Smaller than a Kolibri...
Wow, this is cool! I happened to come across a new tiny engine from Martin and Marcel. Still a prototype running critical but working good enough to get in the air with my Stinger 64. AUW of a bit under 2lb with the thrust of a little more than that. The guys doing the magic are waiting for new casted parts to get it running better and to bump the power. Already with a little more then 2lb of thrust the Stinger goes pretty well. Launches perfect too with no problems of the extra weight. (I think the EDF is lighter?!)
Marcel got one in a Squall too, pretty amazing
The baby Kolibri engine is 45mm(1.75") in diameter 92mm(3.6") long and weighs in at 150grams(5.3oz)
Makes the standard kolibri look huge