Information For The FireFly
The Firefly was first released in a 1968 Centuri flyer as "the worlds
smallest two-stage rocket." It was designed around the new "Shorty"
motors that were one inch shorter than standard motors. This allowed the
Firefly to be several inches shorter than most two-stage rocket kits of the
time. It incorporated the "Dual Lock" stage coupling for more reliable
upper stage ignition. The Firefly was Centuri #KA-6.
The Semroc Firefly is updated by replacing the pre-marked fins with
precision laser-cut fins. The original balsa nose cone and body tube sizes
are used. The original nose weight has been replaced with a heavier
version to improve stability. The original rubber shock cord is replaced
with an elastic cord for longer life. The original method of attaching the
shock cord has been replaced by a Kevlar cord for greater reliability.
"Shorty" motors are no longer available, so adapters are provided to
convert mini-motors into "Shorty" motors.