Mark Stull of Christoval, TX was an early “extreme” user of PerfectFlite electronics.
In 2003 Mark was developing inexpensive, minimum diameter K powered launch vehicles
to propel a radiosonde beacon to 20,000’ for atmospheric research. He used numerous
different configurations; single stage, two stage, and boosted dart. One two-stage
K to I vehicle broke mach twice during the flight (once during booster burn, then
again during sustainer burn).
Mark used the miniAlt/WD altimeter and miniTimer timers in all of his projects.