This write-up of the core burner test is condensed as it is very similar to the test performed with the hybrid finocyl / core burner test. On Friday 21st of February the KILO core burner motor was static tested on a 66/12 reload. This was motor was designed for maximum volumetric loading, lowest core mass
On Sunday 26th of January the KILO hybrid finocyl core burner motor was static tested on a 66/12 reload. This 66/12 propellant is a modified version of the Slow White propellant where the 4%Zn was replaced with 4% AP resulting in 66% AP and 12% Al at 78% solids. The result is a very docile
Some photos of the activities and casting of the hybrid finocyl core burner. Notes: Cylindrical foam core length: for simplicity 580mm / same length as the standard foam plate length. 580 is also approximately 1/2 of the liner length (but slightly less). Finocyl foam core will be trimmed to length in casting jig and also
On Friday the 13th, (an omen of bad luck?) JVDB & LD tested the KILO 4GXXL motor. This motor has an extended casing to hold more propellant when compared to the KILO 5GXL. The 4GXXL uses a Black Cat Rocketry 3″ phenolic tubing for liner and casting tubes. With its four XXL bates grains, the
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
On Friday 19h October we tested a smaller KILO 3G motor with a simulated total impulse of approximately 5.000Ns. The famous Alumaflame propellant formula was modified by removing the AP to make it pourable but maintaining the same CuO/Al percentages. This 3G motor was designed to be a full L or baby M1650 with a 3s burn suitable
On September 20th, LD and JVDB static tested a joint monolithic motor project. JVDB provided the design, foam cores & motor hardware. LD developed the grain casting process, assembled the motor and provided the test stand. This motor was our first try at a monolithic grain motor with a complex foam core. We believe case bonded, monolithic grains are a
On 20.09.2018 we tested 3 motors of which the monolithic moonburner was my own and a monolithic finned core / star grain was a joint venture with LD. The moonburner burn was succesful and the thrust curve spot on according to Bursim simulations. At the end of the burn there seems some off-center thrust. Upon post firing inspection it