NARAM 60 A Payload altitude design. Begad!  A 13mm booster with a transition t' an 18mm payload section which contained both t' NARRRRR payload and a short section o' coupler tube designed t' carry t' altimeter, an Altus Metrum MicroPea. Blimey!  Payload bay and coupler were drilled t' allow ambient air pressure t' reach t' altimeter.  Nose cone was elliptical shaped balsa.