7x3.8 WSF Prop for Electric Slow-Flying Models APC AP07038WSF  [AP07038WSF]

Slow-Flying Propeller Details

This APC AP07038WSF propeller is supplied as a replacement part for electric slow-flyer RC aircraft. The 7x3.8 sizing and WSF wide-blade designation signal its purpose: enhanced low-speed thrust and steady handling rather than compatibility with a single airframe type.

To install, remove the current prop or adapter, position the APC prop on the motor shaft or adapter, confirm rotation direction, and secure with the original nut or locking hardware. Make sure the prop sits concentrically and that there is adequate clearance with any spinner or fuselage parts before the maiden run.

Flight characteristics: the wide blade improves thrust and control at lower RPMs while lowering peak speed, making it suitable for scale work, instructional flights, and models prioritising smooth slow flight. Check static thrust during setup, monitor ESC and motor temperatures on early flights, and balance the prop to keep vibration minimal.

Routine care: inspect blades after any impact for chips or delamination, rebalance following spinner or hub changes, and replace the prop if structural issues are found. A pre-flight check of all mounting hardware is essential.