Summary

I really like the Wersy Speedy "Red Mini Wing" https://www.thingiverse.com/thing:1117576 and decided to rebody his wing.

Planks in general fly as straight as an arrow and will out turn and bank all rear motored swept wing models. If you want to learn to fly a plank this one isn't for you.

I wanted an external motor to allow more heat dissipation. I have over heated the motor and it melted the firewall with the speedy red mini wing fuselage.

Wanted room for a bigger battery There are many quad 1300-1500mah4s batteries out there with a 100c rating.

The body has two main sections connected with a glued in connector. The stabilizer glues into the fuselage. 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. Makes for a much stronger nose section.

The fuselage is a small bit lighter than the original and has a lower, smaller vertical stabilizer. I also incorporated good sized wing root fillets to decrease interference drag.

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.

The motor I used was a 50 gram motor with 16x19mm mounting hole centers. It is a Hobby King Funfighter2825 1950kv. 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. It is quite spirited and does not need more than a half inch of throw on the elevons.

Have found that PETG works very well It seems tougher than PLA.

I hope you print the Wersy2 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. shape.