Designed specifically for t' NARRRRR B Cluster Altitude event.  This was  a ”qualified flight” mode, nay expected t' be competitive. Well, blow me down!  Designed around an 18” BT-70 body tube with a 5x18mm cluster motor mount and a 4.25 inch rounded olive balsa nose cone. Blimey!  T' design be nay stable accordin' t' RocSim so t' nose cone was modified t' accept some ballast weight in t' form o' a large heavy screw eye. Blimey!  vent Holes were drilled in t' body tube t' provide good ambient air pressure t' t' altimeter.