We should define some metric for judging what's "smallest".
Points for each inch of wingspan, nose to tail, endurance, all up weight, autonomy... We should have some definition for autonomy as well. Deduct for fully automated (i.e. take off and land without any operator input). Precision of flight.
OK, right now I am just interested in some examples, i e has anyone managed a 100g autonomous flight, and what gear was used etc etc.
My first incarnation is ready now - although weighing in at 166 grams. It's based on the MX Composite Swift II wing with a Gluonpilot - see picture below. First flight any day now when it is calm enough...
I am still looking at other/better wings of that size or smaller - around 40 cm or 16 inches. Any suggestions?