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

cults3d

EDIT - 01.10.2019:\n\nA new nacelle front part (Nacelle06.stl) has been added for using standard 28 mm outer diameter 2205-2207 drone motors. Suggested motor KV range is 1500-2300.\n\nEDIT - 04.03.2019:\n\nSkis have been added to the design. The main gear skis clamp around the rear wheels and use a rubber band around the front main wheel axle. Assemble them using M3x25 mm screws. Countersunk screws are best for this but any will work. Rubber bands can be made by cutting up a road bicycle inner tube. They make extremely strong rubber bands. To get skis for the other side, mirror the main skis in your slicer. A video of the ski teeter function is available at https://youtu.be/XbbhEMCZWEw.\n\nThe front ski secures to the nose wheel axle and should be glued together before installation. \n\nMany parts have been updated lately so check the latest update time stamp on the parts list. The new nose has more room for steering of the wheels and the new Vstab has a more scale outline.\n\nEDIT: \n\nA cargo door and scale propeller have been added to the design. The new parts are Cargohatch01, Fuselage03, Fuselage04-hatch, Fuselage05 and Scaleprop01. The propeller is suitable for low rpm use. For example 1500 kv motor on 2S. or 1000kv motor on 3S. High rpm will cause the propeller to flutter, which can break it. Use full cooling fan on to print the prop.\n\nA maiden video is available at https://youtu.be/mlUVwXJpvk0.\n\nCheck the file list for updates to the files if you have downloaded before.\n\nThis design is a larger version of my micro Hercule (https://cults3d.com/en/3d-model/various/micro-c-130-hercules-rc-model). \n\nWingspan: 1290 mm\nLength: 910 mm\nEstimated AUW: 1000 g\nCG: ~45mm from the leading edge of the wing center section.\n\nThis design should fly fine as it's a very conventional airplane. However, general modeling skills and understanding of rc plane mechanics is required to assemble it.\nUse CA hinges for all control surfaces.\nUse 1 mm piano wire to connect elevators together.\nUse 1 mm piano wire to create rudder torque link through the fuselage.\nServos can be installed wherever you want. It's deliberately designed basic to leave this up to the builder. Cut slots and glue servos in place. Some photos of servo installation on one of my Hercs are available.\nUse 1 mm piano wire to create aileron torque links if you're building a lightweight slow flyer. Important: If you intend to fly fast use separate servos for each aileron, mounted under the outer wing.Use an 8 mm carbon tube, or other 8 mm tube, to join the four center wing sections.\n4mm, 3mm and 2 mm carbon rod is used to index, join and latch fuselage and wing parts together.\nNacelles can be fastened with an M3 screw in the rear hole and a little pin in the front hole for alignment.\nThe wing center section has 4mm channels for creating a latch mechanism after printing.\nFuselage 02, 03, and 04 should be printed with no top layers so that the top is open ended. That way the other parts slot into them.\nCut away the 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.\nNose wheels should be 25 mm.\nMain wheels should be 38 mm.\n\nSuggested electronics:\n6g servos or smaller recommended. \nSuitable for ~28 mm drone motors. Sub 15 g motors recommended but the plane can carry <40g motors. The prototype flew with these, modified with longer shafts: https://www.ebay.com/itm/DXW-D2206-1500KV-for-RC-FPV-Fixed-Wing-Drone-Quadcopter-2-3S-Brushless-Motor/283187198546\n10 A ESCs.\n2S 1500 mAh lipo or smaller.\n\nFeel free to experiment. I made it all up, and so can you.