Airblade AB1404 3850kv
A powerful micro pancake motor from Airblade
Very wide band of efficiency covering both heavy and light loads, though perhaps lacking in KV for extremely light 2" props. Not quite hitting the highest peak efficiency compared to some other motors, even when hitting exactly the perfect torque load, but since it works over such a broad range of loads it should give extremely consistent performance even at varying throttle positions.
calibration report - most recent dyno calibration at the time this test was run