This flight is o' me two-stage "Test Rocket". It has vertical stabilization located at t' top o' t' sustainer. Avast, me proud beauty! T' flight be an M1665 t' M745 with a projected altitude o' 22K feet. Due t' conin' (due t' wind?), t' rocket did nay make t' required stagin' altitude and t' sustainer did nay light. Sustainer did go vertical after separation however. Ahoy! Lots o' videos o' t' stabilization system in action on me channel (search "Jiminaus50").