cplmac Posted September 16, 2007 Author Posted September 16, 2007 That would be an INSANE girandola. I don't know if the PGI has enough space for something like that. I would absolutely be game for it if I could find somewhere to test it.
psyco_1322 Posted September 27, 2007 Posted September 27, 2007 Hay cplmac whats the lifting capacity on one of your 3" whistles? Me and asilentbob may have some heavy payloads that you can sit atop some of those at the convension next year.
frogy Posted September 27, 2007 Posted September 27, 2007 I think it could easily haul a 10 pound payload, since I handcored the core I can size it to suit the rocket specifically. I remembered seeing this when he made the rockets so I looked back and it was still there... I think he was just guessing, but I wouldn't doubt it... A standard 3 pound core burner lifts about a pound, and a 6 pound core burner about 4 pounds... so a what 49 or 60 pound whistle should be able to lift over 10 pounds... especially with a 1.5" by 4" core...
Mumbles Posted September 27, 2007 Posted September 27, 2007 I think 10lbs is too low. I'd say given some dialing in, it could take up a 12" shell, which weighs in around 18-25lbs. Maybe Steve LaDuke will make him a 3" ID Hybrid tooling set. If a 2lb rocket could take up an 8" shell(~5-6lbs). Then a 60lb rocket could do 162lbs, assuming the carrying capacity goes up proportionally to the cross sectional area of the tube. So, who's bringing the 24" shell?
cplmac Posted September 28, 2007 Author Posted September 28, 2007 Mumbles I'm bringing another one to the shoot on Saturday, not sure what I'm going to head it with but I'm thinking an 8" shell. I really don't want to use the WPAG shoot as a test fire but I'm also considering just putting 10 pounds of dead weight on it.
Mumbles Posted September 28, 2007 Posted September 28, 2007 If this wasn't going to be my very first 8" shell, I'd let you strap it on the top of it. If you'd like I'll definatly have a few 6" balls ready, and I'd be happy to save 80g of lift if you want to put one on top.
cplmac Posted September 28, 2007 Author Posted September 28, 2007 That's alright, we've got a case of 8" brocade crowns in the magazine.
cplmac Posted September 29, 2007 Author Posted September 29, 2007 I just finished pressing the motor and drilling the core, this one has a 5" core with a 3.25" delay so it should scream for a good little bit. Still haven't decided on the head, I really need to get to it since we are leaving in 6 hours.
Mumbles Posted September 29, 2007 Posted September 29, 2007 My 8 isn't making it anyway. I under estimated drying time of layers. I'd have to stay up all night to even have a concievable chance of getting it done in time. After a late night yesterday, it's just not happening. I'm surprised I haven't just fallen over where I'm standing yet.
TheSidewinder Posted September 30, 2007 Posted September 30, 2007 I just got back from the WPAG shoot, and all I can say is, WOW!! He put an 8" shell on that thing, and it didn't look out of proportion. That rocket *easily* lifted the 8" shell, and what a gorgeous break it was! I think you could have put a lightweight 10" on it, like a shell of shells, and had the same result. Keep making those rockets, Mac. That was the highlight of the show, IMHO. Mark
cplmac Posted October 1, 2007 Author Posted October 1, 2007 Gracias Mark, I was surprised it took that shell the way it did. It was pretty heavy for an 8". I think you are right, I might be able to get a homemade 10" TT shell on there or another lightweight 10" of some type. Looks like I might be putting that paper to use... 3" Ti Whistle with 8" color changing chrys head 3 pound 3 stage Ti Whistle
daily1986 Posted October 1, 2007 Posted October 1, 2007 simply amazing! I wish that we had someone in PPA that made rockets. Maybe I will have to fool around with some smaller ones
cplmac Posted October 1, 2007 Author Posted October 1, 2007 Here's a couple pre-fire pics, I couldn't get the two idiots out of the frame... http://pyrobin.com/files/me%20terry%20and%20the%20rocket.jpghttp://pyrobin.com/files/core%20display.jpg
k1ley4evr Posted October 1, 2007 Posted October 1, 2007 cplmac are you gonna be at the midwest fireworks festival this weekend?
qwezxc12 Posted October 1, 2007 Posted October 1, 2007 cplmac, Do you know the weight on that 8"?...in the 2500g - 3kg range? It looked like your rocket lifted it pretty effortlessly. Awesome.
psyco_1322 Posted October 1, 2007 Posted October 1, 2007 Have you ever considered making one of those 3" that are a bit longer? Say using a 15" or maybe longer tube? Wouldnt that get you more lift and hight?
cplmac Posted October 1, 2007 Author Posted October 1, 2007 The 8" shell weighed in at 7.4 pounds which is somewhere around 3300 grams. I did make this rocket longer than normal. Usually I make the core 4" long this one was 5" but I'm not a big fan of upping the core because you lose the whistle. I'm going to have to make it bigger though to carry the larger payloads.
''' Posted October 1, 2007 Posted October 1, 2007 That are massive rockets ! And the shell was amazing. Are you a pro? Again the rockets are giant. Have a nice day.
cplmac Posted October 1, 2007 Author Posted October 1, 2007 I'm a professional amateur. I didn't make the shell it was Lidu I think.
jacob Posted October 1, 2007 Posted October 1, 2007 Cplmac, did you say you drill the core on those rockets? that seems dangerous with whistle mix . amazing rockets anyway though.
crazyboy25 Posted October 1, 2007 Posted October 1, 2007 wow i think its fair to say those dont qualify as rockets but rather small inter-continental ballistic missiles. also is the core diameter to ID ratio on those rockets standard if not mine might be a little small. also how much and what mesh titanium do you add?
psyco_1322 Posted October 2, 2007 Posted October 2, 2007 Well I'd hate to see your rockets loose there whistle. You should try soemthing like that one guy did at the convention this year, he have 3 huge bp rockets tyed together and quick matched then all to light off at once. He said he'd done it a few times before with sucess, and he did it again right in front of everyone. Putting three of them whistle together would lift one hell of a payload. I'd also like to see a hybrid motor that big also, man that'd deffinately have some capacity also! None the less me and asilent bob will have something for you to put on those things come next year other than a commercial shell. Well have fun and be safe, and careful with that press, I'd hate to see that happen again.
cplmac Posted October 2, 2007 Author Posted October 2, 2007 The core is standard, 50% of ID, and yes I did hand core it VERY slowly. I did see that 3 motor rocket, saw one in person this past weekend from the same guy. It's 3 4lb BP motors and the rocket is a real monster.
k1ley4evr Posted October 3, 2007 Posted October 3, 2007 I am, and I'll be bringing some toys. see you there buddy
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