timbudtwo Posted October 1, 2009 Posted October 1, 2009 Now that the turbo pyro short list secrecy is no longer open, I guess it is okay to talk about this. On a projects page for the new turbo pyro kit, a small girandola is shown to be included amongst the projects that can be completed with the turbo pyro kit. However, from the 2009 turbo pyro manual, nothing of this is mentioned. Here is the photo that was displayed. All rights go to turbo pyro, skylighter, etc... The included video (Am I allowed to link to something I didn't make?) is quite impressive for such a small device. The question I have is are there similar instructions for this around? The plastic wheel that the drivers are mounted on seems to be pre-made, or at least fabricated from something (my guess is the bottom of a plastic jar) quite smartly. The suppliers website, nor their archives, explains this. Does anyone have any more info on these little girandolas? Thanks,Tim
Twotails Posted October 1, 2009 Posted October 1, 2009 I just orderd (well at 12'oclock) the turbo pyro. I have seen the tut your talking about, and it seems difficult (at least thats what it says) "The Girandola FrameThe bottom of a 5-6-inch diameter chemical bucket makes a strong andlight girandola frame, perfect for our purposes in this project." There's more on how to cut it also.
timbudtwo Posted October 1, 2009 Author Posted October 1, 2009 I just orderd (well at 12'oclock) the turbo pyro. I have seen the tut your talking about, and it seems difficult (at least thats what it says) "The Girandola FrameThe bottom of a 5-6-inch diameter chemical bucket makes a strong andlight girandola frame, perfect for our purposes in this project." There's more on how to cut it also. Oh, so it actually is IN the new turbo pyro book? I was going to order the kit, however I could not justify spending $200 on supplies I mostly had to get girandola instructions, and a star pump. I am looking at the covers for cd-R spindles. They seem to be something worth looking into. Perhaps they will release this years Turbo Pyro handbook to APC . If you end up building one, could you give some particulars on driver size, composition, and how you built it? Thanks!
Mumbles Posted October 2, 2009 Posted October 2, 2009 Jim Biersach has developed a fun little girandola. It's made from the bottom of a 5qt ice cream bucket and class C drivers. There are articles in the PGI bulletin, or on passfire. I'm sure if you e-mailed him, he'd send off the handout he has.
dagabu Posted October 2, 2009 Posted October 2, 2009 (edited) The girandola addition was added to the first kit a month ago and if you didnt shoot all your bottle rockets off already, you can make a few dolas with what you had left. They work well but will go sideways just like the big ones. Girandola- Definition; Italian for "If I can see you, I can find you" I hate to say it but I got my kit in June for $117.00 plus shipping. Edited October 2, 2009 by dagabu
Xtreme Pyro Posted October 2, 2009 Posted October 2, 2009 (edited) Jim Biersach has developed a fun little girandola. It's made from the bottom of a 5qt ice cream bucket and class C drivers. There are articles in the PGI bulletin, or on passfire. I'm sure if you e-mailed him, he'd send off the handout he has. Mumbles, There is actually a video on youtube about the little girandolas they made using class c rockets as drivers. It's a video from the PGI convention, from a class they had. Here's a link: Edited October 2, 2009 by Xtreme Pyro
Mumbles Posted October 2, 2009 Posted October 2, 2009 That would be Jim's Class. The WPAG has a mini-girandola competition every year. It's a blast.
timbudtwo Posted October 2, 2009 Author Posted October 2, 2009 Jim Biersach has developed a fun little girandola. It's made from the bottom of a 5qt ice cream bucket and class C drivers. There are articles in the PGI bulletin, or on passfire. I'm sure if you e-mailed him, he'd send off the handout he has. Would his e-mail be the jimpyro at hobbyhorse dot com one? And Thanks! I hate to say it but I got my kit in June for $117.00 plus shipping. The new kit that was only released to people on a short list today at noon (probably already sold out) is not that price.
Twotails Posted October 2, 2009 Posted October 2, 2009 With shipping and other charges, it was $205 (thats without all the extras)
dagabu Posted October 2, 2009 Posted October 2, 2009 The new kit that was only released to people on a short list today at noon (probably already sold out) is not that price. Yup, that's the second round, I got in on the first round. As of this morning, there were still kits available. Dave
flamehead1 Posted October 7, 2009 Posted October 7, 2009 Yup, that's the second round, I got in on the first round. As of this morning, there were still kits available. Dave I got one of those kitsNow just need the ebook
dagabu Posted October 7, 2009 Posted October 7, 2009 (edited) I got one of those kitsNow just need the ebook http://www.apcforum.net/forums/index.php?a...amp;showfile=28 Edited October 18, 2009 by TheSidewinder corrected link
BadDroid Posted October 18, 2009 Posted October 18, 2009 I find girandolas very interesting, however i unfortunately have very limited space and materials. I was thinking about making a small girandola using "fuse rockets" as the motors. Any thoughts would be appreciated.
Twotails Posted October 18, 2009 Posted October 18, 2009 It would have to be incredably small, like not more then 4in across with four drivers. I might test that out sometime, it is a great idea, will it work, possably not, but new things are found through exparementation.
Ventsi Posted November 12, 2009 Posted November 12, 2009 (edited) I'm wondering, what should the lift/wight ratio be? For normal rockets you want a rocket to produce its weight AT LEAST 3 times. What would the rule of thumb be for these? I'm thinking about making a tiny 5" dia. girandola using 1/4"- 3/8" core-less whistle drivers[?] with a friend as a last thing before NYE production kicks in. Any help here? Edited November 12, 2009 by Ventsi
dagabu Posted November 12, 2009 Posted November 12, 2009 I'm wondering, what should the lift/wight ratio be? For normal rockets you want a rocket to produce its weight AT LEAST 3 times. What would the rule of thumb be for these? I'm thinking about making a tiny 5" dia. girandola using 1/4"- 3/8" core-less whistle drivers[?] with a friend as a last thing before NYE production kicks in. Any help here? The boys just got back from 4F and Kyle made a comment that the thrust should be between 2:1 and 2.5:1. Sounds good to me.D
BadDroid Posted November 14, 2009 Posted November 14, 2009 Ok I have some info to report back about a girandola made of fuse. I used a card stock hexagon with about a diameter of about 5 inches, and 3 motors. They were 7 peices of 1/8" visco, 1" long. They were nozless, and I only made it a wheel (horizontal motors, no angle) to test it out first. those 3 drivers made it SPIN FAST. It was so powerful it almost ripped apart the sides the first time, and from then on I used hot glue to keep the sides up. I am convinced you could get it to fly. I am going to not continue pursuing this, because I lack both a place to launch girandolas, seeing as how unruly they are, and i lack the pyrotechnic experience to make them. I would be endangering myself and my family too much. Hopefully once I have more experience and a better launch site, I will continue this.
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