"funnels" on the back of rockets

"funnels" on the back of rockets

Post by Fred Shecte » Tue, 21 Jul 1998 04:00:00



The funnell like things help catch the "TROLL LIKE THINGS".  Trains had
something similar to catch "cow like things".

-Shread Vector NRA #1 Paramount Leader

Quote:

> How come on real rockets they always have funnel like things on the back
> of the thruster thingo?

 
 
 

"funnels" on the back of rockets

Post by Stephen DeArma » Tue, 21 Jul 1998 04:00:00


snip

  Not a bad explanation Pete but you didn't tell him anything about the
Thingama Bobkaplow, not to mention how much Ekta Whosit or Ekta Whatsit
to use in the liquid propellant, but that's ok. Anyomne can have a bad
once in a while.  :)

                          Trust No One,
                              Randy

 
 
 

"funnels" on the back of rockets

Post by Jesse Robeto » Tue, 21 Jul 1998 04:00:00


Finally an answer I can understand! :)
Quote:


> >How come on real rockets they always have funnel like things on the back
> >of the thruster thingo?

> Because the hot flamey stuff that comes out of the thruster thingo is
> accelleratized to the fastness of that noisy stuff you hear by passing through
> an other-way funnel-like thingy before it reaches the funnel-like things you
> see, and by going through the funnel-like things it embiggens, which
> acceleratizes it to several times faster than that noisy stuff you hear.   The
> faster the flamey stuff leaves the thruster thingo, the faster the rocket
> travels when it runs out of the gunk it burns.

> Peter "a doohickey is a thingamabob that does the job" Alway

 
 
 

"funnels" on the back of rockets

Post by Stephen DeArma » Tue, 21 Jul 1998 04:00:00


snip

Quote:
> Obviously, the Thingama Bobkaplow holds the funnels on.

 That's right! I take it, you've seen one.

             Trust No One,
                 Randy

 
 
 

"funnels" on the back of rockets

Post by Scott McCrat » Wed, 22 Jul 1998 04:00:00



says...

Quote:

>><HTML><PRE>Subject: Re: "funnels" on the back of rockets

>>Date: Mon, Jul 20, 1998 09:21 EDT


>>>How come on real rockets they always have funnel like things on the back
>>>of the thruster thingo?

>>Because the hot flamey stuff that comes out of the thruster thingo is
>>accelleratized to the fastness of that noisy stuff you hear by passing
>>through
>>an other-way funnel-like thingy before it reaches the funnel-like things you
>>see, and by going through the funnel-like things it embiggens, which
>>acceleratizes it to several times faster than that noisy stuff you hear.
>>The
>>faster the flamey stuff leaves the thruster thingo, the faster the rocket
>>travels when it runs out of the gunk it burns.

>>Peter "a doohickey is a thingamabob that does the job" Alway
>></PRE></HTML>

>Bad Peter.  Bad, bad Peter.  (Smack) <G>

>CB

Bad my a**, that was beautiful! Thanks Peter, I'll have to hide the embarrassing
wet spot on the front of my Dockers all day ;0)

Sorry again Bob,

Scott McCrate
NAR 71680


 
 
 

"funnels" on the back of rockets

Post by Scott McCrat » Wed, 22 Jul 1998 04:00:00



says...

Quote:

>><HTML><PRE>Subject: Re: "funnels" on the back of rockets

>>Date: Mon, Jul 20, 1998 09:21 EDT


>>>How come on real rockets they always have funnel like things on the back
>>>of the thruster thingo?

>>Because the hot flamey stuff that comes out of the thruster thingo is
>>accelleratized to the fastness of that noisy stuff you hear by passing
>>through
>>an other-way funnel-like thingy before it reaches the funnel-like things you
>>see, and by going through the funnel-like things it embiggens, which
>>acceleratizes it to several times faster than that noisy stuff you hear.
>>The
>>faster the flamey stuff leaves the thruster thingo, the faster the rocket
>>travels when it runs out of the gunk it burns.

>>Peter "a doohickey is a thingamabob that does the job" Alway
>></PRE></HTML>

>Bad Peter.  Bad, bad Peter.  (Smack) <G>

>CB

Bad my a**, that was beautiful! Thanks Peter, I'll have to hide the embarrassing
wet spot on the front of my Dockers all day ;0)
 
 
 

"funnels" on the back of rockets

Post by James L. Bal » Wed, 22 Jul 1998 04:00:00


Quote:


> > Actually, if you find a collector's copy of Rocket Manual for Amateurs,
> > by Capt. Brinley, you're likely to see one or more illustrations of
> > loading a zinc/sulfur rocket (at the launch site) through the nozzle,
> > using it very much like a funnel...  B)

> > Fortunately, we don't have to do that any more in order to fly
> > rockets...

> The very first copy of HPR magazine I ever bought was the June 1994 issue.  On
> page 31 is a photo of a zinc/sulfur rocket being held upside down with a big
> funnel stuck in the nozzle  and somebody pouring "rocket fuel" in with a measuring
> cup. :-)

> PLEASE: NEWCOMERS, DON'T TRY THIS AT HOME.  Zinc/Sulfur is an extremely sensitive
> and dangerous combination!

I knew it would happen. :-(

Somebody (very young, I suspect) has e-mailed me and asked what's so bad about
Zinc/Sulfur as a rocket fuel.  This individual had made several Zinc/Sulfur  fueled
rockets and thought Zinc/Sulfur was a very safe & stable fuel!

I suggest anybody contemplating using Zinc/Sulfur (also known as micrograin) first
read the guest editorial in the Nov 1995 HPR magazine.  The writer suffered 2nd & 3rd
degree burns over 40% of his body from micrograin.

jimball

 
 
 

"funnels" on the back of rockets

Post by Rich Shepher » Wed, 22 Jul 1998 04:00:00


Quote:

> I knew it would happen. :-(

> Somebody (very young, I suspect) has e-mailed me and asked what's so bad about
> Zinc/Sulfur as a rocket fuel.  This individual had made several Zinc/Sulfur  fueled
> rockets and thought Zinc/Sulfur was a very safe & stable fuel!

> I suggest anybody contemplating using Zinc/Sulfur (also known as micrograin) first
> read the guest editorial in the Nov 1995 HPR magazine.  The writer suffered 2nd & 3rd
> degree burns over 40% of his body from micrograin.

> jimball

  I talked with Brandy last night. AKA "Ball Park Brandy" He plumps when you cook him!
I know it's cruel but we can laugh about it now since he lived. If you think micro grain
is
safe you have NO CLUE!!! You should see Brandy it's god awful. He was in a morphine
induced coma for over a month. He said you can't even describe the pain. 3 years later he
still
has not fully recovered and never will. You need to ask yourself is it worth it? I would
hope the
answer would be NOPE!!! DON'T BE A DOPE!

Rich....

 
 
 

"funnels" on the back of rockets

Post by James L. Bal » Wed, 22 Jul 1998 04:00:00


Quote:


> > I knew it would happen. :-(

> > Somebody (very young, I suspect) has e-mailed me and asked what's so bad about
> > Zinc/Sulfur as a rocket fuel.  This individual had made several Zinc/Sulfur  fueled
> > rockets and thought Zinc/Sulfur was a very safe & stable fuel!

> > I suggest anybody contemplating using Zinc/Sulfur (also known as micrograin) first
> > read the guest editorial in the Nov 1995 HPR magazine.  The writer suffered 2nd & 3rd
> > degree burns over 40% of his body from micrograin.

> > jimball

>   I talked with Brandy last night. AKA "Ball Park Brandy" He plumps when you cook him!
> I know it's cruel but we can laugh about it now since he lived. If you think micro grain
> is
> safe you have NO CLUE!!! You should see Brandy it's god awful. He was in a morphine
> induced coma for over a month. He said you can't even describe the pain. 3 years later he
> still
> has not fully recovered and never will. You need to ask yourself is it worth it? I would
> hope the
> answer would be NOPE!!! DON'T BE A DOPE!

> Rich....

You said it, Rich--clueless.
  I'm  glad to hear that Brandy is recovering.  There was never any follow up note in HPR.

I am constantly amazed by the remarks  from individuals I see here and in other forums who
get so upset and defensive when somebody remarks that motor making is dangerous and not for
the uninformed to attempt.

These same individuals then proceed to explain how safe and harmeless motor making is and how
it's all a plot by the motor makers to make us all pay more for motors.    They then usually
describe all the motors they have made and how they  never got hurt when the motors exploded
or burned on the pad. The attitudes are sometimes quite belligerent.

JUST BECAUSE you haven't killed yourself yet doesn't mean it is safe.  Stating it is safe or
harmless in a public forum is very irresponsible.  Young people 12 & 13 years old read these
forums!

Even complete awareness of the risks involved, understanding those risks and taking the
necessary steps to reduce those risks still doesn't make it a safe activity.  It is still a
dangerous thing to do.  If you are smart and have done your homework, then the risks can be
reduced to an acceptable, manageable level--but they cannot ever be eliminated, only managed.

Ask Morton Thiokol about risk management.   Ask Quest.  On a local note, ask Atlas Powder
Company in Joplin, Mo. near my home town.  Sometimes the numbers just don't work in your
favor.  Entropy rules every system.

There is some risk in every activity we do and every hobby known to humanity.

The ability to wisely assess that risk, determine if the risk is worth the reward, and then
take responsible steps to minimize the risk to yourself and others is not an inborn gift
granted to all of us equally.  It must be learned.  It must be practiced.

I want to make my own propellant.  I've had a couple of chemistry classes. I have some
background job experience and training in handling hazardous chemicals.  I have my BATF
permit.  I am NOT going to buy a propellant recipe book and start mixing propellant in my
kitchen.

I WILL take a propellant making course as soon as one is available near me.

Risk should never be ignored.

