fly rc heli

1. Check the ball links for looseness or slop. They'll wear out over time and if they're not on tight, they can pop off during flight and cause a crash.


2. Check all mission critical nuts and bolts to make sure they're on tight. Excessive vibration can cause them to back off or come loose, even if you've used thread lock.


3. Inspect the wiring. Visually check the wiring for damage and ensure that there are no breaks or cuts and that the servo plugs are securely plugged into the receiver. If you have any servo wire extensions, make sure the connections are solid.


4. Test your radio. If it's your first flight of the day do a range check and make sure there's no interference nearby and that the throttle hold functions are working properly. It would also be a good idea to quickly check your trims to be sure you haven't bumped one out of position.


5. Check that everything's working properly and moving as it should. Check the throw direction for all pushrods and servos and make sure the swashplate is moving as it should. It's very easy forget to change a radio setting back to normal when bench testing.


6. Check your tail belt tension. A loose belt can cause slippage and loss of tail control. A belt that's too tight will put unnecessary wear on your motor and other tail drive system parts potentially causing a problem. Squeeze it with your fingers to ensure it's tight enough, but not too tight.


7. Make sure everything's mounted securely. Make sure that all parts that are mounted with pads, Velcro, zip ties or double sided tape are attached securely.


8. Check your batteries. Make sure your batteries are all fully charged and secured properly. If possible, test them with a volt meter under load. Also visually inspect them for damage or potential causes of short circuits.


9. Inspect your blades and flybar. Visually check that they're aligned properly and that they're on securely. Move them a little to make sure the dampers aren't broken or worn out.