Just finished another Manta with a coaxial power system. This one is cut open and covered with 5 micron mylar on both sides instead of milling. Pair of 10" props 5.8g total, 20.6g for the whole motor system including the props and 98.5g flying weight with a 2S 120mAh battery. Flies even better than the first one
Also made some modifications to the older one. Shortening the wires etc brought the weight down to 105.8 from 107g. Getting rid of the wing and elevator tip fenches saved another 1.9g, should be right around 104g now.