Information For The Micron
The Micron was released first in 1963 as an entry-level single stage rocket
with streamer recovery. Sharing many design features with the competing
Estes Astron Mark II, the Micron was a popular first rocket for beginners.
The original had a BC-711 balsa nose cone and later models migrated to
plastic nose cones. The Micron was Centuri #KA-5.
The Semroc Repro Micron is updated by using laser-cut fins. The original
balsa nose cone and body tube sizes are used. The streamer is slightly
wider than the original to enhance visibility during recovery. The original
rubber shock cord is replaced with an elastic cord for longer life. The
original method of slitting the body tube to anchor the shock cord has been
replaced by a Kevlar cord for greater strength.