> The total weight of F-SAM is just 69g, of which nearly 40% is battery, yielding a flight time of about 16 minutes. Nice to see mechanical performance qualiti

> The total weight of F-SAM is just 69g, of which nearly 40% is battery, yielding a flight time of about 16 minutes. Nice to see mechanical performance qualities (battery mass percentage), and battery/aerodynamic performance qualities (minutes per mass percentage) condensed to such a small set of numbers. Unfortunately battery and aerodynamic qualities aren't really separable, but if we assume batteries to be a constant between designs (they are all generic off-the-shelf parts after all) "minutes per mass percentage" becomes a quite interesting metric.