Step 1 of 3
What size quad are you building?
Choose the prop size your frame is designed for. We’ll fill in a starting setup for that size.
Size means propeller diameter, not frame diagonal. 1 inch is 25.4 mm; common 31 mm whoop props are about 1.22 inches. Set the exact prop limit in Advanced settings. Four-motor builds. Choosing a size loads example weight and battery values; you can adjust them in the next steps. Ducted builds show parts references only, without flight-time or power estimates.