21x13.5E APC AP21135E Electric Propeller for RC Aircraft  [AP21135E]

APC PROPELLER 21x13.5E ELECTRIC
Price:
AUD$18.54
Brand:
APC
Model:
AP21135E
Condition:
Brand New
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APC 21x13.5E Electric Propeller - Tuning for Thrust

This APC AP21135E propeller is an RC-scale replacement intended for electric-powered model aircraft. The description focuses on how the blade affects performance so you can apply measured tuning changes to your powertrain.

Fitment: check hub diameter, shaft type and spinner clearance on your airframe before purchase. The propeller is intended for electric drive systems, so verify motor axle size and prop-nut or adapter compatibility to ensure a secure mount.

Installation tips: balance the blade before first use, secure mounting hardware evenly, and run a short static test to confirm no unusual vibration. If vibration occurs, re-balance or inspect the spinner and motor bearings.

Tuning role: this propeller is used to change thrust and RPM behavior in electric models; use incremental pitch changes or motor timing adjustments on your ESC rather than aggressive hardware swaps. Monitor motor and ESC temperatures during tuning flights to avoid thermal stress.

How does pitch change affect thrust and RPM with this prop?

Higher pitch increases theoretical thrust at the cost of RPM; swap props incrementally and log thrust and current draw to find the best balance for your motor and ESC.

Should I adjust ESC timing when switching to this propeller?

Minor timing tweaks can help keep motor temps in range when a larger or higher-pitch prop increases load. Monitor temperatures during static and flight tests after any change.

What signs indicate the prop is overloading my motor?

Elevated motor or ESC temps, unusually high current draw, and reduced acceleration are key signs. Reduce pitch or choose a smaller diameter prop if these occur.

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