Red mini speedy plank fuselage.

thingiverse

I really like the Wersy Speedy "Red Mini Wing" at https://www.thingiverse.com/thing:1117576, so I decided to reboddy his wing. Planks in general fly as straight as an arrow and out turn and bank all rear motored swept wing models better than any other design. If you want to learn to fly a plank, this one isn't for beginners. I wanted an external motor to allow more heat dissipation, which is crucial for high-performance flight. I have over heated the motor with the speedy red mini wing fuselage and it melted the firewall. Wanted room for a bigger battery There are many quad 1300-1500mah4s batteries out there with a 100c rating that can handle heavy loads. The body has two main sections connected with a glued in connector. The stabilizer glues into the fuselage, making it very strong. I use 1/8" bamboo skewers through the fuselage to hold the wing on with a rubber band. The battery is inserted through the wing opening, which makes for a much stronger nose section. The fuselage is a small bit lighter than the original and has a lower, smaller vertical stabilizer that reduces drag. I also incorporated good sized wing root fillets to decrease interference drag even further. I printed the body with 2 layers and added in 50% infill to ensure that the nose has solid motor mount. The stabilizer was printed on edge with one layer, 4% infill and a brim. It is tapered for better airflow. The motor I used was a 50 gram motor with 16x19mm mounting hole centers. It is a Hobby King Funfighter2825 1950kv that performs well under high loads. It takes a 6" screwdriver blade to put the motor screws in and can be done easiest before you attach the two ends of the fuselage but it does okay after assembly. I have flown this machine with as small as a 1000mah3s and as large as a 1600mah4s. I usually launch at full power, with my left hand holding the right wing tip. When the plane lifts up I just guide it off into the air. My right hand is holding the radio with my thumb on the stick. After launching, I roll the throttle back to maintain control. Have found that PETG works very well for this design. It seems tougher than PLA and provides better durability under stress. I hope you print the Wersy2 at https://www.thingiverse.com/thing:1117576 and then print this body. I did a minor update on the hole placement on rear fuselage and stabilizer, making it easier to assemble.