NeighborJ Posted May 27, 2017 Share Posted May 27, 2017 Don't worry, it was meant as a pun. I save the smalls from screen granulated BP for use as rocket fuel, it does flow nice and handles well. Link to comment Share on other sites More sharing options...
JAX7030 Posted February 21, 2021 Share Posted February 21, 2021 I have and love using the 1# Super BP Core burn tool kit for the past 2 years. I use milled bp the charcoal is from pine and oak pallets then granulated with no binder and without any clay. Rammed with a heavy mallet. They work excellent! With a 4' stick of bamboo about 3/8" diameter (Garden Section) We get 3 and 4 inch ball shells to serious altitudes and only about 5-7% or so CATO . The tool kit says it can make whistles too. I just tried pressing some whistles with a 3 ton Dake arbor press (the factory states 36 to 1 ratio) I know im hanging 120# or more on the handle. I also read that the square inch is ,44 or about, It is even less because of the core. 120# X 36=4320. 4320 \.44= 9800 PSI but just CATO 3 for 3 the same tubes. The company also has a Whistle kit with a much smaller spindle, I thought the first wasnt pressed enough. The second rocket was pressed with more Dwell time and and extra weight the 3rd rocket was slowed down a bit with extra vaseline? Would you construct number 4 with more vaseline or a shorter spindle?Thank you in advance Link to comment Share on other sites More sharing options...
Mumbles Posted February 22, 2021 Share Posted February 22, 2021 Which whistle mix are you using? Some are a bit more tame than others. Also, did the tooling come with any formulas or instructions for whistle? I'm not overly familiar with the tooling on a personal level. Link to comment Share on other sites More sharing options...
JAX7030 Posted February 22, 2021 Share Posted February 22, 2021 (edited) 70 potassium Perchlorate and 30 sodium benzoate +5 vaseline. Using the Black Super BP core burner kit from Amazon. Its been awhile but I don't remember getting instructions. I came across some more formulas that I will have to do some conversions to make the proportions of this batch match them however after finding a simple way to make shorter spindles I was going to give that a shot first. Thanks Edited February 22, 2021 by JAX7030 Link to comment Share on other sites More sharing options...
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