HF3D Ventis

thingiverse

Technical details:\r\nSpan: 82cm\r\nMAC: 15.57cm \r\n wing Chord:12.5cm\r\n flaperon root Chord: 4cm\r\n flaperon tip Chord: 3cm\r\n flaperon len: 36cm\r\nArea: 1277cm² \r\nAR: 5.26\r\nAirfoil: E395 with .3cm outwards offset, trailing edge cut\r\nBattery: Tattu 1300mAh 3s or your choice\r\nMotor: Racerstar BR2205 2300kv or A2212 1000kv\r\nProp: APC 8x4F or best match for motor\r\nMass: 612g with battery\r\nWing loading: 4.792kg/m² \r\nFuselage len: 66cm \r\nTail length: 40cm \r\nFlight Cont: APM2.8 running arduplane\r\n\r\nPrint 7 ribs minimum, 3 for each side and 1 for the middle of the wing. I tried both 5mm and 3mm foamboard as skining for the wing, 5mm foam was difficult to bend due to the small radius of curvature for the leading edge of the airfoil. \r\n\r\nAvoid PLA for the motor mount unless you know the motor temperature will be within reason for the material. I had the Racerstar BR2205 motor melt through its mount in the second video below (but I also had it over proped for more thrust).\r\n\r\nSee videos below for more information:\r\nhttps://www.youtube.com/watch?v=hMq31JEhF54\r\nhttps://youtu.be/sKjkSmSpeiU\r\nhttps://www.youtube.com/watch?v=0T6uJfQ7a4E\r\nhttps://www.youtube.com/watch?v=zFDAoicumLA