RC EDF Power Calculator
What this calculator does
This calculator helps estimate current draw, loaded voltage, motor RPM, efflux speed, static thrust, input power, motor efficiency, and battery load before a setup is flown. It is useful for RC jet pilots choosing between motors, fans, ESCs, and LiPo packs, especially when comparing 70mm, 80mm, 90mm, and larger EDF combinations. Select catalog components where available or enter manual values for custom setups. Example: before moving from a 6S to an 8S EDF setup, compare the expected current, wattage, ESC headroom, and battery voltage sag so the first test is planned instead of guessed. Use the output as a setup estimate and confirm with wattmeter data and safe temperature checks.
In practical terms: It estimates EDF electrical load and thrust-related values so pilots can compare fan, motor, ESC, and battery choices.
How to use it
Select the EDF fan, motor, ESC, and battery, then adjust cell count or overrides only when the setup differs from catalog assumptions.
Example calculation
Compare a 90mm EDF on 6S and 8S to see how current, wattage, loaded voltage, and static thrust change.
FAQ
What does the EDF Power Calculator estimate?
It estimates current, loaded voltage, RPM, efflux, static thrust, wattage, battery load, and setup risk for electric ducted fan systems.
Why is EDF battery choice important?
EDF setups often pull high continuous current. A weak pack can sag badly, reduce thrust, increase heat, and shorten usable flight time.
Can I use this as a final guarantee?
No. EDF airflow, ducting, timing, cooling, and battery condition affect real results. Use wattmeter testing and temperature checks before flying aggressively.
How does the thrust tube calculator relate to this page?
The thrust tube calculator helps size fan swept area and nozzle diameter, which can affect EDF loading and efflux behavior.