Misfit Flats, Stagecoach, shiver me timbers, NV. Custom two-stage rocket - 54mm airframe, 38mm Aerotech 38/600 RMS I435 in t' booster t' 29mm Aerotech DMS H195 in t' sustainer. Booster altitude be 2,722' AGL, sustainer hit 5,915'. Ahoy! Interstage failed under booster thrust which is visible in t' video and resulted in high drag and induced a spin. Avast! Sustainer motor ignition at BECO +2.0 separated booster from sustainer. Booster suffered catastrophic damage - broke 2 o' 3 fins on landing, top o' airframe was cracked in flight, ya bilge rat, and t' interstage was destroyed by sustainer motor. Sustainer suffered minor damage t' bottom o' airframe. Avast! Electronics were RRC2 in t' booster for main chute deployment at apogee, RRC2 for dual deployment recovery in sustainer, me bucko, Missileworks T3 for trackin' in sustainer, as well as Missileworks PET2+ timer handlin' stagin' events. All electronics s