Simple Hercules - RC Semi scale 1:32 C-130 Hercules - 129 cm wingspan

thingiverse

EDIT - 04.03.2019: Added skis that clamp around the rear wheels with rubber bands around the front main wheel axle. Assemble them using M3x25 mm screws, ideally countersunk for a secure fit. Rubber bands can be made by cutting up a road bicycle inner tube; they provide extremely strong holding power. Mirror the main skis in your slicer to create matching skis for the other side. Check out this video of the ski teeter function: https://youtu.be/XbbhEMCZWEw The front ski secures to the nose wheel axle and should be glued together before installation. I've recently updated several parts, so check the revised parts list with its current timestamp. The new nose features more room for steering the wheels, while the Vstab has a more realistic scale outline. -------- EDIT: Added a cargo door and scale propeller. The new components are Cargohatch01, Fuselage03, Fuselage04-hatch, Fuselage05, and Scaleprop01. This propeller is suitable for low rpm use, such as 1500 kv motor on 2S or 1000kv motor on 3S. However, high rpm can cause the propeller to flutter and break, so use a full cooling fan during printing. ------ Maiden video: https://youtu.be/mlUVwXJpvk0 Make sure to check the file list for updates if you've downloaded before. This is a larger version of my micro Hercule (https://cults3d.com/en/3d-model/various/micro-c-130-hercules-rc-model). Specifications: Wingspan: 1290 mm Length: 910 mm Estimated AUW: 500 g CG: ~45mm from the leading edge of the wing center section. I haven't flown this yet, but it should perform well as it's a conventional airplane. General modeling skills and understanding of rc plane mechanics are required for assembly. Assembly tips: Use CA hinges for all control surfaces. Connect elevators together using 1 mm piano wire. Create rudder torque link through the fuselage with 1 mm piano wire. For lightweight slow flyers, use 1 mm piano wire to create aileron torque links; however, if you plan to fly fast, use separate servos for each aileron mounted under the outer wing. Assembly notes: Use an 8 mm carbon tube or other equivalent tube to join the four center wing sections. Index, join, and latch fuselage and wing parts together using 4mm, 3mm, and 2 mm carbon rod. Fasten nacelles with an M3 screw in the rear hole and a small pin in the front hole for alignment. Wing center section features 4mm channels for creating a latch mechanism after printing. Printing notes: Print Fuselage 02, 03, and 04 without top layers so that they have open-ended tops. Cut away excess material on the bottom print layers of Fuselage 01 and other parts to reduce weight; only a thin ring around the inside of the skin is needed. Recommended wheel sizes: Nose wheels: 25 mm Main wheels: 38 mm Suggested electronics: 6g servos or smaller recommended. Suitable for ~28 mm drone motors. Sub 15 g motors are suggested, but the plane can carry <40g motors. The prototype flew with these modified motors: https://www.ebay.com/itm/DXW-D2206-1500KV-for-RC-FPV-Fixed-Wing-Drone-Quadcopter-2-3S-Brushless-Motor/283187198546 10 A ESCs. 2S 1500 mAh lipo or smaller. Feel free to experiment, as I made this up and so can you.