Finally, a build update. I managed to find some time to set the UAV up in the front yard, and get some thrust/amperage numbers. Using a 16×8 propeller I recorded the following data:
E-Flite 90 specs: 50 Amps continuous current with a max burst current of 65 Amps for 15 seconds. So with a baseline set of numbers established, its time to make some modification to the airframe, shed some excess weight, balance and mount a bigger prop, and see what we can do with the numbers.