SLD2024-02 – On Friday 31-05-2024, we had the 10th anniversary of the Intimidator 5 rocket and its 9th flight. It is not often that we have a 10 year old rocket still in flyable condition. Surely she has her battle scars, the paint job isn’t as shiny as it once was but she still flies
On May 17th 2024 the KILO half PML liner APCP motor was tested. This motor was developed to be launched in the Intimidator 5 rocket for launches in the Netherlands.Design criteria: Apogee between 2-3km. Having limited total impulse 5.000-6.000Ns not overshooting the wavier or needing to cancel a flight in less favorable wind conditions. Relatively
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 Container: 1500ml // 1,5liter Ceramic grinding media 20mm balls – 1400gr is approx 750ml Lortone 45C ball mill loading instructions: 1/2 full of milling media 1/4 full of
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