Has any one made a rocket from a 2 litter pop bottle?

Has any one made a rocket from a 2 litter pop bottle?

Post by Jack » Wed, 31 Jul 1996 04:00:00



Quote:

>Date:       30 Jul 1996 07:01:04 GMT

>Newsgroups: rec.models.rockets
>Subject:    Has any one made a rocket from a 2 litter pop bottle?

>We just need to find a way to set up a parachute on them so we won't hurt
>somebodys car or worse if it lands in a bad spot. If you have any ideas
>on how to get the parachute to work with a H2O rocket please  let me know.
>Thanks.
>--
>Ray Carlson

        Would an adept altimeter be overkill?  ;)

Jack Wiker

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by The Silent Observe » Wed, 31 Jul 1996 04:00:00


Quote:


> >Date:  30 Jul 1996 07:01:04 GMT

> >Newsgroups:    rec.models.rockets
> >Subject:       Has any one made a rocket from a 2 litter pop bottle?

> >We just need to find a way to set up a parachute on them so we won't hurt
> >somebodys car or worse if it lands in a bad spot. If you have any ideas
> >on how to get the parachute to work with a H2O rocket please  let me know.
> >Thanks.
> >--
> >Ray Carlson
>         Would an adept altimeter be overkill?  ;)

> Jack Wiker

Underkill, more likely -- doesn't the Adept require a 300 foot altitude
gain before it'll trigger?  I don't think these water rockets go that
high...

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Has any one made a rocket from a 2 litter pop bottle?

Post by Ray L. Carls » Wed, 31 Jul 1996 04:00:00


Me and my ten year old son have been having a blast launcing the pop bottles
They are cheap and can be uesed many times over and over again. We have more
fun with these than the model rockets that we can buy at the local hobby shop.

We just need to find a way to set up a parachute on them so we won't hurt
somebodys car or worse if it lands in a bad spot. If you have any ideas
on how to get the parachute to work with a H2O rocket please  let me know.
Thanks.
--
Ray Carlson
420 1st St NW
Minot, ND 58701                         701-839-4465

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Dwight Ha » Fri, 02 Aug 1996 04:00:00



Quote:
L. Carlson) writes:
>...If you have any ideas on how to get the parachute to work with a
> H2O rocket please let me know.

A friend mentioned a simple trick he used (way back when) to "hang" a
glider on a rocket, which may work in this case -- have a pin/nail set
in the side of the rocket at an upward angle (or glue a small plastic
post to the bottle?). The parachute would hang on this hook -- possibly
by punching a hole thru the tip of the (flattened) parachute?  On the
way up, wind resistance/gravity keeps it on the hook, but (hopefully)
as it begins to fall, it will lift off the hook & "deploy".  Tie the
shroud lines around the bottle neck, I'd guess.


 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Vince Huege » Fri, 02 Aug 1996 04:00:00




Quote:

>L. Carlson) writes:
>>...If you have any ideas on how to get the parachute to work with a
>> H2O rocket please let me know.

>A friend mentioned a simple trick he used (way back when) to "hang" a
>glider on a rocket, which may work in this case -- have a pin/nail set
>in the side of the rocket at an upward angle (or glue a small plastic
>post to the bottle?).   On the way up, wind resistance/gravity keeps it on

the hook, but (hopefully) as it begins to fall, it will lift off the hook &
"deploy".  Tie the shroud lines around the bottle neck, I'd guess.

A former HARA member, Dan Coon, put together 12 three liter bottles into a six
foot tall rocket that pressurized to 90psi and went up 200'. His "Tsuanmi"
rocket used a radio control to release a parachute, but his earlier
experiments used more of a ballast- drag technique like described above. He
simply had a short tube on the front of the bottle that loosely housed the
parachute. When the rocket tipped over at apogee, the chute sort of fell out
and deployed.

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Luke Molone » Fri, 02 Aug 1996 04:00:00


Quote:

> A former HARA member, Dan Coon, put together 12 three liter bottles into a six
> foot tall rocket that pressurized to 90psi and went up 200'. His "Tsuanmi"
> rocket used a radio control to release a parachute, but his earlier
> experiments used more of a ballast- drag technique like described above. He
> simply had a short tube on the front of the bottle that loosely housed the
> parachute. When the rocket tipped over at apogee, the chute sort of fell out
> and deployed.

12 bottles?!!!  How were they connected together?  I assume because the rocket
was six feet long that the bottles were stacked up, but were they in paralell or
was it 6-staged?   Sounds like an ambitious water rocket!
--
Luke Moloney

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Bite » Sun, 04 Aug 1996 04:00:00



Quote:

>Me and my ten year old son have been having a blast launcing the pop bottles
>They are cheap and can be uesed many times over and over again. We have more
>fun with these than the model rockets that we can buy at the local hobby shop.

A plastic bottle shouldn't need a parachute, right?  It's so light it
would hurt anything.

I've seen people fly ceramic owls (ala SNOAR), frisbees (again SNOAR),
huge *** ***s (SNOAR I think, sounds like something they would
have done in those days anyway...), model cars.

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Wolfram v.Kipars » Mon, 05 Aug 1996 04:00:00


Quote:

> I've seen people fly ceramic owls (ala SNOAR), frisbees (again SNOAR),
> huge *** ***s (SNOAR I think, sounds like something they would
> have done in those days anyway...), model cars.

I remember the rocket boats.  Whoosh - blub, blub...

The bricks were cool too...

Wolf

 
 
 

Has any one made a rocket from a 2 litter pop bottle?

Post by Brian D » Tue, 06 Aug 1996 04:00:00


Quote:


>> A former HARA member, Dan Coon, put together 12 three liter bottles into a six
>> foot tall rocket that pressurized to 90psi and went up 200'. His "Tsuanmi"
>> rocket used a radio control to release a parachute, but his earlier
>> experiments used more of a ballast- drag technique like described above. He
>> simply had a short tube on the front of the bottle that loosely housed the
>> parachute. When the rocket tipped over at apogee, the chute sort of fell out
>> and deployed.
>12 bottles?!!!  How were they connected together?  I assume because the rocket
>was six feet long that the bottles were stacked up, but were they in paralell or
>was it 6-staged?   Sounds like an ambitious water rocket!

The Tsunami had a fairly elaborate manifold arrangement of PVC pipe
and custom-machined adapters to***on to the pop bottles.  The bottles
were arranged as three tiers of four bottles each, as I recall.  As Vince
mentioned, it was later outfitted not only with RC for recovery deployment,
but rate gyros for active attitude correction!

Vince, I'm sure you've got some pictures of the Tsunami that we can
add to the HARA web page?
--


Huntspatch, AL