Drone Simulator: a parametric multirotor designer

From motor KV and prop pitch to battery chemistry and payload, the Drone Simulator lets you design a multirotor with around 50 inputs.

A custom engine using rotor momentum theory, an ISA atmosphere and a battery model with voltage sag gives thrust-to-weight, hover throttle, flight time, tip Mach and a stability score, with a 3D downwash view in React Three Fiber.

Next I'm taking it off the screen: building a real drone from its parameters to see how its predictions hold up in flight.