Jim Ball

 
 
 

"funnels" on the back of rockets

Post by Jesse Robeto » Wed, 22 Jul 1998 04:00:00


Uhhhhhh.... I dont know when someone mentioned making motors??? help!
Quote:



>> > I knew it would happen. :-(

>> > Somebody (very young, I suspect) has e-mailed me and asked what's
>> so bad about
>> > Zinc/Sulfur as a rocket fuel.  This individual had made several
>> Zinc/Sulfur  fueled
>> > rockets and thought Zinc/Sulfur was a very safe & stable fuel!

>> > I suggest anybody contemplating using Zinc/Sulfur (also known as
>> micrograin) first
>> > read the guest editorial in the Nov 1995 HPR magazine.  The writer
>> suffered 2nd & 3rd
>> > degree burns over 40% of his body from micrograin.

>> > jimball

>>   I talked with Brandy last night. AKA "Ball Park Brandy" He plumps
>> when you cook him!
>> I know it's cruel but we can laugh about it now since he lived. If
>> you think micro grain
>> is
>> safe you have NO CLUE!!! You should see Brandy it's god awful. He
>> was in a morphine
>> induced coma for over a month. He said you can't even describe the
>> pain. 3 years later he
>> still
>> has not fully recovered and never will. You need to ask yourself is
>> it worth it? I would
>> hope the
>> answer would be NOPE!!! DON'T BE A DOPE!

>> Rich....

> You said it, Rich--clueless.
>   I'm  glad to hear that Brandy is recovering.  There was never any
> follow up note in HPR.

> I am constantly amazed by the remarks  from individuals I see here and
> in other forums who get so upset and defensive when somebody remarks
> that motor making is dangerous and not for the uninformed to attempt.

> These same individuals then proceed to explain how safe and harmeless
> motor making is and how it's all a plot by the motor makers to make us
> all pay more for motors.    They then usually describe all the motors
> they have made and how they  never got hurt when the motors exploded
> or burned on the pad. The attitudes are sometimes quite belligerent.

> JUST BECAUSE you haven't killed yourself yet doesn't mean it is safe.
> Stating it is safe or harmless in a public forum is very
> irresponsible.  Young people 12 & 13 years old read these forums!

> Even complete awareness of the risks involved, understanding those
> risks and taking the necessary steps to reduce those risks still
> doesn't make it a safe activity.  It is still a dangerous thing to
> do.  If you are smart and have done your homework, then the risks can
> be reduced to an acceptable, manageable level--but they cannot ever be
> eliminated, only managed.

> Ask Morton Thiokol about risk management.   Ask Quest.  On a local
> note, ask Atlas Powder Company in Joplin, Mo. near my home town.
> Sometimes the numbers just don't work in your favor.  Entropy rules
> every system.

> There is some risk in every activity we do and every hobby known to
> humanity.

> The ability to wisely assess that risk, determine if the risk is worth
> the reward, and then take responsible steps to minimize the risk to
> yourself and others is not an inborn gift granted to all of us
> equally.  It must be learned.  It must be practiced.

> I want to make my own propellant.  I've had a couple of chemistry
> classes. I have some background job experience and training in
> handling hazardous chemicals.  I have my BATF permit.  I am NOT going
> to buy a propellant recipe book and start mixing propellant in my
> kitchen.

> I WILL take a propellant making course as soon as one is available
> near me.

> Risk should never be ignored.

> Jim Ball

 
 
 

"funnels" on the back of rockets

Post by Roy Gre » Thu, 23 Jul 1998 04:00:00


Quote:

>Uhhhhhh.... I dont know when someone mentioned making motors??? help!



   <snip> some reminiscing about Zinc-Sulfur rockets and the havoc the
propellant can cause..

Don't worry about it Jesse.  You've just witnessed how one topic can
morph into another topic in a newsgroup.   Happens all the time.
--------
Roy Green, Atlanta
NAR #12605   SoAR #007  (SoAR Web at www.soar571.com)
http://roygreen.home.mindspring.com/
to reply by E-mail, remove the 'xxx' from the address given

 
 
 

"funnels" on the back of rockets

Post by James L. Bal » Thu, 23 Jul 1998 04:00:00


Quote:

> Uhhhhhh.... I dont know when someone mentioned making motors??? help!

This reply was not directed at you, Jesse. :-)

You are at least attempting to learn the safety rules and how to improve
your building & flying skills.

We might kid you a bit, but we encourage you too.I did receive an e-mail in
response from someone attempting to tell me how safe Zinc/Sulfur was!

Jim Ball

 
 
 

"funnels" on the back of rockets

Post by Jesse Robeto » Thu, 23 Jul 1998 04:00:00


oh ok
Quote:


> > Uhhhhhh.... I dont know when someone mentioned making motors??? help!

> This reply was not directed at you, Jesse. :-)

> You are at least attempting to learn the safety rules and how to improve
> your building & flying skills.

> We might kid you a bit, but we encourage you too.I did receive an e-mail in
> response from someone attempting to tell me how safe Zinc/Sulfur was!

> Jim Ball