HIGH POWERED ROCKET ENGINES made of PVC pipe

For as much as we delight in rockets, explosives, as well as other harmful things, we haven’t stated a word about the works of [Richard Nakka]. He’s the original hacker rocketeer with countless words devoted to the craft of making things relocation directly up truly fast. one of his much more fascinating develops is his series on building rocket engines out of PVC pipe written in conjunction with [Chuck Knight].

For the propellent grains, the PVC rocket didn’t utilize the typical potassium nitrate as well as sugar blend of so numerous homebrew solid rockets. Instead, it utilizes Sorbitol, an synthetic sweetener. While melting as well as casting the Sorbitol-based propellant grains is much simpler than a sugar-based concoction,  the Sorbitol had much less thrust than a common sugar rocket, making it the ideal candidate for a PVC engine.

For those of you wondering about the stamina of a PVC engine casing, [Richard] does state making larger rocket engines out of 2 or 3-inch PVC may not make much sense because of the enhanced chamber pressures. There is a relatively smart reinforcement technique for these PVC rockets (PDF warning) that includes utilizing PVC couplers, however the experiments into the stamina of these casings have yet to undertaken.

Thanks [Caley] for sending this in.