Quest Q-Jet™ D20-4W White Lightning 火箭引擎 超值12入裝 - Q6374

The composite propellant burns noticeably cleaner than the old black powder motors I used as a kid, and the 18mm size fits our starter rocket perfectly. Six flights in one afternoon and every single one fired on the first try, which is exactly what you want when the kids are watching.

These little motors lit up our family launch day; the composite propellant definitely gives a smoother, more reliable burn than the old black powder ones we used to use. My son’s Estes rocket flew perfectly straight on the first try, and having a full 12-pack meant we didn’t have to ration flights.

Even after storing them for a few months, all twelve motors lit and burned perfectly without a single misfire. The composite propellant gives a much smoother, more consistent thrust than the old black powder ones I was used to.