MinamotoKobayashi Posted July 15, 2019 Posted July 15, 2019 (edited) Hello.First of all I must thanks a lot Zmuro because he have built for me a giant tool set that has permitted me to built a massive1Kg core burner r-candy rocket with a very long conic spindle.The total lenght of the rocket was 410mm, the inside diameter 38mm, the wall thickness 2mm.I used a reusable aluminum body with 3x1250mm long samba sticks to counterbalance the rocket.This rocket will be suitable for 8" and perhaps 10" shells. There is again space to improve the thrust, such as increase the packing pressure,reducing the titanium percentage and adding perlite to the mix.Here is the impressive launch: https://youtu.be/f-tNnd2BWqE Then, I built a scary 4 inch shell half filled with flash powder+titanium+rice hulls as fluffing agent.I used a r-candy powdered rocket suitable for 5 inch shells, and since the ball was relatively heavy, I reached an average altitude of 500 meters!The shell was heavy confined to improve the explosion a lot.It was used about 150 grams of flash powder (58% KCLO4 and 42% German Dark formula). https://youtu.be/c9NT7aJENm8 My cameraman-friend was so scared from the big dazzling flash generated (it seemed a sun in the night) that lower the camera almost istantly Obiouvsly the cell microphone could not capture the tremendous loud bang of the explosion.Here is a shot of the explosion. Take a look how big show the flash at 500 meters (no zoom): Finally, a beautiful 6" shell with golden glitters+red+strobe: https://youtu.be/1DzJ40SvAf0 Enjoy Edited July 16, 2019 by MinamotoKobayashi 5
JOPETES Posted July 15, 2019 Posted July 15, 2019 (edited) Bellísima carcasa glitter+red+strobe!! Edited July 15, 2019 by JOPETES
Bigmark Posted July 16, 2019 Posted July 16, 2019 Do you have any pictures of the rocket it's self be cool to see.
MinamotoKobayashi Posted July 16, 2019 Author Posted July 16, 2019 Hi Bigmark.I'm about to build another version.The new version will have a lot of improvements: - I will increase the packing pressure of the mix inside the rocket;- I will add 10% perlite;- I will eliminate the titanium mixed inside the r-candy granulated mix and I will add finer mesh only in the delay part. These three moddings will enhance a lot the thrust. I will post a full tutorial in a new thread, stay tuned 1
Bigmark Posted July 20, 2019 Posted July 20, 2019 Looking forward to seeing it. Looking forward to seeing it.
MinamotoKobayashi Posted July 21, 2019 Author Posted July 21, 2019 Please be patient, I'm just prepping the propellant. This kind of rocket needs about 700 grams of granulated r-candy mix!
Piccaso Posted September 22, 2019 Posted September 22, 2019 Very nice, I loved the one with the report and the stars.
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