Rocket Researh Center (IRC) introduced new class of small long burning engine that is convenient as motor for small gliders... ..this is very similar to motors known as " Rapier" or "Jetex".
Duration of burning is about 20 seconds. That is enough time for glider to climb high and reach a fair altitude to start with free flight...
@blaineanator : Guanidine nitrate; it burns slow and cool and it lent itself to long burn rocket motors made by Jetex many years ago.
pevargas 1 year ago
cool wats the mix
blaineanator 2 years ago