, just check out this link, and thats all you need!

http://jamesyawn.com/h2o/index.html
  • 0

User avatar
ammosmoke
Brigadier General
Brigadier General
 
Posts: 1011
Joined: Wed Sep 27, 2006 10:57 am
Reputation: 0

Unread postAuthor: noname » Thu Nov 16, 2006 11:33 pm

I can believe you got 300 feet, I just doubted it until you said you measured.
  • 0

User avatar
noname
Lieutenant General
Lieutenant General
 
Posts: 2699
Joined: Mon Apr 10, 2006 9:19 pm
Location: Bay Area, CA
Country: United States (us)
Reputation: 9

Next

Return to Non-Spudgun Related Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'