The wearing of safety glasses is strongly recommended.
Do not start your engine in an area containing loose gravel or sand. The propeller may throw such material in your face and eyes and cause injury.
Take care that loose clothing (ties, shirt sleeves, scarves, etc.) do not come into contact with the propeller. Do not carry loose objects (such as pencils, screwdrivers, etc.) in a shirt pocket from where they could fall through the propeller arc.
Take care that the glow plug clip or battery leads do not come into contact with the propeller.
If you install a spinner, make sure that the slots for the propeller blades do not touch the blade roots and weaken them.
