This build was based off the Estes Der Mega Red Max kit originally created by Estes. I was fortunate enough to be able to purchase a 4-in nose cone and body tube, which were available from their website in September 2023. I secured a plywood upgrade kit from Rocketry Works. All the other parts I had or made via 3D Printer.
I have decided to cut the bottom of the nose cone off and fit the IPL ebay. This will also give me interior access to the nose cone to include a counterweight system. The top of the ebay sled has a hole for 1/4-20 all-thread that will allow me to capture weights above the ebay between two nuts. This makes the ebay weights adjustable in the event I wish to use a heavier motor/motor case. So crazy it just might work.
I created the decals by scanning the waterslide decal sheet from a standard Der Red Max kit. I converted this to SVG and imported it into Cricut Design Studio where I resized them (sort of) to scale. the black band around the forward end of the body tube and the squared-off crosses are spot on but the WWI skulls and other bits were a bit large. I created text similar to the Top Secret font. See the image below for a detail of the white and black. It is not obvious how to layer the two colors but most of the time I started with black and laid down the white on top since they were either cut to fit or the black was contiguous.
Before giving the launch report, I wanted to mention that I was still tail-heavy. Even after adding the modified IPL nosecone avionics bay/sled. One of the mods I added was a 6mm hole at the very top of the sled. I cut a piece of all thread to size where it would fit into the tip of the nosecone. I then 3D printed three weights, 15g, 60g, and 120g for modifying and tuning the stability. I ended up using the 120g weight (which was just over 100g in reality). This brought my stability to 1.18 CAL.
The conditions were perfect for rockets. The weather was sunny, ~65 degrees F, with wind 2-4mph. I used an Estes altimeter since my Eggtime Quantum was lost in the Cookie Monster crash. I also employed the Jolly Logic Chute Release with a release altitude of 600ft. I added my onboard Runcam2 4k as well.
The launch was picture-perfect. When the rocket motor ignited, you could briefly see the green glare from the H250. It punched into the sky at ~ 90ft/sec up to an altitude of 1,068ft. The deployment was nominal as was the chute release. The rocket landed about 30m from the pad.
Highlights of the launch can be seen here: https://www.youtube.com/watch?v=-IoUA4amfvw