butalane
Well-Known Member
- Joined
- May 15, 2009
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All,
Last weekend at BALLS myself and Oberth flew a 4" minimum diameter rocket on an ~N5000 EX motor. The rocket was named "Honey Badger Don't Care" after the YouTube video and because I designed and built the rocket to be a tough testbed rocket that would provide a learning experience from which we could leverage techniques and processes for future, more high performance projects. The rocket consists of a 60" FWFG Performance Rocketry Tube with a FWFG von Karman nosecone.
The motor was a 98mm case with radial pins holding the nozzle and forward closure. I need to consult my notes for the area ratio of the nozzle, but it was pretty high as far as EX motors go. The formula was all around moderate; solid loading, aluminum content, and ISP (235s), except for pressure which peaked at over 1000PSI.
I am going to throw up some post flight pictures of the rocket, some construction pictures and some pictures from the previous flight when I get some time but for now the BALLS flight:
Peak Alt: 40,000ft
Peak Velocity: Mach 2.5
Peak Acceleration: 42G
We'd like to thank tfish and burner for their support during this and the last flight. Having the pros to consult when you're trying to fly rockets like this certainly makes things a lot easier.
Last weekend at BALLS myself and Oberth flew a 4" minimum diameter rocket on an ~N5000 EX motor. The rocket was named "Honey Badger Don't Care" after the YouTube video and because I designed and built the rocket to be a tough testbed rocket that would provide a learning experience from which we could leverage techniques and processes for future, more high performance projects. The rocket consists of a 60" FWFG Performance Rocketry Tube with a FWFG von Karman nosecone.
The motor was a 98mm case with radial pins holding the nozzle and forward closure. I need to consult my notes for the area ratio of the nozzle, but it was pretty high as far as EX motors go. The formula was all around moderate; solid loading, aluminum content, and ISP (235s), except for pressure which peaked at over 1000PSI.
I am going to throw up some post flight pictures of the rocket, some construction pictures and some pictures from the previous flight when I get some time but for now the BALLS flight:
Peak Alt: 40,000ft
Peak Velocity: Mach 2.5
Peak Acceleration: 42G
We'd like to thank tfish and burner for their support during this and the last flight. Having the pros to consult when you're trying to fly rockets like this certainly makes things a lot easier.
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