dagabu Posted May 15, 2011 Posted May 15, 2011 (edited) Hehe, I know that I should use less fuel over the spindle when I will put a header on it. This was just a motor test to see if it will cato or not because of a long spindle. I liked that rocket, it had a nice long whistle and shot off like a bullet! Put a few grams of flash on top of the fuel and you will have a nice report. Great job! Yup, LWS stands for Long Winded Screamer, it's also the tooling that had proven it's value for lifting shells. It is only the delay that makes it a LWS, not the tooling itself. I agree Freaky, I should adopt that as my tag line. "Freaky, why don't you demonstrate the way it works?" -dag Edited May 15, 2011 by dagabu
Zmuro Posted May 15, 2011 Posted May 15, 2011 The tube was 180mm long and the motor also had 15mm bentonite plug on top. This is the tooling I used. http://www.shrani.si/t/a/40/3ObKl1IG/24mmwhistletooling.jpg
dagabu Posted May 15, 2011 Posted May 15, 2011 The tube was 180mm long and the motor also had 15mm bentonite plug on top. This is the tooling I used. http://www.shrani.si/t/a/40/3ObKl1IG/24mmwhistletooling.jpg Yup, that sure looks like the LWS drawing. -dag
Mumbles Posted May 15, 2011 Posted May 15, 2011 That's strobe tooling. Somewhat of an intermediate between LWS and more standard whistle tooling.
FREAKYDUTCHMEN Posted May 15, 2011 Posted May 15, 2011 It's how you look at it, as long as the fuel is whistle, it's a whistle engine to me. Just because some one gave that kind of rocket that name we should all call it a lws? and dagabu, I don't need to demonstrate anything, you've seen 2 of these 24mm rockets
dagabu Posted May 15, 2011 Posted May 15, 2011 It's how you look at it, as long as the fuel is whistle, it's a whistle engine to me. Just because some one gave that kind of rocket that name we should all call it a lws? and dagabu, I don't need to demonstrate anything, you've seen 2 of these 24mm rockets Ohhhh, Kay.... For the rest of you, add an extra four increments of whistle fuel above your spindle and add a significant weight to the rocket and post your results. Results speak for themselves. -dag
dagabu Posted May 15, 2011 Posted May 15, 2011 I believe your hypothesis was 800g, my view is that a 24mm ID motor filled with whistle fuel enough to sustain an audible "whistle" for 15 seconds like the one on the last page, would head over and "Lawn Dart" about 10 seconds into the flight. I am headed out for beer and pizza, have fun you all! -dag
FREAKYDUTCHMEN Posted May 15, 2011 Posted May 15, 2011 The 800gr was an example of a 24mm rocket that could fly for 25 seconds before hitting the ground. That was not a hypothesis, it was by experience.Just to let know how powerfull such rocket can be. Zmuro asked me about the dimensions of my tools a long time ago, so I'd expected he have used these, but obviously he used a spindle which made the rocket ± 20% less powerful. Putting a 2" or 3" cannister filled with flash would be a nice heading to put all the kinetic energy into to give it a straight flight. A 6" round shell would be nice for a straight flight too, and a nice effect of course. All my powerful rockets fly bad without any payload (almost exactly like the one Zmuro showed), and wit payload the stick lenght is less important and rockets fly perfect.
dagabu Posted May 16, 2011 Posted May 16, 2011 The 800gr was an example of a 24mm rocket that could fly for 25 seconds before hitting the ground. That was not a hypothesis, it was by experience.Just to let know how powerfull such rocket can be. Zmuro asked me about the dimensions of my tools a long time ago, so I'd expected he have used these, but obviously he used a spindle which made the rocket ± 20% less powerful. Putting a 2" or 3" cannister filled with flash would be a nice heading to put all the kinetic energy into to give it a straight flight. A 6" round shell would be nice for a straight flight too, and a nice effect of course. All my powerful rockets fly bad without any payload (almost exactly like the one Zmuro showed), and wit payload the stick lenght is less important and rockets fly perfect. Any video? -dag
FREAKYDUTCHMEN Posted May 16, 2011 Posted May 16, 2011 (edited) Hows your memory? 24mm whistle to 6 inch.mov Edited May 16, 2011 by FREAKYDUTCHMEN
dagabu Posted May 16, 2011 Posted May 16, 2011 (edited) 5 seconds of whistle.... Only 10 more seconds to go. "The 800gr was an example of a 24mm rocket that could fly for 25 seconds before hitting the ground. That was not a hypothesis, it was by experience." Lets be clear, the rocket WITH a 800g heading attached, in flight for 15 seconds while an audible whistle is heard before the shell is broken... in the air. My memory is fine, oh wait, what were we talking about? -dag Edited May 16, 2011 by dagabu
FREAKYDUTCHMEN Posted May 16, 2011 Posted May 16, 2011 Ok show me your great rockets... I don't feel like I have to explain anything more, you're too pigheaded.If you don't want to believe Zmuro's rocket flies nice with some weight on top, well go your way, I don't care.
