C-47 Dakota, RC Plane

thingiverse

This is a simplified replica of the C-47 airplane, divided into several parts that fit perfectly onto my Makerbot Replicator Dual build plate. The model boasts an impressive wingspan of approximately 80 cm. Weighing in at around 500 g, including a 3s lipo with a weight of 75 g, I'm eager to keep the weight even lower if possible. It's also crucial to print the tail as light as feasible in order to bring the center of gravity closer to the leading edge of the wing. Used components include: - DYS 1306, 3100 kV motors (2x) - DYS 10A ESC (2x) - Servo Hextronik HXT500 (4x) - Receiver - LiPo 3S Some valuable tips for printing are: - I printed almost all parts with a single shell and around 5% infill to give them the necessary stability. - To print the wing tips, a support element is included in the files that helps keep the wing tips upright. - The ailerons should be printed like this /, to minimize weight. - The rudder and elevators should be printed with their longest direction aligned with the Z-axis. This helps minimize weight. Update 1 (February 4, 2019): - As suggested by Japin, I modified the tail section of the plane to move the elevator and rudder servos further forward. This should greatly improve the ability to set the center of gravity at the correct location. Therefore, I uploaded a new tail model "FuselageTail_wo_Servos.stl", a new servo holder "ServoHolderCenter.stl" that can be placed somewhere within the fuselage, and a new lid "FuselageMiddleLid_wo_interference.stl". - According to an estimation based on eCalc (www.ecalc.ch), the center of gravity of the plane should be located somewhere between 46 and 50 mm from the leading edge of the main wing.