Buy now at: https://cults3d.com/en/3d-model/gadget/twintrex-all-terrain-aircraft-twin-40mm
his project was by far the most enjoyable to date next to my NGAD. Modeling the design was a blast, the assembly was fun because of the crazy shape, then the maiden flight you must have seen. The TwinTrex just took right off! only minor adjustments were needed to make this thing absolutely perfect. CG was dialed in and the fuselage was adjusted, Thomas Heuer did a fantastic job on all the wonderful refinements he made. He made the elevator larger and easier to assemble and did many cosmetic changes. The TwinTrex can take off from almost all surfaces! i havent been able to test it on thick summer grass since its frozen winter now. It takes off from water, unkept surfaces, snow, ice and i'm sure pavement. Differential thrust makes this come alive with personality. Its easier to fly than ANY large manufacturer RC plane i've ever flown. It absolutely does not need any flight stabilization unless you prefer it. Honestly its as good as an aeroscout for just doing take offs and landings on any surface. I absolutely love it.
Final Flight video https://youtu.be/o3p37B7w4RM
Maiden Flights https://youtu.be/qU0lFN6964c
Throws:
Elevator: Up 28mm Down 15mm
Aileron: Up 18mm Down 15mm
Differential Thrust: 15-20% or in other terms i used 60% on my spectrum mix.
Parts needed
twin Xfly 40mm https://amzn.to/3ECGiau
twin 20-30 amp ESC'shttps://amzn.to/4b4i5Gm
1500-2200 4s lipo
Esc wire extension 2x https://amzn.to/42Ztg1c
Battery Y connector
two 10mm magnets for the canopy
CA glue to glue to plane together
Hot glue for EDF's and servos
Velcro for Battery and anything else you want to tie down.
3D printing settings
You must dial your printer in for Active foaming LW PLA. once you do we recommend
3-4% infill for everything.
I would print the float skis and main wing base in 4% grid or gyroid. everything else can be 3%
1 wall,
3-4% grid infill
2 top and 2 bottom layers