The detail that got me: the powerplant is a completely stock DeWalt 20V brushless drill, sitting upright in the middle of the fuselage with the prop clamped straight into the chuck and a black aerodynamic spinner cone on the front. Nothing on the tool was modified, and the battery housing even carries the 'DEWALT' and '20V MAX' markings. PeterSripol built an entire flying airplane around a hardware store item, and it genuinely works.
The airframe itself is classic quick-build material taken seriously. Foam board, hot glue, poplar wood spars and microwave-heated foam ribs form the structure, while the main wings, tail section and stabilizers are brown paper-faced foam board or cardboard. An aluminum square-tube tail boom stretches the back end, and the landing gear is simple wire struts carrying two small foam or rubber wheels. Even the propeller is homemade, a two-blade design milled from an ordinary 2x4 wooden stud on a CNC router.
The throttle setup is the oddest part: an RC servo connects through a linkage to squeeze the drill's variable-speed trigger, while additional servos handle the tail surfaces. Flown from a transmitter, the aircraft achieved sustained flight and managed climbs, banks and rolls.
It was not all clean flying, though. An attempt to carry a smartphone ended in a minor crash that chipped the wooden prop, which was taped up and re-launched for a further flight. In the end the aircraft flew into the ground and shattered the foam airframe, leaving the drill as the survivor of the story.
Project by PeterSripol. Watch it on their YouTube channel: