Engineering tools // Free to use
Built for my own work, published because they might save you the same afternoon they saved me.
Refreshed hourly Live
5,330 components across seven categories, with 2,364 cheapest from an Australian vendor. Every column filters by range, and each category ranks by the figure that actually decides a choice: thrust-to-weight for motors, Wh/kg for batteries, kg.cm per gram for servos, amps per gram for ESCs.
Open data Live
The whole catalogue as one JSON document: specs, derived metrics, every vendor offer in AUD, and 21,377 compatibility links between components and the parts that fit them. Same file the selector runs on, so it is never a stale export.
Rebuilt hourly · No key required
Groundschool covers the engineering these tools assume you already know: how an aircraft is sized, what a motor datasheet is really telling you, and which number decides each choice.
