Construction of the model for taking off from terrene and water.
Hello everybody!
I have long be interesting in this model. I believe it multi-purpose and, as the practice has shown, it confidently takes off from ground and from water, I guess too. Unfortunately I hadn't chance yet to test it in water taking off but I suppose it will not be problematic and the model is able to meet the challenge.
The drawing is available here http://www.rcgroups.com/forums/showthread.php?t=1696964

Everything is easy, print and cut. I'll construct the model using Styrofoam ceiling tiles and wooden rulers. So, let's start...

1. Make parts of fuselage from two layers of ceiling tiles, put the ruler in middle, cut the rudder off

2. Now we have two parts of fuselage and they are also parts of floats


3. Cut the upper part and also strenghten it by rulers


4. Cut the second part (identical), glue both of them together, cut the ailerons off


5. Hang the ailerons on scotch tape


6. Hang the rudders


7. Glue parts of fuselage with strong squareness checking


8. Now we are about floats. Glue the bulkheads in


9. Glue the side part of float


10. Glue the bottom part of float


11. And repeat steps with second float


12. It is the elevator, ruler is glued in middle


13. Hang the elevator on scotch tape


14. Glue the assembly to fuselage


15. Then we are about the middle part of fuselage. Cut two halfs and glue them, constrict the nose by scotch tape


16. Cover the bottom by ceiling tile


17. Cover the top


18. I made motor mount from wooden ruler, Styrofoam block is glued in for extra strength


19. Make small hatch for accessing battery and electronics


20. And now we swift the model by color scotch tape, nothing is limit here except your fancy =)


21. For extra strength we reinforce float bottoms by armored scotch tape


22. So everithing is done and we may proceed with electronics


23. Glue the servos into prepared holes in wing


24. Servo will be located inside the float. Guide the cable in, swamp all holes by hotmelt (thermo glue)


25. Install the push rods. Rudder push rod is quite long so it is necessary to guide it through Bowden sleeve


26. And the same for elevator


27. Install the engine, the wires are passed through the hole below the motor


28. Allocate the electronics, glue Velcro band for battery fixing


29. I made air intake for cooling. Originally (on draw) it was just a hole below, but I like my solution more


30. I suppose the cooling will be most effective. Also I made the hole behing, where motor mount is, as air outlet


31. And that's all! Everything is done and the model is ready to fly





Specifications:
- wing span - 820 mm
- length - 890 mm
- full weight with battery - in 550-600 g

What is inside:
- brushless outrunner motor 2212 2200 kv with ESD 30 A (from aliexpress)
- 9 g servos
- 8" x 3.8" propeller (it was trimmed to 7")
- ZIPPY Compact 1500mAh 3S 35C and 2200mah 3S 40C batteries
- Spektrum AR600 receiver

I have long to wait the weather for first run. I have no luck with high wind weekend by weekend. Eventually I've lost patiency and I made decision to go on field with any weater)) That's what happened in the end:



Of course the wind was too hard for the model. It was easy to hang out it upwind at the same place. Sometimes wind gusts were so strong that the model was plucked harshly up and down. But I had like it in total. The model takes off easy from the hand and from ground, and it will not have problem from water too, I guess. Thrust redundancy is enough, I've flied on half trottle and if full trottle is used than the molel fly like a rocket.

It's all, thank you very much for your attention. And have a lucky flights!
This is the translated version. You can read the original Russian article here.