BDB
Absent Minded Professor
- Joined
- Aug 22, 2015
- Messages
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I am just starting to get back into rocketry, and I am feeling like a kid again. I am hoping to build a few MPR kits and to enjoy working my way up to HPR. Last month I launched with a great group of guys here in Rhode Island (www.rimra.org). I had my kids build some Estes E2X kits, and I dug a few of my old rockets out of the attic. All of them flew great, with one painful exception. One of my favorite rockets 25+ years ago was my Estes Magnum. It's a 2-stage with a clear payload bay that runs on a D12-0 booster and B or C engines for the upper stage. Here is a picture of me loading it onto the launch rod, my oldest daughter holding all that was left after the second stage spectacularly burned in mid-air, and the payload that was lost (courtesy of my youngest daughter).
I figure that I still have the nosecone, payload bay, coupler and some fins to use as templates, so why not completely rebuild it? But this time around, I want to build it so it will run on Estes E16 (29 mm) motors, since they weren't available when I was a kid. Presumably, I could also run 24 mm D, E, and F engines with an adaptor. I downloaded the plans for the original Magnum and then designed the mod in OpenRocket, but the simulation was giving me some weird data. I just downloaded the free trial of RockSim, but I'm wrestling with loading the E16 engines into the database, so I thought I'd open source my plans to you guys. Can I get your opinions on this?
View attachment Magnum II.rkt
I figure that I still have the nosecone, payload bay, coupler and some fins to use as templates, so why not completely rebuild it? But this time around, I want to build it so it will run on Estes E16 (29 mm) motors, since they weren't available when I was a kid. Presumably, I could also run 24 mm D, E, and F engines with an adaptor. I downloaded the plans for the original Magnum and then designed the mod in OpenRocket, but the simulation was giving me some weird data. I just downloaded the free trial of RockSim, but I'm wrestling with loading the E16 engines into the database, so I thought I'd open source my plans to you guys. Can I get your opinions on this?
View attachment Magnum II.rkt
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