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Hybrid rocket engine with acrylic and gaseous oxygen
- Published_at:2012-09-24
- Category:Science & Technology
- Channel:Ben Krasnow
- tags:
- description: I built a small rocket engine for demonstration purposes. The engine is built from a 2" diameter acrylic rod through which I drilled a 0.5" hole. The oxygen at 80 psi or less is passed through the hole and then is forced through a convergent-divergent nozzle at the tail end. The nozzle's throat is about 0.25" and expands to 0.625". I lit the engine by inserting a burning cotton swab (with wooden stick) while a small amount of oxygen was flowing. The acrylic catches fire very easily in a pure oxygen environment. The engine can be throttled and shut off completely, which is a major benefit to hybrid engine designs. Solid-fuel rockets cannot be throttled or shut off, which makes them difficult to control.
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| 2012-09-27 | 265,448 | 2,916 | 286 |
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| 2012-09-28 | 306,308 | 3,061 | 310 |
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| 2012-09-29 | 340,108 | 3,271 | 356 |
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| 2012-09-30 | 356,862 | 3,369 | 373 |
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