For gluing small pieces of balsa to coro I found that it is enough to scrub coroplast with 300 sanding paper and medium CA sticks well.
Now, having this worked out I was on my way to start the COROSTANG. I decided that if this plane works I will build other warbirds the same way. The whole series I named COROMBAT SERIES.
I have change the wing design a little by using 1"x1/4" spruce (from Home Depot) for the one piece spar. The dehidral is only at the bottom of the wing as the spar is 1" thick at the root and 1/4" at the tip. I have also added wingtips (like the COROSPIT has) for a little better scale look. The rest is preatty much the oroginal design except that I have used CF wing dowels and CF pushrods.
To get the proper CG I had to put both servos and the battery all the way back in the fuselage. It gives me plenty room for smoke system (shh... my next project).
Here are the specifications:
- Wingspan = 43"
- Length = 34"
- Dry weight = 42oz (wingloading = 18oz/sqft)
- Power = Magnum 25 XL BB
- Fuel tank = Sullivan 6 oz
- Battery = 6V 720mAh NiMh
- Servos = 2 x HS-81MG (elevator and ailerones) HS-81 (throttle)
- Receiver = Hitec 555
Now here some picturs:
Front view
The wing is slick - this plane should be fast
Bottom view. No landing gear
Front flutes are sealed with some silicone stuff
All servos, battery and receiver are all way in the back
The battery is under the balsa piece glued to the sides of the fuselage
Fuel tank fits very well
Home made elevator horn
Home made elevator pushrods
Home made CF pushrods