Please, read the notice below before using AERO-NAUT folding propellers.
Before assembling the blades, deburr the various edges and the root Balance the propeller when assembled The propeller should only be operated with an electric motor The maximum admissible number of revolutions may not be exceeded The value of the maximum admissible number of revolutions is printed on the packing label. For example "max.13000 U/min" means that the maximum RPM (Revolution Per Minute) must not exceed 13000 RPM Check before each flying session that the propeller is firmly fixed on the motor shaft Check before each flying session that the propeller is not damaged in anyway (visual check) and, if necessary, re-balance the unit Consider the need to replace any damaged blade or distorted centre piece (heavy/crash landing) Ensure that the motor starts up slowly via a speed controller or soft-start. Alternatively, a resilient coupling should be incorporated. With sudden starts there is a risk of blade fracture and hence the dangerous risk of injury. Similar comments apply to rapid braking! After a crash or heavy landing - especially, if the blades were rotating, a fresh inspection should be made.