As with any aircraft, it is crucial to perform a pre-flight checklist before operating an RC airplane. Some may describe the checklist as one of the most important steps for a successful flight. Although it may seem tedious, completing a thorough pre-flight inspection can prevent accidents, prolong the life of your aircraft, and improve your overall flying experience. In this article, we will cover the essential items to include in your pre-flight RC airplane checklist. Let’s get started with number one on our list
1. Battery Check
First and foremost, you should check the battery life of your RC airplane. Make sure your battery is fully charged before flying. A low battery can cause your aircraft to lose power mid-flight, leading to a crash. Or even as, I’ve seen in the past with an electric jet, not even one circuit of the airfield. Before I take off for every flight I measure the voltage with a battery checker prior to locking the canopy. This check goes a long way. I’d highly recommend following this item if there is anything that you take away from this list.
2. Control Surface Check
Next, inspect each control surface to ensure that they are operating correctly. Check the hinges, control horns, and linkages for any signs of damage or wear. Verify that each control surface moves freely and that it is not binding. Ensure that the control surfaces are moving in the correct direction based on your radio transmitter input. I would recommend placing a small load on each control surface to truly verify if the servos are in good working condition.
3. Radio and Control Surface Direction Check
The radio system is the primary way to control your RC airplane. Before takeoff, make sure that your transmitter is functioning correctly. Test each control surface to ensure that they move in the correct direction and that the response time is satisfactory. Check the radio receiver on your aircraft, ensuring that it is securely mounted and that all of the antenna wires are intact. This check will only be practical if you can visually see the antenna in its currently installed location. Oh, and don’t forget to check your flight time timer to ensure it has been reset correctly.
4. Motor and Propeller Check
The motor and propeller are critical components of your RC airplane. Ensure that the motor is securely mounted, and that the propeller is tight and free from any damage. Make sure that the motor spins freely and that there are no unusual sounds or vibrations. If you notice any issues with the motor or propeller, do not fly the aircraft until the problem is fixed. For EDF jets, you may not be able to reach the motor. Instead, blip the throttle and listening for any abnormal noises. Also listen for the motor revving up to speed and back down to speed in a normal kind of way. Any unwanted friction in the system will behave differently shortening the amount of time the rev up and down will take.
5. Landing Gear Check
The landing gear is often overlooked during pre-flight inspections, but it is critical for safe takeoff and landing. Inspect the landing gear for any signs of damage or wear, and ensure that it is securely mounted. Verify that the wheels spin freely and that they are not bent or damaged. If you have retractable landing gear, make sure that it is working correctly by cycling the gear prior to the first flight for the day.
6. Wing and Fuselage Check
Inspect the wing and fuselage for any signs of damage, cracks, or wear. Ensure that the wing is securely mounted, and that there is no slop in the wing mount. Check the wing and fuselage joints for any signs of separation. If you notice any damage, do not fly the aircraft until the issue is fixed.
7. Center of Gravity Check
The center of gravity is crucial for the stability and control of your RC airplane. Verify that the center of gravity is within the manufacturer’s recommended range. To check the center of gravity, balance the aircraft on your finger at the designated point. If the aircraft is nose-heavy or tail-heavy, adjust the battery or weight distribution accordingly.
8. Range Check
Before taking off, perform a range check to ensure that your aircraft is receiving a strong signal from your radio transmitter. Walk a safe distance away from the aircraft while monitoring the radio signal strength according to the directions found in your operators manual. If the signal is weak or if you notice any interference, do not fly the aircraft until the problem is fixed. This is only most critical to test when you are making a first flight or something in your airplane has changed.
In conclusion, a pre-flight checklist is crucial for safe and enjoyable flying of your RC airplane. By following these essential items, you can prevent accidents, prolong the life of your aircraft, and improve your overall flying experience. Always perform a pre-flight check before flying, and do not take any shortcuts. By doing so, you can ensure that you have many successful flights to come.