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24's at pgi 2015


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#1 ddewees

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Posted 11 August 2015 - 01:43 PM

24%20inch%20shells%20at%20pgi_zpsvb5iok5



#2 asdercks

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Posted 11 August 2015 - 01:56 PM

 That is soooo cool!!! can wait to see a video of those shells 


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1. The talent of an artist.   2. The hand of a sculptor.   3. The heart of a poet.   4. The eye of a painter. 
5. The courage of a warrior.  -passfire movie.

#3 madchase

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Posted 11 August 2015 - 02:56 PM

How much do they weigh?

#4 Mumbles

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Posted 11 August 2015 - 04:54 PM

Pretty cool.  Do you know who made them?  I know Karl Maerz and a few others have attempted shells like this before to mostly good success.


Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

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#5 ddewees

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Posted 11 August 2015 - 05:21 PM

You can see Jim Widmann wrapping a third in the background, and he's built many this size. The individual shown in the picture, is one of our own.

Anyone care to guess who it is?

I'll give some hints...

Currently a student,
Lives in the southern United States,
Is a member of at least two clubs,
And you don't mess with people where he comes from... ;)

#6 Shunt

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Posted 11 August 2015 - 08:16 PM

"And you don't mess with people where he comes from..."

 

I do not think thinly veiled threats are well tolerated here, nor at fireworking, as I have read your posts there.



#7 gregh

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Posted 11 August 2015 - 09:41 PM

Here's my guess Dan: 

TYRONEEZEKIEL

 

Am I close? I know he was going and ya don't wanna mess with his state.


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#8 ddewees

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Posted 12 August 2015 - 03:13 AM

Well done sir. You are correct.

#9 gregh

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Posted 12 August 2015 - 05:02 AM

I am soooo jealous!  I hope y'all are having a great week out there.



#10 calebkessinger

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Posted 12 August 2015 - 07:28 AM

It's been great here Gregh! Thanks
My first year at PGI. Just been making rockets, visiting with folks and having fun. The zambellie show sun. Night was great and last night's show by casabella was wonderful.
Not much time for fooling around or posting on the forums here the days seem to just fly by and everyone is pretty tired. It was HOT yesterday and is suppose to be even hotter today.
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#11 Nickmaslo

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Posted 12 August 2015 - 08:36 AM

Tyrone was telling me about those 24's last night on the phone! Heard PGI is amazing this year! Have fun guys stay safe!

Edited by Nickmaslo, 12 August 2015 - 08:36 AM.

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#12 Geezer

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Posted 12 August 2015 - 09:13 AM

Looks awesome!  How much lift do they use?



#13 Hoppy

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Posted 13 August 2015 - 12:31 PM

Well, here are the 'standards' Geezer ...

 
"The only real way to find out how much of a certain kind of lift powder should be used, is to make a dummy shell having the same weight, size and shape as the shell being launched. Then the amount is upped or downed by trial and error. However, as a starting point, a rule of thumb is to use one ounce of 2FA black powder for every pound of shell weight up to 10 lbs, and 1/2 oz of lift for each pound in excess of 10 lbs. The larger the shell is, the more factors such as mortar length, shell length and shell clearance come into play. If a shell is light compared to the size (like a patern shell where fewer stars are used), a larger amount of lift should be used, and thus the rule of thumb will not apply for this type of shell."
 
 
For my large shells, I've followed the text in bold and that has worked thus far...no time or money for a 'dummy shell'  ... haha

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#14 ddewees

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Posted 13 August 2015 - 01:27 PM

here's a fun comparison... using fluid ounces (there are 12 fluid ounces in a can of beer)

 

DIAMETER_____________________VOLUME________
1" ----------------------------------> 0.290132 fl oz(US)
1-3/4" ------------------------------> 1.55492 fl oz(US)
2" ----------------------------------> 2.32106 fl oz(US)
2-1/4" ------------------------------> 3.30479 fl oz(US)
2-1/2" ------------------------------> 4.53332 fl oz(US)
3" ----------------------------------> 7.83358 fl oz(US)
4" ----------------------------------> 18.5684 fl oz(US)
5" ----------------------------------> 36.2665 fl oz(US)
6" ----------------------------------> 62.6686 fl oz(US)
8" ----------------------------------> 148.547 fl oz(US)
10" ---------------------------------> 290.132 fl oz(US)
12" ---------------------------------> 501.349 fl oz(US)
 
And for fun...
 
24" ---------------------------------> 4010.793 fl oz(US)
36" ---------------------------------> 13,536.429 fl oz(US)
 
 
So it would take over 300 beers to fill a 24 inch shell (pouring them into the shell)
 
:)


#15 gregh

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Posted 13 August 2015 - 08:11 PM

Beer Lampare...  not so impressive...



#16 TYRONEEZEKIEL

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Posted 14 August 2015 - 07:37 AM

Woah. Hey Dan. How did you get the photo of me? I actually am only a member of one club. Which two did you mean?

Just a disclaimer, I did not make those 24s those are Wildmann's I believe. His was for those is huge. Those stepper motors look like 5 gallon buckets.
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#17 ddewees

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Posted 14 August 2015 - 08:01 AM

I thought you were a member of the Pyrotechnic Artists of Texas...

 

PAT-logo.gif

 

I have access to "real time" satellite imagery, here in D.C. 


Edited by ddewees, 14 August 2015 - 08:02 AM.

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#18 TYRONEEZEKIEL

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Posted 14 August 2015 - 09:04 PM

I am a PAT member but that's the only club in my area!

Haha OK. That's what it was... That's some high res satellite photos! I'm thinking Paul may have had something to do with it!
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#19 ddewees

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Posted 15 August 2015 - 01:37 AM

I probably shouldn't have posted the picture without asking you first...

Sorry about that.

#20 TYRONEEZEKIEL

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Posted 15 August 2015 - 12:40 PM

No its cool!!! Don't worry about it! I'm glad you did. Those shells are super cool! Even cooler when they broke
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