This post is a repository. Tried ball milling AP to get a bimodal AP particle distribution for a 80% solids (barely) pourable formula. Lortone 45C ball mill 1840gr of ceramic grinding media 20mm balls 500gr of 200um spherical AP 3 hours run time. powdered sugar like consistancy 20211017 – For BKNO3. Lortone 45C ball mill
Below is a quick representation of the head-end-ignition setup as used on the GIGA III rocket. There are many different configurations which work, including a more integrated, pyrotechnic, flame thrower type solution. However for the sake of robustness and proven designs I remained close to the modified NERO style M10x1 head end igniter body and the LD
On February 3rd we had a nice day of testing with blue skies, little wind and 6° Celsius. Two motors were to be tested both with the goal of having high thrust and short burns so they could be used as a booster for the forthcoming 2 stage rocket. The first motor made by LD
Awaiting some final ingredients I started to characterize the old-stock HTPB. I expect the HTPB I have is similar to R45HTLO so an EW of 1190 is used in the curative calculations. Small 50gr batches (measured to a hundreds of a gram) were made to evaluate the different Cure Indexes 0.9 – 1.3. The curative