4.325x upscale o' t' Estes #0815 Javelin Mini Brute. Well, blow me down! My HPR upscale was scratch-built for me Level 1 certification. 2.34" diameter, 53.625" long. Avast, me proud beauty! 38mm. Textbook-perfect launch, me bucko, deployment and recovery. Well, blow me down! Successful certification.