boatgeek
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- Dec 27, 2014
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Introducing Stage-a-saurus, my first HPR staged rocket and another terrible, terrible dad joke. Hey, they'd take away my Dad's union card if I didn't make them, so here we are.
This is a fairly basic staged build. The genesis was realizing after the disastrous flight of Big Bird last year, I need to work on my staging before I do such an ambitious cluster project. Baby steps and all. The high school TARC team I mentor had an oddball tube between 38mm and 54mm that someone had donated. Since it wasn't really useful to the team, they were gracious enough to let me have it.
Motor mounts are 29mm on both the booster and sustainer. The nose cone is 3D printed, as is the AV bay that holds an Eggtimer Proton and an Eggfinder Mini. A JLCR will minimize drift. In an ideal world, the nose would have been a little longer, but I was limited by borrowed printer capacity. The coupler that holds the interstage is a custom fiberglass layup. It happens that a 1 1/4" PVC pipe in the basement was just the right size for a mandrel for that.
I'll have some pictures up tomorrow. In the meantime, a sim to look at. An F79 (24mm 3G CTI smokey) to F36 (29mm 1G CTI blue) is about the lowest possible altitude at 500m apogee. I would like to work up to an H163 (29mm 3G CTI white thunder) in the booster and either a G54 red or G33 mellow in the sustainer. Those top out at 1500m. 5000 feet isn't too shabby on full H/baby I total impulse!
This is a fairly basic staged build. The genesis was realizing after the disastrous flight of Big Bird last year, I need to work on my staging before I do such an ambitious cluster project. Baby steps and all. The high school TARC team I mentor had an oddball tube between 38mm and 54mm that someone had donated. Since it wasn't really useful to the team, they were gracious enough to let me have it.
Motor mounts are 29mm on both the booster and sustainer. The nose cone is 3D printed, as is the AV bay that holds an Eggtimer Proton and an Eggfinder Mini. A JLCR will minimize drift. In an ideal world, the nose would have been a little longer, but I was limited by borrowed printer capacity. The coupler that holds the interstage is a custom fiberglass layup. It happens that a 1 1/4" PVC pipe in the basement was just the right size for a mandrel for that.
I'll have some pictures up tomorrow. In the meantime, a sim to look at. An F79 (24mm 3G CTI smokey) to F36 (29mm 1G CTI blue) is about the lowest possible altitude at 500m apogee. I would like to work up to an H163 (29mm 3G CTI white thunder) in the booster and either a G54 red or G33 mellow in the sustainer. Those top out at 1500m. 5000 feet isn't too shabby on full H/baby I total impulse!