// RC_CALC v2.0

Heli Headspeed

motor · drivetrain · RPM analysis
Throttle → RPM table
Enter parameters and press Calculate to generate the RPM table.
ESC ZONE ■ <65% Inefficient ■ 65–69% Marginal ■ 70–90% Optimal ■ 91–100% No headroom
GOV HEADROOM ■ ≤80% Good — 20%+ reserve above throttle ■ 81–85% OK — 15–20% reserve ■ 86–89% Tight — less than 15% reserve ■ 90–100% None — governor will bog under load