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This is it, folks! In the final battle of J-B Weld vs. supersonic rocket powered flight, I build a 75mm minimum diameter rocket that my Patreon supporters and I dubbed "Third Charm's the Try" and fly on a Cesaroni M1675 Pink rocket motor. The projected top speed is around Mach 2.2, or around 1,700 MPH (2,700 Km/h). This rocket was built only with J-B Weld and J-B Quick for structural bonding. There is no tip-to-tip composite layup, no fillers in the epoxy, and no other reinforcement of any type. It's just a good composite bond with J-B Weld and some meticulous surface preparation.

Want to see the other JB Weld Builds? Here they are!
   • Can JB Weld Survive 1,000 Miles Per H...  
   • JB Weld Rocket vs. Supersonic Speeds  


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