Neutronium95
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- Joined
- Jan 17, 2010
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Ever since following the Bare Necessities build thread as a teenager, I've been enamored with submin or flying case style rockets. Building something optimized purely for performance really appeals to me, and this year I really want to start actually building some of the designs that have been rattling around in my head.
Before I start going after records that require expensive motors, I wanted to actually learn how to do a lot of the things I'll need for extreme performance rockets in the future. That's where this rocket comes in. It'll be a flying case design, intended to fly on Aerotech 54/1706 motors. A very rough initial sim showed that a K1103 could get close to Mach 3, which will provide a good stepping stone to some of my future flights, which will exceed that speed.
My general plan for this project is to start with building a few different iterations of the nosecone and avbay, until I have something that'll fit the electronics and recovery system into as small of a nosecone as possible. From there, I'll be able to nail down the fin can design in order to keep it nice and stable. In the future, the same nosecone and avbay should transfer over to other motors for higher flights, allowing for K, L, and M record attempts by just swapping out the motor and fin can.
The design of the avbay and recovery system will be pretty similar to my H13 record attempt and my 75mm min diameter rocket. The electronics will be on top of the motor, and packaged as tightly as possible. They'll be in a coupler section, and the nosecone will fit over them. The remaining volume in the nosecone will be full of the parachute and shock cord. I'll be using cable cutter dual deploy, which has worked pretty reliably for me in the past. I'm not entirely certain what the final electronics configuration will be, but I'm currently leaning towards a Featherweight GPS and LL Electronics XLF-6V beacon for tracking, a Blue Raven for primary deployment and data logging, and an EasyMini as a backup.
Step one for this build is to try making a nosecone. I'll be using some techniques borrowed from some of my friends. To keep things simple, I'll be laying up Soller Composites fiberglass sleeves over a 3D printed plug. I'd like to eventually get a plug that could survive going in an oven to cure a higher temperature resin, but printed PLA will be fine for my initial experiments. I pulled the plug off of the printer this evening, and will do the first test layup this weekend.
Before I start going after records that require expensive motors, I wanted to actually learn how to do a lot of the things I'll need for extreme performance rockets in the future. That's where this rocket comes in. It'll be a flying case design, intended to fly on Aerotech 54/1706 motors. A very rough initial sim showed that a K1103 could get close to Mach 3, which will provide a good stepping stone to some of my future flights, which will exceed that speed.
My general plan for this project is to start with building a few different iterations of the nosecone and avbay, until I have something that'll fit the electronics and recovery system into as small of a nosecone as possible. From there, I'll be able to nail down the fin can design in order to keep it nice and stable. In the future, the same nosecone and avbay should transfer over to other motors for higher flights, allowing for K, L, and M record attempts by just swapping out the motor and fin can.
The design of the avbay and recovery system will be pretty similar to my H13 record attempt and my 75mm min diameter rocket. The electronics will be on top of the motor, and packaged as tightly as possible. They'll be in a coupler section, and the nosecone will fit over them. The remaining volume in the nosecone will be full of the parachute and shock cord. I'll be using cable cutter dual deploy, which has worked pretty reliably for me in the past. I'm not entirely certain what the final electronics configuration will be, but I'm currently leaning towards a Featherweight GPS and LL Electronics XLF-6V beacon for tracking, a Blue Raven for primary deployment and data logging, and an EasyMini as a backup.
Step one for this build is to try making a nosecone. I'll be using some techniques borrowed from some of my friends. To keep things simple, I'll be laying up Soller Composites fiberglass sleeves over a 3D printed plug. I'd like to eventually get a plug that could survive going in an oven to cure a higher temperature resin, but printed PLA will be fine for my initial experiments. I pulled the plug off of the printer this evening, and will do the first test layup this weekend.