dagabu Posted May 16, 2011 Posted May 16, 2011 Ok show me your great rockets... YouTube and pyrobin have about 100 of them so far and another 100 or so still have to be rendered. What in particular would you like to see? I don't feel like I have to explain anything more, you're too pigheaded.If you don't want to believe Zmuro's rocket flies nice with some weight on top, well go your way, I don't care. Yup, that's pretty much what I thought this would break down to. Throw out an insult, call it done and supply no proof. I have no issue with Zmuros rockets, they are pretty dang sweet! -dag
SjeefOne Posted May 16, 2011 Posted May 16, 2011 Hows your memory? Nice one..Went like a bullet. But a 6", doesn't that weigh a lot more then 800g?
dagabu Posted May 16, 2011 Posted May 16, 2011 (edited) This is 24mm ID whistle rocket I launched today. It was quite powerful and I loved the sound, but I have one question. How can I make the rocket flight straight up and not at the angle? I used one stick for stabilization about 10x10mm and 90cm long, do you think it was to short? Back on subject, shall we? Initial thrust will often do that, attach a second stick and the thrust will not push the motor to the side as badly. Here is one from last year, 700g on a 19mm BP motor, watch how it goes sideways. Freaky has a great point in thinking about all of the forward weight that needs to have balance as the motor starts to push hard. VIDEO I will find my next video of the same rocket with two sticks and the clean flight it took. -dag Edited May 16, 2011 by dagabu
FREAKYDUTCHMEN Posted May 16, 2011 Posted May 16, 2011 Nice one..Went like a bullet. But a 6", doesn't that weigh a lot more then 800g? Thanks Sjeef, the 800 grams was just an example of a test rocket, this one flew for 25 secconds.The 6" ballshell was about 1000grams, still went a bit too high.
FREAKYDUTCHMEN Posted May 16, 2011 Posted May 16, 2011 VIDEO You call that one a rocket? In spain they call those borrachos.
ExplosiveCoek Posted May 16, 2011 Posted May 16, 2011 So for a 6'' shell your tooling should be a bit shorter actually Freaky? Dagabu, what I can say from my experience is that a rocket also will go sideways when there isn't enough power to make it go straight up, or just like Freaky said when there is no significant header at all. Maybe 700g for 19 mm was a bit overkill for just a bp motor with standard spindle? It might be doable but you'll need some max performance rockets to be able to do so.
FREAKYDUTCHMEN Posted May 16, 2011 Posted May 16, 2011 No the spindle length is ok Coek, another fuel would be better. I had only the hottest fuel by hand at the time.If you make the spindle shorter, you can't use it for 6" cans and 7" round shells anymore
dagabu Posted May 16, 2011 Posted May 16, 2011 Dagabu, what I can say from my experience is that a rocket also will go sideways when there isn't enough power to make it go straight up, or just like Freaky said when there is no significant header at all. Maybe 700g for 19 mm was a bit overkill for just a bp motor with standard spindle? Take a second look at my posting EC, the next try was with two sticks and it flew straight. The rocket took off quickly and was not underpowered. -dag
ExplosiveCoek Posted May 17, 2011 Posted May 17, 2011 No the spindle length is ok Coek, another fuel would be better. I had only the hottest fuel by hand at the time.If you make the spindle shorter, you can't use it for 6" cans and 7" round shells anymore Ah that's an option to ofcourse! But I haven't seen any 7'' hemi's in your shop so far . Take a second look at my posting EC, the next try was with two sticks and it flew straight. The rocket took off quickly and was not underpowered. -dag Alright, that's quite a powerful motor you've got there then. Care to share the dimensions of the tooling and fuel you're using? Looking forward to the vid (straight launch of course! )
FREAKYDUTCHMEN Posted May 17, 2011 Posted May 17, 2011 Ah that's an option to ofcourse! But I haven't seen any 7'' hemi's in your shop so far . Within a couple of weeks
SjeefOne Posted May 17, 2011 Posted May 17, 2011 @Freaky, What kind of sticks do you use for these 24mm rockets? And will they survive a 31.7mm motor as well? @Dag, looking forward to the vid as well
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